VP7 ®t|f B. M. Ml ffiibrarg •Nortlj (HaroUna 8>lalP MnivrrBttg C^M £ This book was presented by MILTON M. LEONARD, D.V.M. TO THE VETERINARY MEDICAL LIBRARY This book is due on the date indicated below and is subject to an overdue fine as posted at the circulation desk. EXCEPTION: Date due will be earlier if this item is RECALLED. Veterinary Notes DELIVERED BY PROF. A. SMITH, V.S. CAUSES, SYMPTOMS AND TREATMENT )iseases of Domestic Animals, BEFORE THE CLASS OF VETERINARY STUDENTS, THE OWTABIO VETERINIRY COLLEGE, OF TORONTO, CANADA, DURING THE TERMS OF 1890-91. REVISED EDITION. TORONTO : J. A. CARVETH & CO.. PUBLISHERS. i8qi. Entered according to Act of Parliament of Canada, in the year one thousand eight hundred and ninety-oue. By J. A. CARVETH & CO., At the Office of the Minister of Agricultm-e, Ottawa, Ontario. VETERINARY NOTES. DISEASE. It is difficult to give a definition of either disease or health. They are closely united, and it is difficult to draw the line of demarcation. First I ask, what is disease ? We may consider it to consist of a deterioration from a healthy standard, either of function or structure ; or we may say it is just the opposite of health, or a disturbance of the function or structure of a healthy organism. Health is a condition of the animal body, in which all the organs are in good condition, and all the functions are performed in good order ; and it is difficult ta get a body in perfect health. There is generally some little deterioration of structure or func- tion. You may look at a horse ; he does work in a regular manner, and he is considered healthy, but there may be some change in some way, so that it is quite difficult to give a precise definition. There is health where all the organs are intact, and each one capable of discharging its respective duty or function. From health to disease there are certain transitions noticed. If animals are kept in their natural state they are free from disease to a certain extent, but when they become domesticated, then a change takes place in the system. They do not receive a regular supply of pure air, pure water, regular exercise, etc., then this change takes place to a certain extent. All these things must be attended to in order to keep the animals or men in good health. We meet with various terms in the study of disease, as Pathology, which is derived from two Greek words, and means a dis- course on disease, or the doctrine of disease, and includes all the various particulars in connection with disease Pathology may be divided into two divisions, general and special. General pathology considers disease in common, the various branches, causes, symptoms, etc., while special considers each disease in particular. In all diseases there are certain changes that take place in connection with them. It is a very impor- tant branch of study. Etiology, or the causes of diseases. This is also important. It may be arranged under different heads ; there are predisposing and exciting causes. There is almost always a cause for every disease, but it is some- times difficult to tell just what the cause is. If y u can find and remove the cause, the case is, as a general thing, easily treated. Etiology, though plain in some cases, is obscure in others. A disease breaking out and spreading over a large territory is an epizootic disease ; and it is difficult to say what is the exact or exciting cause. Another impor- tant branch of pathology is the symptoms, or Symptomatology , or study of the symptoms of disease ; or the means by which disease is recognized from the symptoms presented by the organ or organs diseased. The symptoms may be general or local. There are in the limbs certain local symptoms, iDut the cause may be such that it will produce general symptoms. It is further divided into primary and premonitory. In laminitis, we sometimes notice the horse exhibiting premonitory symptoms, and, after some time, well marked 4 CAUSES, SYMPTOMS AND TREATMENT OF symptoms. There are general symptoms, as rigours, shivering in fever ; and in certain organs we have symptoms of those organs having under- gone certain changes. Diagnostic Symptoms are those by which we are able to detect the character of the disease, and the parts diseased. It is the discrimination of disease. There are diagnostic, prognostic, and pathognostic symp- toms. There may be a collection of symptoms, and may be character- istic, as in glanders. There is a discharge from the nose. This may be symptomatic of several diseases. But if there is a discharge and ulcera tion of tbe mucous membrane, the sub-maxillary glands are enlarged, and attached to the adjacent tissue, etc., then we liave characteristic or pathognomic symptoms of glanders. Prognosis, or telling the probable termination of a disease. You examine the symptoms carefully, and make up your mind what is the matter, and then tell the future of the disease, either favourable or un- favourable. Therapeutics, that branch of medicine which has reference to the treat- ment of diseases. Diseases are classified under different names, accord- ing to progress and character of disease. These are epizootic, enzootic, specific, sporadic and zymotic ; these are the ordinary classification or heads. Epizootic is derived from two Greek words, signifying on and animal. In human practice it is epidemic. A great many animals become similarly affected at the same time, without any appreciable cause. A common example is that known as epizootic, catarrhal fever and influ- enza. It may be due to atmospheric influence, either contagious or non- contagious. In cattle a good example is epizootic aphthje. Enzootic diseases are confined to certain localities, and are due to local influences. They may become contagious after leaving that certain place. Kinderpest is a good example, but has never been known on this continent. It is in Eussia. Texas fever appears common to certain localities of Texas, but it is set up among the northern cattle. It may be generated from the character of the water, food, grass, soil, etc. In man, the term indemic is applied, as the ague Specific, peculiar to particular class of animal, the virus of which, if introduced into another animal, may produce the same disease as glan- ders, strangles, distemper in dog days, etc., but a specific disease is not necessarily contagious. Sporadic is a word derived from a Greek word, meaning to sow here and there. It is from accidental causes. Most diseases come under this head, and are from well-marked causes. Zymotic. — Some of the diseases mentioned are of a zymotic character. Zymotic means a ferment. It acts like a ferment in the blood. Investi- gations show that by minute bodies, so small that you can scarcely think of their minuteness, an action is set up 'n the blood, perhaps in the form of a ferment We find that most diseases consist in some change in the blood itself, or in the flues wh' i nourish and renew the tissues ; but a majority consist in a char i in the blood itself. In a living body, there is a continual change taking place, and the great characteristics of these changes are the processes of decay and repara- tion, which only terminate at death. Substances pass into the body and are carried to all parts of the body. Waste is taken up in the blood and carried from the body. The body wastes during the day, and during repose it is nourished and the waste repaired. The human being, during one year, loses three thousand pounds by waste of tissue, and the repair equals the waste. However, in youth the repair exceeds the waste, so DISEASES OF DO^nESTIC ANIMALS. & that the animal gradually grows. In the adult they are just about equal, provided there is a certain amount of exercise. In old age the waste is in excess, and the animal becomes smaller. In disease, some- thing takes place, equilibrium is upset, and there is a change of function or structure. We often see this taking place. An animal is attacked by disease and reduced quite quickly — the result of this poison in the system. Life is maintained in the body by the circulation of pure or arterial blood through the system. This blood is the fluid of the body ; whenever arterial blood ceases to circulate, death is the result ; or, if it circulates, but becomes impure, there follows a similar result. If the blood becomes changed but slightly, it produces disease very quickly ; and if changed to any great extent, it produces death very quickly. Life is an aggregate of the functions which resist death, and is maintained by the blood. Death is the cessation of all the functions, the aggregate of which constitutes life. Now death may occur in different ways, and sometimes it is immaterial how an animal died, but at other times we are called to tell how he died. If no blood circulates, death takes place from syncope, from a want of a due supply of blood to the heart, and the heart loses its power. Bleeding causes death from syncope, or from necra^mia. The heart loses its power from want of its natural stimulus — the blood Death from syncope may occur in other ways : the heart may lose its contractile power from a blow over the heart or stomach, or from poisons, or from fright, or from derangement of the nervous system. Asphyxia, or Apncea ; access of air to the lungs is prevented ; as in drowning, hanging, choking, and sometimes from tetanus ; again, from coma. Death from coma begins in the brain — frequentlj' from medicines.* The symptoms are drowsiness or comatose condition. BLOOD. Blood is the great and important fluid of the body, and is carried through the system by means of a set of vessels ; they are arteries, capillaries and veins The heart is the great centre of the circula- tion. It is situated in the thoracic cavity, and acts as a force pump to send the blood through the system ; but there is a power in the vessels of drawing blood to them to a certain extent, somewhat as the sap is drawn up in the tree. The arteries are vessels that convey blood from the heart to various parts of the body. They are so named from the former supposition that they contained only air, as they were always found empty after death. They differ, also, in structure from the vein-, and do not collapse as the veins do. They possess con- tractility and elasticity, and their power of contraction is due to muscular tissue in their walls, which consists of contractile flbre, cells, which have the poorer of diminishing the calibre of the artery in which they are situated, and can either arrest partially or completely the flow of blood. The large vessels are especially elastic ; they have both muscular and ^-ellow elastic tissue. They convey the blood to all the tissues of the body, and when it has fulfilled its function, it is brought back to the heart by the veins. Veins are the vessels which bring the blood to the heart. They have thinner walls than the arteries, and have valves, which valves are fold- ings of the inner lining of the vein. These valves do not exist in the pulmonary vein. They tend to help the blood towards the heart. When the veins are empty they collapse. Between the arteries and 6 CUASES, SYMPTO>rs AND TREATMEXT OK veins we have very small vessels, which form the connecting medium and are called Capillaries, which are formed from the breaking down of the arteries, and from the veins on the other side. They are very delicate and minute, and during health the blood circalates through all these in a regular manner, and the liquid portions of the blood continually exudes to supply the various tissues, and at the same lime there are excreting waste tissue, and it is in the capillaries that nutrition is primarily effected. There are also lymphatic vessels, which take up this waste, but the blood vessels also take it up to some extent. All the tissues of the bod}', whether bone, muscle, hair, etc., are nourished by the blood. Blood is the fluid contained in the heart, arteries, capillaries and veins, and is formed chiefly from the chyle, and when first drawn from the body it has the appearance of a homogeneous fluid. You would think it composed of but one thing, but after a while it loses this appearance. It has a saline taste. The halitu is a smell, or faint odour, which arises from a watery vapour, from freshly drawn blood, and is character- istic of the animal from which it was freely drawn. The temperature of the blood is 98° to 100"^. Blood is of red colour, viewed as a whole, and is a fluid, but not a perfect fluid. It is composed of a fluid portion, the liquor sanguinis aud a solid portion, corpuscles, or blood cells. The corpuscles are of two kinds, the red and the white ; the red being the more numerous, the average being about 250 red to' 1 white, but they vary both in health and disease. These corpuscles float in the liquor sanguinis. These corpuscles a^e very important. They are said to possess vital jDroperties ; are said to assimulate material from the blood, which is called globuline, and haematine. They assimilate material for the right composition of the blood. The red corpuscles give colour to the blood. In warm-blooded animals, the white corpuscles are the larger of the two, and are rather irregular in outline, and are found to change their form to a great extent. The red corpuscles also change during disease. If they do not receive a sufficient supply of water they become dried up, to some extent ; the capillaries are differently arranged in different tissues, as in the mucous membrane, the pkin, the villi of the intestines, air cells (where interchange of gases take place), parotid gland, etc. I will give you an outline of the blood, but different authors give it differently. Water 785,0 Albumen 69.0 Fibrins. .. 3.0 Alkaline and Neutral Salts 8.5 Fatty and Extractive matters 7.5 Corpuscles 127.0 Albumen, fibrine and salts in solution form the liquor sanguinis. Liquor sanguinis 673, corpuscles 127 parts in 1000. Alkaline aud neutral salts : Chloride of sodium, chloride of potassium, phosphate of soda, carbonate of soda, phosphate of magnesia, phosphate of lime, phosphate of iron, oxide of iron. There is a large amount of water that gives blood its fluidity. If the water is drawn off by evaporation, there is a solid left, which is of no use for nutrition. There is intense suffering from thirst on this account. Albumen is a remarkable ingredient of the blood. The white of an egg is a good example of albumen. Albumen is the original pabulum from which all the tissues of the blood are formed ; it holds the salts in solu- tion. Some say there is no fibrine to circulating blood, but we will sup- pose that it does exist, and is the property of coagulation. Other constituents are chloride of sodium, potassium, etc. Animals remote DISEASES OF DOMESTIC ANIMALS. Y from the sea must have a regular supply of salt, which is an ingredient of the blood, The matters of the blood are liable to changes to a certain extent. The amount of blood is about one-eighth to one-tenth the weight of the animal ; but a much less amount than that, drawn, will produce death. There is depletion of the blood in old animals ; if drawn it is not so readily regained as in young animals. The colour varies be- tween arterial and venous blood ; in the arteries it is a bright red colour, and is lit for the building up of tissues. The blood is carried to the lungs, and carbonic acid passes from it, and it is turned from a dark colour to a light red by absorbing oxygen. After being drawn for a short time it re- solves into two parts the clot, or crassamentum, and the serum. This is the natural result, and does not show inflammation. The serum is almost colourless. We give chloride of potash in purpura, for if fibrine is not present then the blood will exude, and chloride of potash assists coagula- tion A solution of soda wall prevent coagulation. This gives us a clue to the treatment of disease by exerting a certain influence on the blood. Blood kept at a low temperature will not coagulate so readily as if warmer. Heating blood coagulates it, from the albumen it con- tains. Blood receives matter from three sources, from digestion in the alimentary canal, from tissues which have served their purpose, and from the atmosphere through the lungs. Oxygen acts upon the system to a great extent. It is said to act on the various tis- sues when the body dies, destroying all the tissues except the bones ; although such body is not molested by dogs or other ani- mals, and either left upon the ground, or buried, some of the materials go into the ground, others into the atmosphere, etc., and pass from one to another ; and some man at the present day may have some of the identical brain of Julius Caesar. Recapitulation of Blood. — The tibrine of the blood is destroyed and reproduced three times in twenty-four hours. So fibrine is a very im- portant substance, for by it we are enabled to control hemorrhage. If rupture of a blood vessel takes place and there is a lack of fibrine or its constituents, it is very hard to arrest hemorrhage ; but if a small vessel is ruptured and the constituents of fibrine are present, you can easily arrest the flow by pressure, for a coagulum is formed and you have heal- ing by the first intention. The fibrine may be increased or decreased under certain circumstances. In laminitis we use soda, for there is an increase of fibrine. If you bleed a horse from the jugular vein, and allow the blood to flow freely into a can, after it settles in the can there is a peculiar white coat upon the surface, which is called buft'. In the horse it is no evidence of inflammatory action, but it is due to the manner in which the blood coagulates ; the white corpuscles being on the top, the red lower down. And the depression on the top of the blood is not due to any change in the condition of the blood. I think you cannot tell by looking at blood what is the matter with the animal. However, in lung disease, the blood is darker than usual, owing to the congested state of the lungs. INFLAMMATION. Inflammation may be said to be an alteration in the healthy structure of function of a part, accompanied by a perverted condition of the blood in the capillaries, all of which may be due to a certain amount of para- lysi.s of the vital principle of the tissues inflamed. From the earliest 8 CAUSES, SYMPTOMS AND TRKATMENT OF ages this subject has excited the interest of the medical inquirer, and treatment of disease was in accordance with the opinion held with regard to this process. We will notice some of the views that were held regard- ing the process. It was supposed to be an exalted action and increased nutrition to the parts, and the antiphlogistic treatment was recommended. It was supposed to be too much blood to the parts, and if it could be gotten rid of, it would cure the disease ; but this has been found to be different, and different opinions are still held. We hear much talk about the vital principle, and it is difficult to tell just what this principle is. It was supposed to exist in certain tissues, as in the brain and nervous tissues ; others tried to demonstrate that it existed in the blood ; others that it existed in the nervous system without blood being the seat of it. But it is now believed that every tissue possesses this vital principle, or property. The cells of every tissue extract from the blood nutritive properties necessary for their growth— muscular tissue, properties for its development, growth, etc. Changes of view regarding this vital principle have led to great changes in the treatment of inflammation. It is diffi- cult to give a concise definition. It is not the blood alone that is affected, but the tissues are also affected. I will give s: me other definitions : It is an exudation of liquor sanguinis, but when there is an exudation of liquor sanguinis there is not always inflammation, and a mere deter- mination of blood to a part is not inflammation, but congestion. It is defined as a peculiar perversion of nutrition or secretion Inflammation may be present, and not have all these conditions Irritation appears to be the starting point of inflammation. Inflammation may be said to be a destructive process, or a fermentative process, and is sometimes just what v^e desire to set up for the healthy maintenance of parts. A part to be in a «^tate of health, must have a regular and not far distant supply of blood, and the right composition of that blood, and the influence of ner- vous force in a natural state. In the process of inflammation there is more or less change. The process can be easily seen in some transparent vascular structures, such as the web of a frog's foot. If this is put under the microscope, the blood will flow through in a regular manner, the red corpuscles most abundant and occupying the centre of the stream move quickly, and are surrounded by the liquor sangoinis. There are some white corpuscles also. They are larger and change their shape, accom- modating themselves to the vessels through which they pass. If an irri- tant is applied to a part, and the part excited to an inflammatory process, a marked change takes place. The vessels contract, and consequently there is a diminution in the amount of blood. By and by the vessels become dilated, and quickly regain their natural size. If the stimulant is but slight when they are dilated, blood will flow a little quicker for a short time, but if the irritation is increased or continued, and of a severe character, the muscular walls appear paralyzed, and do not contract, but dilate much above their usual state, and let more blood into the capil- laries, the circulation becomes slower and slower, there is an increase of blood to the parts, a clear margin of the liquor sanguinis, the blood becomes almost stagnant, the corpuscles alter and adhere to the sides of the vessels, exudation takes place through the walls of the vessels, and gives rise to what is sometimes called leucocythft-mia. Inflammation is established, the blood rushes in and changes to a certain extent — becomes somewhat muddy, so to speak— the vessels may rupture and the blood goes through. Previous to inflammation actually taking place, there is hyperemia or congestion. There must be an altered condition of the blood in the capillaries. It is difficult to say just when congestion ceases and inflammation begins. Inflammation does not terminate so quickly DISEASES OF DOMESTIC AMIMALS. 9 as congestion. Congestion is an excess of blood ia the parts. There are various kinds of congestion. If there is too much blood in some parts, it is local congestion, or partial plethora. We see this without there being any disease Congestion can be caused in various ways, and very easily, indeed. There is always more or less congestion in the lungs in severe exertion. It can be induced by means of the nervous sys- tem — as in anger, one person's face will get red, and another's will get pale — or in the blush of a young lady; or this is sometimes seen in a bashful yonng man, as in Mr. , and see how quickly it takes place. It is done by means of the nervous system. If we irritate a part mechanically, we give rise to active congestion. It may end in hemor- rhage, or pass on to inflammation. It is difficult to say whether it will pass into inflammation or not, especially in the lungs. Signs of Inflammation. — The visible signs are heat, pain, redness, and swelling. But inflammation may go on to a great extent and the tissues be considerably destroyed, without all these taking place. There are signs by which it has been recognized, for hundreds of years. In man, the sign first noticed, often is Redness, but it is not so in domestic animals, as the skin is covered with hair. Eedness depends upon the amount of blood sent to the parts, and it varies in difterent places, and according to the causes. If a horse receives an injury in the eye, the mucous membrane is very much red- dened ; and in scratches, redness is seen, especially if in a white leg. In acute inflammation, the parts are of a florid colour, and it takes place quickly ; if in the bowels, gangrene may take place quickly, due to changes which go on in the parts The Heat is due to the amount of bloofi, and the changes being undergone. If the tissues of the body are being broken up in any way, an effort is made to take them from the system, and this produces heat. The heat of a part is, however, not so much above the natural temperature as you would suppose. In inflammation of the hock, joint, or foot, when you apply the hand, you would suppose there was an increase of many degrees, but it is not so much as you would think. In inflammation it would run up to 102° or 104^^', so it varies from 98'^ to 104°. The increase is greater remote from the heart, as the natural temperature of those parts is several degrees below that of the blood at the heart. We flnd this increase in the hock and foot. The temperature is sometimes higher in influenza than in enteritis, so it is due in many cases to the change taking place. Swelling is due to exudation and effusion into the tissues ; first, en- gorgement of the vessels, which is followed by exudation through the walls into the surrounding tissues. In some tissues swelling is a very evident sign. It takes place quickly and to a great extent, and, no doubt, in some tissues afford relief. In many cases it must not be looked upon with any great degree of alarm ; in lymphangitis it is not a very danger- ous sign. But if in other parts, as the mucous membrane of the respiratory organs, it is more alarming, and may produce death very suddenly, by interfering with respiration. And although this is one of the recognized signs of inflammation, it will occur from other causes, as the peculiar swelling of purpura, which is not due to extravasation of blood, and not to inflammation. We find it also in tuberculor swellings, and rupture of the capillaries. Pain is another sign. This varies much in different structures; in some being most excrcuciating — in laminitis, for example. Here we have an extremely vascular and sensitive structure, and the tissues being covered with a hard, resisting hoof, makes it more painful. In inflam- 10 CAUSES, SYMl'TO.MS AND TREATMENT OF mation of articulations it is the same — a slight puncture in the region of or in the joint, from the action of the air and escape of synovia The same is found in rhtumatism. Although pain is often the sign of the inflam- mation, you may have inflammation go on to a considerable extent without any great degree of pain being manifested. We see this in horses and cattle, and I believe in man, from irritation of the lungs. If in a horse, he is dull, dumpish, as it is called, in doing work. But by and by the appetite is gone, etc., a surgeon is called, and even hepitization may have taken place. Pain is due to the distention of the blood vessels pressing on and affecting the nerves. Tissues that do not appear to possess any degree of sensibility in health will be very painful in inflam- mation — bone, for instance. In this the pain is most excruciating. In the mucous membrane of the bowels and respiratory organs, pain is not so intense ; it is a dull uneasiness, and there may be great pain without much inflammation, as in spavin ; and in spasmodic colic, the animal suffers as much as in enteritis ; but it is, however, a sign of inflam- mation. If a part has been in a state of inflammation, it must have a termination or result. Terminations of inflammation are resolution, adhesion, effusion, sup- puration, ulceration, and mortification or gangrene. Adhesion and effusian are sometimes not given as results. Resolution is the most favourable ; for iostance, if a part has been under the inflammatory pro- cess, this process is arrested, and the parts restored to tteir natural con- dition, then we say it terminated in resolution, which, in most cases, is most desirable. Nutrition and function may be restored to their natural condition, but there may be a slight change in the structure, but so slight that it cannot be noticed, and it is resolution. A form of resolution is delitescence, that in which the inflammation subsides before the exuda- tion solidifies, and the products are taken up by the vessels, and got rid of. We often see this in our patients. After fomenting the parts, the inflammation subsides, and the products are taken up by absorption; but if it coagulates or solidifies, then the process is different and more tedious. It breaks up by a kind of fatty degeneration, and becomes mixed with the surrounding fluids and separates into various compounds, and is got rid of by way of the circulation, through the various excretory organs. It is in this way that some of the enlargements in the system are got rid of. We set up an inflammatory action by irritation, and the results of the old inflammation are broken up and so got rid of Adhesion. — W^hen the two surfaces are brought together, and heal- ing takes place. In our patients many wounds heal by adhesion. W * find this in injuries in certaiu parts, where the exudation, instead of breaking up, is converted into an organized body, and remains during the life of the animal, to a more or less extent. We find this in sprain of the fetlock joint. It becomes inflamed, the ani- mal is moved around, which keeps up t e inflammatory process ; vessels and nerves pass in, and a new structure is formed. But we find this may become denser to a certain extent, and the enlargement becomes smaller and smaller. It is a case of adhesion. When yon have such a case, just think of the inflammatory process, and do not give exercise. Exercise may reduce the pain for the time being, but after resting it will increase. It is, to say the least, absurd : but keep quiet, and allay the Effusion. — There is fibrine or its constituents, but it does not coagulate until exposed to the atmosphere, as in pleurisy. There is more or less eft'usion of serum ; and fibrinous threads are also seen. We have it in connection with injuries, as a kick in the region of the loins, DISEASES OF DOMESTIC ANIMALS. 11 or a bruise on the shoulder. When you examine it, you find it contains fluid — blood and water — not pus ; this is an example of effusion. It comes from a slight injury to the areolar tissue, no doubt. Suppuration or the Formation of Pus. — Pus presents two parts for consideration, a liquid and a solid ; and corpuscles being the solid. It may take place in different ways, or in different forms — circumscribed, diffused and superficial. Circumscribed, as an abcess, or from injuries to the shoulders or muscles. Pns is formed from blood cells, and is known as a yellowish wbite fluid, ordinarily inodorous, but in fistula, etc., it becomes fetid. Dijfuse Suppuration, as in glanders and injuries to the large muscles, as in the gluteal region. Superficial, as in the mucous membranes. Some mucous membranes do not form much pus, while others do ; examples of the latter are those of the nose and generative organs. There are inflammatory tumours, as in strangles ; they are at first hard, then soft, then burst. This is a circumscribed suppuration. It breaks down the tissues and finds its way to the outside, or pus may remain for some time in the tissue, as in abcesses in cattle. It may remain much the same for a considerable length of time, but if punctured dtep pus may be found. Suppuration is sometimes favorable, as in a case of injury from a nail in the foot, matter forms and escapes and relief is afforded. When blood or its colouring mater is mixed with pus, it is called sanious pus. If pus is continued for some time in connection with a diseased bone or tooth, it becomes very fetid in many cases. Pus is sometimes found with active properties. It flows from a wound over the skin, it destroys the hair or skin, and is called ichorous pus. If pus is mixed with poison, as that of glanders, etc., it is called specific pus, for it will pro- duce the same disease. Laudable pus has no smell. Diffuse suppuration may occur in some internal organ, as the lungs, and is called purulent infiltration. In injuries to the groin or withers, if there is danger of erysipelatous inflammation, or danger of it running on to gangrene, diffuse suppuration is sometimes desirable. It is superficial when in the skin or mucous membranes. Ulceration. — This may be called molecular death of a part, and generally arises when the tissues degenerate and are thrown off in large amounts. There are different kinds of ulcers. Some will heal readily while others will not. The ulcers of glanders will not heal. Ulceration is frequently produced by continued inflammatory action. When the vitality of a part is greatly depressed, or the general powers of the con- stitution are weakened, ulceration is likely to take place, the state of the system tending to help it. Gangrene, or Mortification, is death of a part, either in its entirety or a portion of greater or less size, and may proceed from direct injury to a part, and is the result of intense inflammation. When it involves any important organ, or is extensive, it creates great constitutional dis- turbance, acting upon the heart. The pulse becomes weak and indistinct, ending in death, and a large portion of the bowels may be found in a gangrened condition. But if it affects but a small part, there is not much constitutional disturbance. Even a small part of the lungs may become so and the animal live for some time. If a part dies from gan- giene, it acts as a foreign body to the tissues surrounding it, and, like all foreign bodies, sets up an irriiation in the surrounding tissues, which continues, and the surrounding tissues are converted into pus, and the dead part is so removed from the body. We frequently assist nature in this by assisting the sloughing piocess. There are acute, sub-acute and 12 CAUSES, SYMPTOMS AN1> TKEATMENT OF chronic forms. That whidi runs its coui'se quickly is called acute, and it may run on and prove fatal as soon as twenty-four hours. The chronic form may remain in much the same state for some time. Then there are local and specific. Local inflammatory action in the feet, as laminitis, or inflammation of the hock joint, and from punctures. Specific inflammation contains a poison or virus. There are also other terms, as sthenic and asthenic. Sthenic means strength ; asthenic, want of strength The first can only occur in an animal in healthy condition ; in such an animal as is working from day to day, the various organs accing in a healthy manner, etc The asthenic may be generated in an animal in vigorous condition. Signs of Inflammation. — Either in losal or diffuse there is generally more or less fever, which is well marked in many cases. The pulse in- creased, and there is fever before we have the well marked symptoms of inflammation. In pleuro-pneumonia, in cattle especially, a thermometer is of great use, as the increase of temperature can be detected some time before the other symptoms. In diseases of the respiratory organs, there is generally irritability, or the patient is irritable, or dull and drowsy. Rigours or Shivering. — This is significant of congestion, and may last for some time, even a day or two, before the inflammatory action is noticed. When rigoui's are noticed, the animal should be noticed for some time. An animal may shiver from drinking cold water ; but this is different from the rigours produced by disease. Rigours, in some cases, are very severe, especially in lung disease, and also diseases of the bowels, due to changes in the system ; the digestive system is generally more or less affected. In all inflammation, no difference where it occurs (but there are exceptional cases), the bowels are costive, the feces pass in hard pellets, etc. This may be noticed in a puncture of the food to a certain extent. The secretions are more or less affected ; the kidneys do not act in a natural manner ; they give off more solid matter than in a healthy state. Circulation.— By this we can form some idea of the character of the inflammation. This we call the pulse, which is very important in the detection of inflammation and disease generally. This is produced by a wave of blood sent by the contra';tion of the h3art, and the nearer the heart the stronger the pulsation The pulse in the horse, as in other animals, is of great importance ; it tells the number and force of the heart beats. You can take the pulse in any superficial artery, but the • sub-maxillary is perhaps the best, as it is only covered by the skin ; or the radial artery, in case the horse keeps moving the head ; it is just inside the fore-leg. Endeavour to keep the animal as quiet as possible, for if you excite him, you will find the pulse increase several beats, and after standing some time it will again fall. Place the finger transversely across the artery, and you should have some idea of the natural pulsa- tion. It varies in different animals ; slower in heavier horses, quicker in highly nervous animals. It may vary five or ten beats per minute, and the animal still be in perfect health. It runs from 25 to 40. In cattle it is some quicker. You should take the pulse in healthy animals and become familiar with it. There are various kinds of pulsations, as the results of certain diseases — the quick, slow, large, hard, soft, frequent and infrequent. The strong full pulse may be present, and consistent • with good health ; exercise will change the pulse to considerable extent. But if the animal is suffering from disease, and then the pulse is of a wiry character, it is characteristic of the sthenic type of infiammation ^ Suppose an animal has been standing in the stable, and is attacked with' DISEASES OF DOMESTIC ANIMALS. 13 lymphangitis, the pulse is of a full, bounding, wiry character. A wiry and thready pulse is characteristic of inflammation of serous membrane, punctures of the feet, inflammation of the joints, etc. The weak, small pulse is indicative of debility, showing inflammation of an asthenic type. It may occur in influenza and catarrh. The oppressed pulse is characteristic of congestion and inflammation of the lungs ; you would think the heart had great difhculty in propelling the blood forward. The throbbing pulse is characteristic of inflammation in certain parts. In laminitis there is, perhaps, the best example of the throbbing pulse, beating quickly, with a peculiar throbbing sensation, especially in any inflammatory action in the vascular structures of the feet, making the circulation difficult. A slow pulse is characteristic of cerebral disease, but if only twenty-eight or thirty, you may say at once it is cerebral disease, but if it is accompanied by a comatose condition, then it is indicative of this disease. The intermitting pulse is found where the animal has suftered from some debilitating disease, as influenza, stran- gles, catarrh, etc Although it must in some cases be looked upon with suspicion, it is not generally very alarming, but if there is a change for the worse, and this pulse, it is unfavorable. The fluttering and almost imperceptible pulse, indicates great changes in the system, as in the latter stages of enteritis, pleurisy, pneumonia, etc., especially in enter- itis ; if a case where the pulse is 40, 50 or 60 per minute, and changes, and runs up to 80 or luO, and becomes indistinct, it is indicative of approaching dissolution. These are the varieties of pulse, and due to the manner in which inflammation attacks the various parts. The pulse varies from 25 to 125. You may meet with a case at 125 where it may recover, but higher than this will no doubt prove fatal. General Treatment of Inflammation. — The aim should be to diminish the inflammatory action, or if exudation has taken place, to further its removal ; endeavour to find and remove the cause, for without removing the exciting cause, treatment would be of but little value, as in case of a nail in the foot, or from any irritant being lodged in the muscles of the body, or in conjunctivitis and ophthalmia Keeping the animal quiet and keeping the inflamed part in a state of rest, also materially assists your treatment. Put the animal in a clean, well-ventilated box, attend to the diet, give easily digested food, plenty of cold water, etc. These are valuable adjuncts. Solicit the action of the bowels by injections or laxatives, as the case demands. Medical Remedies may be either local or constitutional — constitutional given internally, the local applied to the part affected. The constitu- tional acts upon the whole system, and also upon the parts aft'ected. Blood-letting was at one time regarded as the great sheet-anchor of treating inflammation. Bleeding was performed for everything and for nothing. They bled periodically, whether sick or well. The question was once asked a person who was bleeding an apparentlj' healthy ani- mal, "What did you bleed him for?"' " For a shilling, sir," was the answer. But we meet with some cases where it is attended with benefit, as in a vigorous animal, and should not be altogether discarded. But you may bleed an animal almost to death, and still not relieve the in- flammation Blood-letting may be local or general. The local is some- times a benefit, as in a swollen eyelid in human practice. And to do any good it should be drawn quickly and from a large vein — the fleam being the safest way, and the jugular vein being that usually chosen. The amount that should be taken is hard to say, but watch the effect, and if the pulse alters in any way, then stop the flow. Cold applications are useful, and are used extensively in local inflammatory action, and at 14 CAUSES, SYMPTOMS AND TREATMENT OF certain seasons of the year are preferable to warm. They act by con- tracting the vessels, and, if judiciously applied, are of benefit. But you must apply them with care, for I believe too much ice, or ice applied too long, may do more harm than good. I believe they will prevent exuda- tion to a certain extent. Applying cold water from the hose is some- times of benefit, but it must be applied for some time to be of use. Hot applications are beneficial, and sometimes preferable to cold. If there is severe pain, then apply warm water, which acts by causing increased debilitation of the vessels and soothing the parts. Hot water is an excel- lent fomentation, or you may use medication, or use blankets warmed by the fire. Either hot or cold applications, to be of benefit, must be kept up for some time, and there is difficulty in this, as we order so and so done and it is not done. Purgatives are useful in inflammation — the best being aloes for the horse, sulphate of magnesia for the cow, and syrup of buckthorn and jalap for the dog. They relieve by moving the bowels, and also some fluid portions of the blood. They produce irritation and increased peristaltic actions of the bowels. Although there is great benefit from purgatives in some diseases, such as laminitis, constipated state of the bowels, in some others they must be used with great caution, as in inflammation of the lungs. Aloes is generally best given in the solid form, as, if in a fluid, some is lost. Sedatives are useful in the treatment of inflammation, and act by means of the nervous system. These are aconite (perhaps the best), digitalis, belladonna, calomel and tartar emetic. Diuretics are extensively used, more by us perhaps than in human practice. Human practitioners can act upon the skin, but we cannot to the same extent ; but we can act upon the urinary organs. The best diuretics are neutral and alkaline salts, nitrate of potash, etc. There is an increased amount of fibrinne, and these tend to counteract this condition. Opium is another valuable remedy in certain inflamma- tions — the great sheet anchor, so to speak, if there is violent pain— or morphia, given hypodermically. Give cold water ; it tends to improve the condition of the blood, especially in pneumonia, congestion of the lungs, etc. Give cold water frequently. It is one of the essential ingre- dients of the blood, and it is a great mistake to limit the supply. ORGANS OF RESPIRATION. The horse breathes only through the nostrils. These organs are, first, nasal openings ; second, nasal chambers and sinuses ; third, pharynx ; fourth, larynx ; fifth, trachea ; sixth, bronchi ; seventh, bronchial tubes ; eighth, the lungs. There are two nasal openings, the right and left, and are divided by the nasal peak, to which is attached the nasal car- tilage. External is the skin, internal to it are the muscles. The internal part of the chambers is covered with a fine thin covering. Superior to the inferior commissure is the false nostril ; the small opening inside of the nostril is the ductus nasi. The nasal chambers are separated by the cartilaginous septum nasi. It separates the right from the left chamber. In each nasal chamber we have two bones, called turbinated bones, which divide the nasal chambers into three parts ; so the chambers are not one continuous chamber. Each chamber is lined with mucous membrane (in fact all open chambers are lined with mucous membrane, this is called schneiderian or pituitary membrane ; it is continuous with the skin, and also with that of the several sinuses. The sinuses of the head are the frontal, superior maxillary, ethmoid and sphenoid. They are, DISEASES OF DOMESTIC ANIMALS. lo perhaps, for two purposes — to lighten the head and protect the lungs, The larynx is a musculo cartilaginous box, held in its place by muscles, bones and trachea. The cartilages of the larynx are cricoid, thyroid, epiglottis, two arytenoid and two cuneiform. The cricoid surrounds the trachea ; the tyroid is shieldlike ; it is called Adam's apple, the epiglottis or pot-lid ; the arytenoid is ewer shaped ; the cuneiform are false vocal cords internal to the larynx. The muscles of the larynx regulate the passage of air into the lungs. The glottal opening is in the centre of the larynx. The mucous mem- brane of the larynx is extremely sensitive. The larynx is well supplied with nerves, superior and inferior laryngeal. The trachea is composed of a number of incomplete rings which are attached by ligamentous attachment ; the muc )us membrane of the trachea is not so sensitive as that of the larynx. The trachea terminates in the right and left bronchi. Catarrh means a discharge from any mucous membrane. We may have catarrh of stomach, bladder, etc. Nasal catarrh means a discharge of mucous membrane of the nose and sinuses of the same ; first there is slight congestion and a peculiar dryness which gives way to a discharge of a watery nature, which if it runs on soon becomes thick. Causes. — The most common, perhaps, is exposure, or sudden changes of temperature ; standing in a draft ; having been driven when in poor condition, when system is weakened. Symptoms. — Slight dulness ; may not take food very well : coat staring to some extent ; pulse not much affected ; throat becomes sore ; after congestion passes oft' exudation takes place, followed by the discharge, and it may be very profuse, but it must not alarm you. There is gener- ally impaired secretion of mine ; breathing not much aft'ected in many cases. We have also a discharge from the nose in other diseases, such as influenza, glanders, etc. Treatment is simple. Give plenty of good, pure air ; place in a com- fortable box, well ventilated, and if the weather is cold blanket him accordingly ; use nitrate of potash, two, four or six drachms, two or three times a day. One or two ounces nitrous ether, with one or two ounces laudanum, may arrest the attack in the first stages, or you may have to give a dose of purgative medicine, but be very careful in giving purgative medicine in diseases of the respiratory organs. Bathe the nostrils with warm water and allow him to inhale the steam. Just allow it to pass into the nostrils, or use a nose bag, but allow plenty of pure air. If a cough is present, stimulate the throat with equal parts of ammonia, turpentine and oil, but if it is a very thin-skinned animal, you may use less turpentine and ammonia and more oil, or mustard may be used. Give laxative food, but do not let the animal run down in condi- tion too much. If the discharge from the nose runs too long, it may be arrested by the use of sulphate of iron, one or two drachms two or three times a day, or chlorate of potash, one or two drachms two or three times a day. Larynigitis^ sore throat. It is first a congestion and then inflamma- tion of the mucous membrane of the larynx. There is often an effusion into the sub-mucous tissue, when it is called odematous larynigitis. Causes. — Similar to those of catarrh, exposure ; a number of horses kept in the same stable, or being kept in underground stables, or it may be an epizootic disease ; that is, it attacks a number of animals at the same time, and it is quite difficult to say just what causes it in this way. It may occur from injury from balling with a stick, etc. Symptoms.— ¥ir TREATMENT Ot mesenteric glands. It is rare in the lower animals. It is sometimes a sequel of a debilitating disease, as strangles in very young animals. In young cattle it is quite common. In this disease the mesenteric glands become involved, and prevent the introduction of the chyle into the sys- tem, and the result is a gradual decline. It is due to tubercular degen- eration Symptoms. — Great emaciation; feces pass in semi-digested state ; pulse weak, not very quick, but quickened to some extent ; belly pendant, or pot-bellied ; muscular system soft and flabby. The animal dies a gradual, lingering death ; abdominal pain in last stages. Treatment not very satisfactory. Support the stiength as well as you can by a generous diet. Give iodide of potash ; feed upon the best of food. Iron is beneficial; cod liver oil has been recommended. I have noticed this from .strangles, it usually terminates fatally. Post mortem reveals tubercular degeneration. There may be tubercular deposits in the lungs or some other organ as well. Anasarca may come in connection with the limb, due to an accumu- lation of serous fluid. It comes from a percolation of the fluids into the flesh. It may contain a small amount of albumen. There are two kinds — inflammatory, and from venous obstruction. They receive distinctive names from the place in which the fluid accumulates. If in the thoracic cavity, it is hydrothorax. If in the cranial cavity, it is hydrocephalus. If in the tunica vaginalis, it is hydrocele These may come from inflam- mation, or venous obstruction or debility. If from venous obstruction, they will pit upon pressure. It is sometimes found in the human, from standing up for a considerable time ; not due to any particular disease, but may be symtomatic of some other disease, such as diseases of the lungs, kidneys and liver, in which cases you will have well-marked symp- toms in the organ affected, except in the heart. It generall}' occurs in the hind leg, and a term frequently applied to it is stocking. Heavy horses are more subject to it ; legs swell at night ; and it may come from well marked causes, as washing and not drying; exposure and hard work ; horses kept in the stable during winter, and then made to do a hard daj^'s work in the spring, etc. Improper bandaging may produce it, and it is good practice to see to placing a bandage yourself, as it may be put on too tight, and so do more harm than good. Sjm/>^om5.— Swelling of the limb, and if not due to inflammatory action, there will be no pain, but in some cases there is some stiffness, and in some thf^re is none. It is common in the spring. Treatment. — Keep off work, and give a laxative ; also change the feed, and give a good diuretic ; three drachms sweet spirits nitre, three drachms resin, and sutticient amount of soap, is a good diuretic ball. If you can- not keep off work, hand-rub the leg well, and bandage, but not too tight. Or you may give more powerful remedies— white liellibore, one scruple to one-half drachm, or even one drachm. In cases where there is much swelling, give nitrate and iodide of potash ; but do not push diuretics too far, but give one or two doses, and then have recourse to tonics, regular exercise, and get the system in a good condition ; may give iron in the morning and diuretic at night, or vice versa. This swelling may have a great tendency to become organized. It is more likely to occur in a very old animal. Blisters are entirely inapplicable in such cases. Iodine ointment may be used in some cases, if you just wish to stimulate absorp- tion to a certain extent. Another cause is undue pressure upon the limb. Injury to one foot, and standing upon the other has a tendency to produce it. Swelling* ol' the Sheath i.s common. You can generally get rid of bISEASES OF DOMESTIC ANIMALS. Cl it by two or three doses of diuretic medicine, or it will geb better when the animal is able to exercise. THE EYE. The eye is the immediate organ of vision. It is globular in shape, and is composed of a membraneous sack, in which is contained transparent humours of different densities. The external tunic is the sclerotic and cornea ; the sclerotic covers about four-fifths of the eye. The second is formed of the choroid and iris, a continuation of which forms the ciliary processes. The third or innei^is the retina, which is a nervous coat. The sclerotic is formed of white fibrous tissue ; to this are attached the mus- cles that move the eye. The cornea is transparent, and covers one-fifth of the eye. It fits into the sclerotic as a watch glass fits in its place. The choroid coat is made of three layers, external, middle, and internal. The external vena consists principally of minute veins. The middle layer is formed of the ciliary arteries, forming a plexus. The internal is a pig- mentary layer. The iris is a diaphragm or curtain suspended in the aqueous humour. It varies in color in man ; in the horse it is generally of a light brown color. It is composed of two separate sets of fibres, cir- cular and radiating. If the circular contracts, it contracts the pupil. This is involuntary muscular fibre. In foetal life it is covered by a pupil- lary membrane, which becomes absorbed before or soon after birth. The pupilliary opening is in the centre of the eye, and is elliptical or oval in the horse. There are several humours in the eye ; aqueous, vitreous and crystalline lens. The aqueous is in the anterior and posterior chambers of the eye. It is principally water, and is secreted by the membranes which line the chambers. The vitreous humour occupies about four-fifths of the interior of the eye, and is enclosed in the hyaloid membrane. The crystalline lens is situated between the iris and vitreous humour. It is transparent and bi-convex. Its use is to bring rays of light to a focus. The name given to the small dark bodies just above the pupillary openings is corpora nigra. Ihe retina is an expansion of the optic nerve It consists of nine or ten different layers, com- posed of cylinders, cones, etc. The vitreous humour is about the con- sistency of thin jelly. It is covered by the capsule of the lens, and opacity of one or both of these gives rise to cataract. The appendages of the eye are, eyebrows, eyelids, conjunctiva, muscles, membrana nicti-^ tans, and the lachrymal apparatus ; eyebrows are only rudimentary in the horse. The membrana nictitans tends to throw oft' any oftending matter that may get in the eye. This is composed of fibro-cartilage, and is for the protection of the eye, especially so to those animals that can- not protect it by using the fore extremeties. The conjunctiva is the lining or mucous membrane, and it is continuous with the skin, and is reflected over the sclerotic, and firmly adheres to the cornea. The lach- rymal apparatus is formed of glands and lachrymal ducts, sack, and a small opening in the lachrymal sack. This apparatus secretes and gets rid of the tears, and is called a conglomerate gland. These tears are carried down into the lachrymal sack, pass into the lachrymal duct and down into the nasal opening. In the superior and larger of the eyelids there are glands or ciliary follicles. They secrete a fluid which prevents the adhering of the eyelids during sleep. The muscles of the eye are eight, five of them straight. They are, retractor, abductor, adductor, depressor and levator ; one in the horse and not in man, that which pulls the eye back upon the cushion of fat. There are three oblique muscles — superior, middle and inferior. 62 CAUSES, SYMPTOMS ANt) TREATMEN'T OF DISEASES^OF THE EYE. Simple Opiithalmia, Conjunctivitis, Tranmatic Oplitlialmia.— The first name is to distinguish it from periodic ophthalmia. It is inflammation of the conjunctiva, and the term expresses the pathology. It is more or less inflammation of the superficial structures of the eje, and may affect the cornea. Periodic ophthalmia first affects the internal structure, and extends outward. Causes. — Result of direct pr indirect injury — injury to the orbital pro- cess without any direct injury to the eye May set up inflammatory action and extend to the eye ; or, from wjiip lash, grain of sand, hay seed, which the membrana nictitans does not remove. It may be pro- duced by extreme cold, or extreme heat and sunshine, or extreme foul air. Extremely dark stables may also produce periodic ophthalmia and amaurosis. It may occur in an enzootic form, If it so occurs, it is generally due to very hot weather. Direct or indirect injury is the most frequent cause. Symptoms. — There may be partial or complete closure of the eye, according to the cause ; a copious secretion of the tears from over-stimu- lation of the lachrymal apparatus ; too copious to pass through the lachrymal duct, the eye becomes sw^ollen. The upper eye-lid may present a greatly irritated appearance. Exposure to the light reddens tbe con- junctiva These are followed by more or less exudation bet\veen the layers of the cornea If caused from injury, this exudation takes place from the seat of injury. It is not due to a film, but due to an exudation between the layers of the cornea. In some cases tbere is some constitu tional disturbance. Pulse increased just a few beats, but it is not a general thing. Tbe eye presents an irritated appearance very quickly, and is sunken in its socket. The inflammatory action is more aggravated than in periodic ophthalmia. Treatment. — If you think it is conjunctivitis, make a very careful examination. There is no great difference between this and periodic ophthalmia. Endeavour to detect the cause and remove it, or other remedies will be of no benefit. You may be able to remove it with a feather or handkerchief, and you may have to use forceps. When the source of irritation is removed, the irritation generally ceases, but you may hasten resolution to a certain extent. If standing in stable, with cattle, etc., remove the animal. Apply fomentation to the eye, and keep tip for some time ; place the animal in a darkened box. If suffering to any great extent use an anodyne liniment, laudanum water and a little sulphate of zinc, and a little acetate of lead might be added, but it is not to be used in all cases, and belladonna is better in some cases than laudanum, especially if there is a tendency to inflammation of the iris, for it has a peculiar effect upon the iris, and may prevent adhesion. Use atropine, two or three grains to a quart of distilled water, or you put a small particle of it in the eye. This will relieve most cases, but there may be some irtication left, although you have removed the cause, and there may be small ulcerated spots upon the eye, and it may be necessary to use a solution of nitrate of silver, five grains to an ounce ot water, or even ten grains to an ounce of water. You may apply it by means of a fuiall syringe, camel's hair brush or feather. Just touch the ulcerated spots, to stimulate and bring on a healthy action. In cases where the cornea is ulcerated, and even a fungus growth, you may have to touch it with a pencil of nitrate of silver. Y'ou may use iodide of potassium ; but there is no use for very powerful remedies. In almost all cases of inflammation of the eye, there is a tendency to the IJIHEASES OF DOMESTIC ANIMALS. 63 formation of a film over the eye. In say twenty-four hours, if the irrita- tion has been removed, this will often be absorbed without anything being done, but there are many remedies recommended for getting rid of this. Bathe with cold water, and stimulate with iodide oi potassium and nitrate of silver, not too strong, but just gently. in case the exudation is broken up to a certain extent, and there is a ten- dency to abrasion of the cornea, stimulate every day or two, and keep this up for some time ; this may come from conjunctivitis in a very mild form. When the film first shows itself, the owner is much alarmed. Iodide of potassium is used, five grains to an ounce of water, and it may be necessary to give diuretic or purgative medicines. Belladonna may be given internally and applied round the eye, but it is generally best to place directly on the eye. Treatment for the dog is tonics, good feed, and, stimulate the eye with the remedies given. One or two applications will generally suffice. If you have a case of conjunctivitis that has come on very slowly, examine such a case very closely. There may be ulcerated spots. The remedies given increase the irrita- tion for some time, but this will soon be relieved. Eyes are sometimes injured by severe caustics, pounded glass, alum, etc. In conjunctivitis you wil^ find benefit from bleeding in the angular vein, and if it does no good, it will do no harm. In an acute attack the animal should be sparingly fed for a few days. There is no better remedy than belladonna. It may be necessary to scarify the eyehd in some cases. If it has received a severe injury, then apply fomentations. Periodic Optlialuiia. — So called because it occurs periodically. It is not very uncommon in this country, and it differs from simple ophthal- mia by the internal structure being first effected, coming from something in the constitution. It is a constitutional affection, operating on the organ of vision, first attacking the internal structure, then involving the whole of the anterior part of the eye, and sooner or later terminatirjg in partial or complete loss of vision. Many other definitions might be given. Constitutional ophthalmia, due to something in the system. Hereditary, due to some hereditary influence. Odontalgic, supposed to come from something the matter with the teeth. According to some authorities, wolf teeth affect the eyes. But I think they do not in any way affect the eyes. The fifth pair of the nerves supplies common sensa- tion to the eyes and teeth, and wolf teeth irritating this, affect the eye. But this is not held by veterinarians as a general thing. Another form is gouty ophthalmia, due to something in the system similar to gout, and acting upon the eye. This disease has been long known and great attention paid to it. Other names, moon-blindness, lunatic ophthalmia, supposed to be influenced by the moon. It was supposed that they could see readily at some periods of the moon, while at others they could not. I think it is more common here than in Britain, perhaps owing to the extremes of heat and cold. But there are other causes which operate in causing it, and it receives various names, arising from the various symptoms produced. Pathology is not very well known at present ; perhaps a great many cases are due to hereditary influence. It was once considered the bane of horse flesh. Breeding from sound horses has done more to eradicate it than anything else. '' Like begets like." Causes. — Certain excitants, extremes of heat and cold, are prominent causes ; dark and ill-ventilated stables ; working and neglecting the horse, but in most cases there exists an hereditary predisposition. I do not say in all ; there may be exceptions. Lexington, a well-known horse, suffered from periodic ophthalmia, supposed to be the result of hard work, and his progeny is affected to a considerable extent. It may not 64 CAUSES, SYMPTOMS AND TKEATMliNT Oi' attack the first, and then attack the second or even the third generation. In such cases it is easily pioduced. Breed only from sound, healthy animals. I would not breed from a horse, no difference what his con- formation might be, if affected with this disease. Pathology. — A constitutional affection, which localizes itself in the organ of vision The inflammatory stage may pass off, even without remedial aid, and then it takes on ihe second stage of the disease. Symptoms. — Ver}' well marked in many cases, together with the history of the case, the eye having been affected some time past, but got better, then worse, etc. ; was taken suddenly ; increased secretions of tears ; was put in the stable at night all right ; in the morning was suffering from an irritation of the eye, supposed to be an injury ; the eye weak, and cannot tolerate the light. Upper eyelid droops to some extent ; eyeball retracted. This can be noticed especially if but one eyeball is affected ; you cannot always hotice this unless you expose the animal to the light. Conjunctiva reddened and congested to a considerable extent, but not so much as in simple ophthalmia ; a kind of brownish-red, hazy appearance of the cornea. In periodic ophthalmia, this opacity begins at the circumfer- ence and radiates toward the centre. As it advances the eye loses its transparency, becoming of a yellow or reddish appearance. Th« circula- tion may be altered to a slight extent; may be slightly quickened; animal somewhat dull, dulness not very well marked, however ; discharge of tears. After a few days the inflammatory action gradually subsides, the products of inflammation become absorbed, irritation gradually ceases, colour changes to a grayish colour, and the eye may regain its apparent natural condition, but not in all cases. It may have slight opacity of the crystalline lens, and produce cataract, but this does not occur from one attack. I think in most cases there is some weakness remaining, although the irritation oppears to have subsided. The eye may look smaller, and is more affected with the light. It will be retracted in the socket. Slight change of the weather will cause a slight weeping of the eye. Another peculiarity of this disease is shifting from • one eye to the other, not from sympathy ; no sooner is one eye relieved, than the other is attacked. In such a case you may make up your mind that you have periodic ophthalmia. Apparent recovery is very rapid in some cases. To all appearance the animal is perfectly sound, but it comes again with greater severity, and it continues to recur at valuable periods, from three days or weeks to months, or even a year, and we have some cases on record of animals having one attack and never having another, but there is no particular time at which it is likely to recur. After cataract is formed, there may be inflammatory action in the eye, but after the eye is completely disorganized, as is sometimes the case, inflammation does not affect it further. As to the duration of the disease, it may vary from three to four up to ten or fifteen days. It is sometimes developed in the acute form, but generally in the sub-acute form. An animal may suffer from one or two attacks, and appear pretty well without any well marked cataract. It has been noticed that horses working in coal pits, under ground in dark places, suffer frequently from amaurosis, and also from ophthalmia. The mode of using being the exciting cause. Treatment. — Is anything but satisfactory, and it sometimes grieves the owner to be told that sooner or later his animal must be- come blind. The irritation may be palliated by rational treatment. Place the animal in a well-ventilated and darkened box ; but you may have to allay irritation and keep the animal at work. Give a moderate dose of purgative; it acts upon the system and allays DISEASES OF DOMESTIC ANI31ALS. 65 irritation ; bathe with tepid water and laudanum. You may give ex- tract of belladonna in drachm doses, and rub along the eyelids, or you may use the active principle in the eye, but it is not necessary unless the iris is affected to a considerable extent. There is benefit in nitrate of potash and iodide of potash. Iodide of potash and colchicum ons drachm each once or twice a day. If the acute symptoms have passed off, the clearness may be hastened some by iodide of potassium and nitrate of silver. Treatment does not do much but palliate the disease. Apply something to allay the irritation of the eye— warm water, or in some cases cold Water. If tbe iris is much affected, I think belladonna is the best thing that can be used. Blisters have been used to a great extent, but are not of much benefit. A little counter-irritation may be of use ; first subdue the inflammatory action the best you can, and expedite the removal of the products of inflammation. In most cases it terminates in cataract. Cataract means a breaking up. Cataract may be capsular or lecticu- lar ; the lens may be entirely destroyed, or only a slight deposition which impairs vision to a slight extent. May have cataract, opacity of the lens, or capsule, and so prevent the passage of light. Cataract is the result of periodic ophthalmia, but it may re'sult from some other cau?e, or without any observable cause, and may be due fo some nervous in- fluence. You may have cataract without any noticeable irritation at all. If capsule only is affected, it is called capsular. If the lens, it is lenticular. It is a pearly white deposit. Result of Opthalmia is cataract. It is a term applied to what we call opacity of the crystalline lens. Either the lens itself or the capsule in- vesting the lens, and thus it gets different names, as capsular, lenticular, and capsular-lenticular. It is the result of ophthalmia, but it may occur independent of this, from injury, or without any irritation of any consequence whatever. But this is not a common occurrence. It is generally due to repeated attacks of ophthalmia. There is true and false and spurious cataract. The true is opacity of the crystalline lens, its capsule, or both lens and capsule. There is an opaque deposit of lymph pus or blood on the anterior capsule It m^y involve the entire lens, or only a part of it. There is a pearly white deposit in the anterior part of the eye. Cataract is said to have been absorbed, but it was T think, not true cataract, but false— animal having suffered from injury or something which give rise to effusion, but it was a spurious form. Cataract is occasionally congenital, i.e., at or soon after birth. If born blind, it is generally in both eyes. Complete cataract is incurable. Symptoms. — If it is of any tize and involves the crystalline lens, it is easily detected. According to its size and position, there is either j^artial or complete blindness. Cataract may be present to some extent and not produce complete blindness. If small, it is not so easily detected — it may le overlooked. If it is small, the pupillary opening is contracted if exposed to the rays of light. If it is completely formed, the iris loses its natural condition, and does not contract. The pupil and the retina may at the same time lose its natural condition, and you have amaurosis and cataract. It requires some experience to detect it If you are examining a horse, take him suddenly from the dark to the light, and watch closely If the pupil contracts quickly, there is suspicion of some irritation. Take a black hat and shade the eye, and notice the pupillary opening, and you may be able to detect it. I3ut if you still have doubt, place the animal in a dark box, and let him stand fifteen minutes, and then take an artificial light and bring in front of the eye, and watch, and you will sometimes be able to detect this white pearly deposit, but be sure 66 CAUSES, SYMPTOMS AND TREATMENT OF that it is not a retlection you see. There is another way ; by noticing the images reflected in the eye. ^here will be three — one reflected from the corn* a, one from the anterior surface of the crystalline lens ; these two move with the light and are upright. The third is reflected from the posterior surface of the lens, and is inverted, and moves in an opposite direction from the light and the other images, and you may see these where there is a slight disease of the vitreous humour. These images appear as stated in a sound eye. You may act upon the animal with belladonna, for the purpose of examination. You may detect a small speck not larger than a pin's head. With some practice cataract can be easily detected. Watch both eyes and if one contracts more than the other, it is symptomatic of cataract. It is a disease which may be quickly developed. Prof. Williams gives an account of one case that formed in ten days. But you are generally' safe in giving your opinion that it has been present some length of time, if it is well formed. Treattncnt — Very little, if anything, can be done, unless it is done as an operation, and such an operation is not attended with much success in the horse, as the light must be regulated by means of glasses, which would be ditlicult. It is possible in a case where there is a deposit of lymph, to restore the eye to its natural condition. If cataract is form- ing, you may give some of the remedies already recommended. Inflam- mation ceases after cataract is formed. Another disease of the eye is Amaurosis. — It is a diminution or complete loss of vision without any visible effect in the eye. It is paralysis of the optic nerve and its terminal expansion. It may occur independent of any irritation, and is usually incurable. It is sometimes found in connection with parturition. It may exist with disease of the digestive organs, and frequently co-exists with cataract, and may result from injury to the brain or optic nerve. Exciting Causes. - Standing in dark stable ( similar to coal pits ) ; may occur from a comj^aratively slight injury, as striking the head against something. There is nothing to obstruct the passage of light to the posterior part of the eye. You have amaurosis in severe hemmorrhage. It occurs in bleeding a subject. It may be quickly developed. It has been noticed to occur from secondary hemmorrhage from castration. Symptoms. — A dilated pupil is the principal symp'om. The pupil loses its elliptical form and has a glassy appearance ; hence it is called glass-eye. Both eyes are generally affected. If there is no other disease present, the animal carries his head high and steps high, and from his action is sometimes called a star-gazer. Perhaps just at a glance you cannot detect it. Try the artificial light ; put him in a dark box and bring a lighted candle near the eye, and the pupil does not contract. Some good judges sometimes get bitten with this. You cannot detect it just at a glance, but after some time a change takes place. You have generally a pretty full eye. Treatment — Incurable if of long standing ; but if just due to some slight injury to the brain, or derangement to the digestive organs, etc , try iodide of potassium, belladonna, and then try nerve stimulants. A horse is better blind than with impaired vision. Another disease of the eye, of a very serious nature, is Cancerous or Bleedinu: Fundus. — Medullary sarcoma, or bleeding cancer. It is of a malignant character. It is a spongy inflammation of the eye. This disease generally arises in the ball of the eye, but there may be exceptional cases, and it may come from injury, but most cancer- ous growths come from constitutional derangements. A slight exudation might cause it. In the first stage the eye becomes changed ; there is opacity of the crystalline lens ; this may, by and by, become absorbed. DISEASES OF DOMESTIC ANIilALS. 67 This growth makes its appearance in the posterior part of the eye. It becomes larger and involves the entire eye and surrounding structures. It may grow and hang down over the cheek, and give the animal a very unsightly appearance. It may produce caries of the bones near the eye. Treatment. — You may effect a cure in first stages. If the eye ball is destroyed, remove the fungus and the eye-ball, which may bs attended with success. But in other cases it will grow again quickly. There will be hemorrhage, which can be controlled by styptics, and it is not a bad practice to touch with actual cautery ; then use styptics, astringents, etc. If this is removed in the early stage it may not be reproduced, and if reproduced it may not be for some time. It occurs in cattle, and the same treatment is to be used. lujury to the cornea might excite it. There is a bulging of the cornea, about the size of the end of a finger. It is very vascular ; when cut into, it bleeds readily. As well as local, give constitutional treatment. After cutting it out, you might give a few doses of medicine, tonics, etc. Filaria Ocnli, Strongylus Eqniuiis. — There is scarcely any tissue of the body exempt from parasites. They are found in the liver, testicle, brain, bronchial tubes, kidneys, lungs, muscles, the eyes, etc. It is noticed in the eye, in Canada and the United States, but it is very com- mon in India. It has never been noticed in England. This parasite is most likely to be found where the animals are grazing on wet land, or in wet weather. They get into the eye by means of the circulation. The ovum is taken in by means of the food or drink, gets into the stomach and is carried through the circulation until it finds its way into the aqueous humour of the eye. May grow to the size of one half inch to two inches in length; sometimes set up considerable irritation, and this gives rise to more or less opacity of the cornea. It is not generally entirely opaque. These worms move about in a lively manner ; appear- ing near to the cornea, and then passing away and disappearing to a certain extent. You should have no difficulty in detecting this by a careful examination. It might be mistaken for a shred of lymph, but in a short time it removes and again appears Symptoms —More or less irritation of the eye : may be noticed by the owner or attendant, and you have some history of the case. There is a haziness of the eye, but if you look for some time you will see something inside moving about, first one way and then the other. It has been described as an eel in water. If you meet with this you must remove the worm, for if you allow it to remain, it will in most cases destroy the eye. Whether it is advisable to remove it while the irritation remains, or wait until it subsides, is a controverted point. I think the sooner it is removed the better. Cast and secure the animal, elevate the head to a certain extent, and with a guarded lancet make an incision and allow the aqueous humour to escape, and with it the worm in most cases. There is no great danger to be apprehended ; keep the animal quiet and apply cold to the eye. You might give laxative medicine, good food, etc. A slight speck remains sometimes where the incision was made. If you operate on a case, and the aqueous humour escapes and the worm does not, just leave it alone till the aqueous humour is reproduced, and the worm may be absorbed, or you may take it out, but it sets up considera- ble irritation. It is better to let it alone until the aqueous humour is reproduced, and then operate again. Some operate without throwing the animal, but I think it is not best, you may make a larger incision than is desirable. The lancet used in human practice is the most appli- cable. Keep in a darkened box, and if slight opacity is present, you may use iodide of potassium internally. bo CAUSES, f^YMPTO.MK AND TREATMENT Of (glaucoma, —If there is either amaurosis or cataract, you have this condition present, but you may me6t with a case where this is seen with- out any other disease. The vitreous humour becomes hardened, more or Jess, and a dilated pupillary opening ; big head or ostero sai'coma has a tendency to profluce it. Little, if anything, can be done for it. If it is in an old animal from natural decay, as is generally the case, nothing can be done. The eye ball is occasionally injured, frequently from a punc- tured wound, and letting the aqueous humour escape. If the vitreous humour or crystalline lens escapes, vision is totally destroyed. The aqueous humour will be reproduced, but there may remain a slight opacity of the cornea. Treatment must vary as to the severity of the injury. If a punc- ture is received and the crystalline lens is injured there will be great pain present Foment, use belladona, give a purgative, and may give an opiate ; poultice judiciously with linseed meal, bread poultice, etc You may tind a fungus growth, from puncture or other injury, and you can generally get rid of it with a solution of nitrate of silver. But this may not be strong enough, and you will have to touch with a pencil of nitrate of silver. After this you may have a small speck, and if there is exudation around the speck, you may relieve by judicious stimulation. In some diseases or in- juries to the eye, the parts do not heal up, a discharge of matter takes place, and it is better in some cases to remove the tissue of the eye Another condition of the eye-ball is dislocation, more likely to occur in dogs than in other animals, from fighting with other dogs and cats. If it does occur in the horse, the tissues are generally lacerated. If you see such a case soon after its occurrence, the eye may be replaced and remain placed, if done before the swelling is too great. After replacing, apply fomentations, as to other injuries to allay irritation But if it is down over the cheek and much swollen, the only thing that can be done is to remove the eyeball, and treat as an injury. If it requires much pressure upon the eyeball to replace it, you can just snip the outer angle of the eyelid, and after the ball is replaced just put a stitch in the cut and then use something to allay irritation. Melanotic deposits may take place in the eye. They are commoner in gray horses than others, but may occur in any, and they may occur in any part of the body ; if in the eye, there is a reddened condition of the eye. Nothing whatever can be done for this. Ectropium or Eversion of the Eyelids , Entrnpium or Inversion of the Eyelids. — Eyelids become torn and injured in many ways. If you find the lid torn and injured be as conservaiive as you can and bring the parts together nicely, using a suture of silk thread or wire. Although it is prettv well detached, bring the parts together the best you can and do not allow any part to hang down, or it will bring on suppuration, and if any part is removed, it interferes with the animal to some extent. After-Treatment. — Allay any irritation. Keep the animal quiet, and secure him so as to keep him from rubbing, by tying to both sides of the stall Keep up the application of either cold or warm water, but cold water generally has a better effect than warm. There will be more or less opacity of the cornea, but when the irritation is allayed, the opacity will disappear. If a large portion of the lid is torn loose and nothing has been done for it until suppuration has taken place, and it is much swol- len, then scarify and treat properly, and there is a possibility of recovery. In some cases you will have to remove the partially detached portions, but do not be too hasty about cutting. The Meinbrana Nictitans sometimes become inflamed in connection 1)ISEASES Oi DOMESTIC ANIMALb. 60 with ophthalmia, or it may become irritated without this. This inter- feres with the secretion of the tears passing into the lachrymal duct, and they flow down over the cheek. Treatment. — Applications of cold or warm water. Cleanse nicely and touch with mild astringents Sulphate of zinc, five grjins to one ounce of water, and about one-half drachm of laudanum, which you may inject with a small syringe This membrana nictitans sometimes becomes dis- eased, until we have to remove it from the eye. If it is ulcerated but slightly, try a caustic upon it, such as nitrate of silver, and if this does not do, it may be necessary to remove it Lachrymal Ducts ami Passages. — When the tears are secreted, they pass into the puncta lachrymalia, then through the lachrymal canals, and enter the lachrymal sack, and then into the nose, through the lach- rymal duct. These lachrymal passages become diseased, obstructing the flow of tears. This is due to various causes ; due to an enlarged condition of the caruncula lachrymalis, or from the thickening of the lining mem- brane of the duct. This thickening may result from various causes, and may result from catarrh, or from a foreign body passing through some opening into the lachrj-mal sack, and interfering with the passage of the tears through the duct. Symptoms are well marked, and there is not much diflSculty in detect- ing it. Nostrums put in the eye w^ll have no effect if the cause is within the duct ; if from the thickening of the mucous membrane, the tears will pass down the outside of the cheek and destroy the hair to some extent, and there may be a purulent discharge from the inner angle of the eye ; the eyeball will be irritated. If the obstruction is down in the duct, the lachrymal sack may be enlarged, and if this is the case, if you lift the head, it sometimes causes this discharge to flow more freely. Examine as to the anterior opening of the duct, inside the nose. Treatment.— li irom obstruction, remove it; and the best way is to inject the duct with tepid water ; then with a solution of sulphate of zinc ; and it is better injected from below than from the upper opening. Take a glass syringe with a long nozzle, and the fluid may pass through easily ; and it may not jtass just at once, but keep up injections for some days. You may use carbolic acid, but no strong application is useful Keep the eye nice and clean. Some authorities recommend the introduction of a probe. If you fail from lower opening, then try the upper, but the latter is more liable to irritate the eye. It is sometimes necessary to throw the animal in injecting from the upper opening. Congenital Malformation, in which no duct is formed It may be formed through the bone, but not through the soft tissues, or only the mucous membrane is left to obstruct it ; there will be a discharge from the eye ; lift the head and there will be this purulent discharge from the lachrymal sack An artificial opening may be made, and allow the tears to flow through it to the outside of the cheek, instead of out at the eye. If the opening is just closed by the mucous membrane, just make an incision and let the tears pass through the opening into the nose. You may trephine and make an opening from the duct to the outside of the cheek. There may be fistula of this duct, and the depression of the bone may interfere with the flow of tears. The Eyelids may be inverted or everted ; the one turned in, called entrophium. It may occur in the lower eyelid, but not frequently ; oftener seen in dogs than horses When this occurs the eyelashes rub upon the eyeball, which irritate it, and causes a prosecretion of tears and a purulent discharge. Bring he parts into proper position, just by incis- ing a small portion of the skin, and use a suture, and this may suffice, or 70 CAUSES, SYMPTOMS ANU TREATMENT OV you may have to pull the hair from the eyelids or cut a portion out, and bring the cut edges tos[ether with a suture, just dipping the thread in a solution of carbolic acid. We also find just the opposite of this takes place, called octropium, or eversion of the eyelids. It proceeds from various causes ; may proceed from simple ophthalmia Scarifying may bring it to its natural condition, but if it continues it interferes with the animal very much, and makes him quite unsightly. This is also more common with the dog. Treatment. — Varied according to the case; if just due to congestion of the mucous lining, scarify and it may do, but you may have to use caustics - nitrate of silver solution, or even a pencil of nitrate of silver, and if you cannot subdue with caustic, then you excise the parts wath knife or scissors. After treatment bathe the eye nicely, bring the parts as near the natural position as possible. The cornea is mostly affected. ('aninciila Lechrymalis may become enlarged from ophthalmia or injury. The irritation is reduced by fomentations, astringents, etc., but if this does not answer, use the knife or scissors, then allaj^ the irritation. Some use a ligature instead of the knife. There will be opacity of the cornea, which will disappear as soon as the irritation subsides. We notice in horses, the same as in man, that some have better eyesight than others ; some near and some far-sighted. Myopia, being near sightedness ; due to too great a convexity of the eye. The animal may have an apparently well-formed eye, but he will shy, no doubt due to defective vision, which is difficult to detect even in human patients. There is just the opposition of this, far sightedness, which is most likely to occur in old animals and old persons (glaucomatous Condition of the Eye. — The vitreous humour loses its ti-ansparency, and becomes bluish in colour ; osteo-sarcoma may pro- duce it You sometimes meet with a kind of ossification of the eyeball. Melanotic CoDdition of the Eyeball —A condition called staphy- loma, from its resemblance to a bunch of grapes ; it may come from a tumour; use caustic nitrate of silver. There is a bulging and opacity of the cornea, and if the exciting cause continues there is complete opacity of the cornea The remedy is to puncture the cornea and let the con- tained fluids out. Perhaps there are chances of recovery. It is apt to be associated with some constitutional disturbance, and vision is likely to be lost. CONTAGIOUS DISEASES. Variola. — This is a disease that occurs in all domestic animals, and perhaps in wild as well. It is an eruptive febrile disease, so caUed from a peculiar spotted eruptive appearance on the skin. Small-pox has affected many people in many countries. It may be described as an acute febrile disease, and like all febrile diseases runs a certain course, and there is eruption of the skin, either vesi- cular or postular. It may occur in a simple or complicated form ; it is first vesicular and then postular. It belongs to the zymotic class of diseases, due to ccntagium in some form or other. This conta- gium is in either a fixed or volatile form. In the cow it is in a fixed form. In the sheep it is almost as well marked as in cows. It is a difficult matter to say just how contagium may be carried and disease produced ; there are well marked stages. The system re- ceives the contagium in some form or other. There is the incubatory DISEASES OF DOMESTIC ANIMALS. 71 stage, which may be from three to six or nine days. Next is the febrile condition, which may be ushered in by slight rigours, giving rise to quickened pulse, impaired appetite, pains in the loins, back, etc., then eruptions of the skin, small reddish nodules about the size of a pin head, and larger, with a reddened surrounding, then formed into vesicles filled with a clear, transparent lymph. The contents of these become purulent ; then it becomes pustular, and is the second stage. The third stage is a drying up of this purulent mat- ter, and a dark brownish crust is formed, detached, and falls oft" in scales. There is a primary and a secondary fever — the secondary being the more dangerous — caused by absorption of this matter into the system. The fever is more severe just before the eruption becomes complete The blood being in a state to give rise to these eruptions, also gives rise to great fever, intense headache, etc. In man, the second- ary fever is caused by some material becoming absorbed. This is not of a fatal character— except small pox in sheep, where it is just about as fatal as small-pox in man. It can be convej-ed from the horse to the cow, man, etc., the cow being the place where man gets his variola. Variola Equinae, or Horse-Pox.— It is occasionally noticed in this country and in Europe, but not so common as cow-pox. It may be characterized as an eruptive vescichlo-pustular disease, preceded in most cases by more or less fever, which may be comparatively mild, and may be entirely overlooked ; a slightly quickened condition of the pulse — forty-live beats per minute, or even more — appetite somewhat impaired. The eruption shows itself upon any part of the body, but more particu- larly about the lips, heels, nose, mouth, nostrils, etc., and can be more readily seen in white-skinned horses. Some say it affects the schneiderian membrane. It may be communicated to man and the cow, and I believe to some other of the domestic animals. It may be characterized as a bloody disease, due to a virus or poison. The virus is generally in a fixed form ; some say it is in a volatile form ; I think it is in a fixed form Syniptoius. — There is more or less fever ; pulse comparatively weak and very quick; increased thirst; impaired appetite; but not gen- erally gone entirely : red disc-shaped patches appear upon the skin, each having a depression in its centre, from which the pustules are developed, from which exudes more or less serum.' They vary in size according to the situation they occupy ; they are larger in the heels on account of there being a greater number of sebaceous glands. These pustules may become confluent, and parts of the body may become one large sore. The schneiderian membrane may pre- sent an ulcerated appearance. These ulcers have a great tendency to heal, while in glanders they will not heal. There is a discharge of saliva if the mouth is affected ; masticulation performed with more or less difficulty. It may extend and involve the throat and even the intestinal canal. It usually runs its course in from eight to fifteen days, and until the scab begins to fall off, or convalescence, is about three weeks. This may be conveyed by contact in various ways — by the groom's clothes saddles, harness, and may be given by inocula- tion, as irritating the skin and rubbing some of the matter upon the place. Treatment is simple : cleanliness, a laxative diet, food such as will act upon the bowels, bran mashes, linseed meal ; or if in summer, give green food ; give hypo sulphite of soda, nitrate of potash and sulphur in small doses. The danger is in checking the eruption. It will get well readily if properly treated. The animal must not be exposed to the cold. Give something to increase the eruption, instead of trying to stop it. Give something to act upon the blood. For a local application, sulphate of 72 CAUSES, SYMPTOMS AND TREATMENT OF zinc ointment, carbolic lotion, etc., but it does not require much medi- cine ; give good, easil}- digested food. In all diseases of an eruptive character, if checked, it leaves the poison in the system. Variola YaceinaB — cow pox; oftener seen in cattle than in the horse, and hus been seen in every quarter of the globe — in some places in a very severe form, and attended with great fatality, but in Britain and America it is not fatal. It is an eruptive pustular disease, and usually shows itself on the udder and teat, but it may attack the feet and mouth. It is more severe on cattle that are continally housed, but it occasionally occurs in animals running in pasture It runs about the same course as in the horse — first, incubatory, febrile disturbances and eruptions. Symptoms. — More or less fever ; falling off of milk, if in milk cow Appetite slightly impaired ; slight increase of temperature, if examined. Then it shows itself by eruptions, especially about the udder ; but a slight eruption takes place, presenting a reddened condition, and may become confluent ; the teat may be one mass of pustular eruptions ; one person's milking ten, or perhaps twelve cows, tends to spread it. If you meet with two or three cases showing such symptoms, it is a little suspic- ious, but it may be caused by some local irritation, as running through long grass, irritating the pans ; and if kept in for two or three days, the irritation subsides. Treatment. — Cleanliness ; bath the udder nicely with tepid water and astringents, acetate of lead, carbolic lotion ; covering the teat with milk is beneficial. Give sulphur, hypo sulphite of soda, laxative diet. If irri- tated by the flies, keep up during the day, and let out at night. The virus is in a fixed form. It is a disease that occasionally occurs, and is of great importance, for this is where we get our vaccine matter, which has been of great benefit. The pig is also liable to variola. The virus is in both a fixed and volatile form in the pig. When the pig becomes spotted, called spotted fever, it may be due to variola. Give salines, laxatives, Epsom or glauber's salts ; good nourishing food The dog is also liable to variola. Tlie virus is in a fixed form. The eruption nearly the same in all animals, and the same stages in different subjects. Contagious Pleiiro-Pneiimoiiia is not communicable to any other species. We have two kinds ; sporadic, which runs its course quickly, and contagious, in which there is a great amount of fever, and is some- times classed as an infectious fever. It is a disease which is interesting to some people in this counti'y, as it exists to a more or less extent in America. It is a disease that has been known for two hundred years in Russia. During the present century it has gradually made its way from the east to the west. It was noticed in Prussia in 1 8^2 ; in Northern Russia in 1824 : in England in 1841 ; in America in 1843. It occurred in Australia in 1815, having been carried there by cattle from- England. Therefore, at present, it seems to be due to contagium, in some form or other. It is a specific contagious disease, peculiar to cattle. Due to blood poison, acting upon the system in general, and it shows ilself, in particular, in the lungs. It appears in both acute and sub-acute form, and we cannot communicate it to any other animal than cattle In a great many cases it is in the sub-acute, and proves a very serious disease. It implicates the lining membrane of the lungs and chest, and the lung substance as well. And if an animal recovers, it will not be attacked again, it never occurring twice in the same animal. It is contagious and due to a micro-organism : said by some to be a micrococcus. There are various stages, the first consists of DISEASES OF DOMESTIC ANIMALS. 73 an incubatory period, varying from two to six weeks, or even longer, and perhaps the first thing that will be noticed is an increased tem- perature of the body to 103, 104 or even 105 degrees. Often before any other signs are developed, there may be slight rigours or shiv- ering, but so slight as to be overlooked. After this, the system becomes impaired. If in milch cow, the secretion of milk is impaired, and there is a slight cough, noticed more in the morning, especially if the animal was kept up all night. The disease gradually grows worse, and the cough increases ; this may be the only symptom for some time. The animal was thought to be only suffering from a slight cold. After a while the lungs become affected, giving signs of quickened breathing. Animal gradually loses condition ; becomes emaciated ; hide bound condition of the skin ; a discharge from the nostrils of a whitish, or even a fetid character. In the first stages, you can, by ausculation, detect a grating sound, due to plural surfaces rubbing together. Concussion reveals a dull, dead sound. In the second stage the pulse is very quick ; usually symptoms of fever, dryness in the muzzle. The horns may be either cold or hot, and the temperature and cough increased. Cattle, when suffering, lie upon the sterum, in order to relieve the pressure. If likely to end fatally, the discharge becomes fetid ; may have slight diarrhoea, followed by constipation ; a particular gritting of the teeth ; moaning or grunting ; the eye has a glassy appearance ; debility, and death. Post mortem appearances. — After those changes have taken place in the lungs, the blood becomes affected, and then the inter-lobular tissue of the lungs, and exudation takes place ; the air cells become gradually obliterated, and you have a solidified or hepatized condi- tion, but the animal may die before hepatization sets in. The lung is increased much in weight. The lungs present a marbled appear- ance, but this is characteristic of inflammation of the lungs as well. The pleura is also affected, and covered with a slight fibrinous exudation ; there is also effusion of serum or hydrothorax, mixed with fibrinous clots. In this disease, there is sometimes suppuration. Parts of the lungs may become encysted, and the animal live, even after this, for years. The sporadic form is usaally quickly developed, while the contagious forrn is more of a fever at first, and then progresses afterwards. The contagium is said to be iu both a fixed and volatile form, and the virus more power- ful during the first or febrile stage It is most likely to be conveyed by means of the breath, and the virus will retain its activity for several months. There is some difference of opinion as to how it may be con- veyed, but it is supposed to find its way into the system through the respiratory organs. Blood has been given to healthy animals without producing it, and diseased lung has been tried with like effect However, it may be taken in by other ways, but most likely through the respiratory organs ; and it may exist without showing well-marked symptoms. It spreads rapidly over a great scope of territory. It may be carried on the cars, and it is said that it has been carried on the clothes of people. It may be possible, but it is said that animals must come in contact, as a general thing. The per cent, of loss from this is much greater when it first appears — the loss varying from thirty to eighty per cent. This disease has inflicted great loss in some countries, but it is not so fatal as rinderpest. America has suffered some loss, and I do not suppose has ever been entirely rid of it since its outbreak. Treatment has been attended with much success; but febrifuge and judicious counter irritation have been used. The disease should be stamped out without trying to treat it, and that would be more successful 4 74 CAUSES, SYMPT05IS AND TREATMENT OF than treatment. However, after it gets into a country spreading over many hundreds of miles, even then prophylactic treatment is better than curative It is not so extensive as formerly, as the animals are destroyed, and the owner is, in some countries, compensated. To prevent the dis- ease, I believe in inoculation. This was recommended in 1852. It was tried, and considered a benefit, and then was thought of no benefit ; but now it is supposed to be of great benefit. The virus for inoculation is taken from the lungs at a certain stage of the disease, and is put into the tail or other parts of the animal, which brings on a febrile stage. But pleuro-pneumonia is not produced only in exceptional cases ; but it pre- vents the attack of the disease. While the animal is under the influence of this it can convey the disease to other animals. I believe inoculation will mitigate a great many diseases. It has been practiced in Long ' Island, not by professional men, but by some owners and dairymen. (jrlanders is contagious, a most serious and loathesome disease. It has been known for thousands of years, and has been treated with almost every medicine in the pharmacopoeia, and nothing has proved a remedy, and veterinarians have been abused for aot curing it. They have pointed out the true character of it, and it is now rare to what it was thirty or forty years ago. It was common in Canada, when the country was being cleared up, but it is now rare ; it is still seen in some of the back town- ships. This disease consists in a discharge from one or both nostrils, which discharge will produce it in another horse and in man. It pro- duces tumefaction of the schneiderian membrane. Jt is found generally in the horse, and in man, but is said to be communicable to sheep, dogs, cats, and even to cattle, but there is doubt about this. It is a specific dis- ease of a contagious character, due to the introduction of a poison into the blood. It is contagious and infectious. These two terms are used for the same thing, but do mean just the same. It is most severe in countries where horses are kept in a highly artificial manner, while in countries where they are allowed to run out during most of the year, it is not so common. It was not known in Mexico until the war with the United States. It is said it does not exist in Australia, and is seldom seen in India except in imported horses, as their horses run out the most of the year. It is supposed it got into India by shipping horses ; during their passage the hatches being shut down during a storm. With glanders we also have farcy. They are, I believe, essentially the same disease, only differing in their manifestations. I never saw a case of farcy get well, but many say it does get well. Farcy will produce glanders, and glanders farcy, by taking the virus from one or the other. So both diseases are due to a blood poison essentially the same, but they differ in external manifestations. It is said to ocsur in other animals ; but it is seldom met in any except the horse. Causes. — Some say it is, and some say it is never, spontaneously generated. We have germs which we cannot account for, but we have striking examples of it being spontaneously produced. It is supposed to have been produced on shipboard during a storm, by shutting down the hatches, but there may have been an infected horse among them, the veterinarians were very careful in examining. It prevailed during the American war and the Prussian war. The horses supposed to be free from all such diseases. It can mostly be traced to contagious influences, it is likely to occur most severely in large cities, where many horses are kept together, for if one horse gets it, it pollutes the air, and it spreads rapidly. It occurs in two forms, acute and chronic. If developed in the acute form it runs its course very quickly ; but it is gene rally seen in DISEASES OF DOMESTIC ANIMALS. 75 the chronic form ; seldom met with in the acute form. It is generally seen in old and debilitated animals. When such become exposed they take it more readily than young, healthy animals. Kecent investigations have gone to show that this disease is due to the introduction into the system of a specific germ the bacillus malleolus. Symptoms. — After it arrives at a certain stage it is easily diagnosed, but until then it is not. It may continue for a long time without show- ing any constitutional disturbance, and it may be mistaken for other diseases. Some are liable to think that it is nasal gleet, unless the animal soon dies. Just in the early stage of the disease the animal suffers from rigours, more or less. Temperature is increased to lOS*^, 104^ or 105° ; then it will go for some time, and then there is a discharge from the nose, which varies much, according to the disease ; at first watery, and then purulent, coming more freely in some cases than others. It may be from one or both nostrils— usually from one, and that the left. By and by there is a cough, which may continue ; the discharge altered to some extent ; the most noticeable peculi-arity of the discharge is that it is of a viscid or sticky character ; it sticks around the nostril and has a tendency to stick the nostrils together ; for after the disease has been developed for some time, and is high up and affects the bone, there may be f jetor, but not so fetid as in nasal gleet. But if you have this discharge of a greenish-yellow colour, extremely viscid and sticky, and which adheres around the nostril ; contains a large amount of albumen : will sink readily in water — but this may occur from other causes — it is sympathetic of glanders. The character of the discharge will vary, and it may be tinged with blood, and if so, it is symptomatic of an acute attack. The eye will sjanpathize with the disease, giving rise to a sort of purulent discharge about the inner canthus, and pro- fuse, and it may not be present at all. But when you notice these, it is a significant symptom of glanders. But you will now see changes taking place in the mucous membrane of the nose. There will appear little elevations, tubercular deposits, which will change to cancerous ulcers, which may be irregular in shape, showing a sort of worm- eaten appearance, and these ulcers have no tendency to cicatrize or heal, although they may heal to a certain extent, but there remains a kind of white scar. These ulcerations may appear and run into each other, and the chamber becomes one ulcerated mass, and may completely eat through and destroy the septum nasi. I believe these ulcerations generally form well up, and may exist high up in the nasal chambers be- fore they appear in the visible mucous membrane. There is another well marked sign by which you know glanders. It is the enlargement of the submaxillary lymphatic glands. They do not suppurate, but become in- durated and adhere to the bone. This condition often makes its appear- ance just about the same time that the discharge from the nose takes place, and generally before you see the ulceration of the mucous mem- brane. There may be some difficulty in breathing, for I believe there are more or less changes in the lungs on account of tubercular deposits in the lungs. The animal falls off in condition, becomes emaciated, hide-bouud ; the skin seems to be attached to the flesh ; gradually pines away, and dies a lingering death. If in the chronic form until these characteristic symptoms — ulceration of the mucous mem- brane, greenish-yellow discharge, indurated condition of the glands — are well developed, you may experience difficulty in coming to a correct conclusion. As well as tubercular deposits in the lungs, you may have them in the mesenteric glands. When emaciation is 76 CAUSES, SYMPTOMS AND TREAT5IENT OP rapid, it may be a long time before these characteristic symptoms are developed. This was noticed in a certain stall in France, where glanders made its appearance. Close examination was made ; those affected removed, and after some time more were affected, and removed, etc., and it was found to exist in some that had showed no visible signs. It was, perhaps, due to tubercular deposits in the lungs that gave it to others. There are certain diseases that might be mistaken for glanders. In nasal gleet there is a discharge from one or both nostrils, but it is not as sticky ; there are no cancerous ulcers ; the submaxillary lymphatic glands do not adhere to the bone, as in glanders. Pathology or post mortem. — You find tubercular deposits in the lungs and respiratory tract in most cases. The glands become enlarged, and the afferent and efferent vessels also become enlarged, forming a sort of pedicle which attaches them to the subjacent tissue. The glands become more indurated and the cavities become filled up with a sort of pulpy deposition. There are generally tubercular deposits before ulceration takes place. Contagium is usually present in a fixed form, and is most virulent in the usual discharge, but it is contained in the blood of a diseased animal, and this blood will produce it in a healthy animal if put in the flesh. The covering of the muscles will produce it, the saliva, bile, and urine have produced it, and it is quite possible that it may be contained in all parts of the body. Its power varies, but is greatest in virulent cases, and some animals will withstand its effects. Some cases are related where it was brought on by glanderous tubercle from the lungs, where no other symptoms were noticed. Some authors think it is hereditary. We have a case mentioned where a glandered mare gave birth to a colt which died with glanders at about four and a half years old, without having been exposed to glanders. It is possible that a glandered mare might produce a colt that was free from glanders. The virus is not diminished in passing through many animals ; but is increased in potency if taken from the human being. The virus will retain its vitality for some time, which shows the necessity of thoroughly cleansing infected apartments by the use of boil- ing water, carbolic acid, etc. The virus may be dried in the air and kept for a great while, and if rendered fluid by water, is capable of producing glanders, so that a stable just swept out and left for months still contains the virus. Treatment. — I will allude to it ; giving plenty pure air, good food, etc., will cause the symptoms to disappear to some extent, but it is best to destroy the animal in all cases. You may keep a healthy animal near an infected one for some time, and the former not get the disease unless there was contact in some way, but if a number are diseased in the same stable, the air becomes contamin- ated, and it might produce it. If you are called into a stable where three or four horses are supposed to be affected with nasal gleet, one or two affected in the first place and then others get it, then be care- ful in your examination. Nasal glett is never of a contagious character. If you have a suspicion of glanders, keep such an animal isolated, and have recourse to debilitating treatment, as a purgative, or take some of the discharge from the nose and put into some part of the body, as the hind leg of the same animal, or better, if you can get a worthless animal, inoculate it, and if it affects him then you make up your mind that it is glanders. Acute Glanders. — This is not qnite so common here as it is in some other countries. This form may result from the chronic form, gener- ally due to the virus being introduced into the system in some way or DISEASES OF DOMESTIC ANIMALS. 77 other. It develops quickly, and most authors say it is spontaneously generated. When the animal has been inoculated with the virus, the first symptoms will appear in four or five days, and will be extreme rigours, increased temperature, a discharge from one or both nostrils ; chancrous ulcers in the nose, appearing far more quickly than in the chronic form, and they become confluent. The lungs are affected to a greater or less extent, and, in a great many cases, are severely affected with lobular inflammation, which frequently causes death. And I have noticed some cases where swelling of the limbs occurred, gener- ally in one hind limb. Post-Mortem. — Appearances are the same as given in the chronic form ; diffuse suppuration in the lungs, or a gangrenous condition of the lungs. A healthy animal may take it and die in from one to three weeks. Farcy exists with glanders, and is identical with glanders, although presenting different manifestations. Farcy is a term applied to many affections that are not really farcy, and could not be dis- tinguished from it by a casual observer ; one is called watery farcy. But when we say farcy, we mean a disease due to a specific blood poison, either generated within, or introduced into the system, and operating on the glands. It occurs in two forms, acute and chronic. It frequently terminates in glanders ; and we find by experience that glanders will produce farcy, and farcy glanders. If the animal is not pretty severely affected, you may mistake it in the first stage ; there is more or less fever, with a very well shown increase of temperature of the body ; but these changes are not so significant to the casual observer. Little swellings appear in connection with the lymphatic glands, in one of the limbs, a hind limb generally. It looks like lymphangitis. The swelling takes place in the lymphatic glands. It may occur in the head and neck, or even in other parts of the body ; and if upon the body, it may be taken for surfeit. These little enlarge- ments change character to some extent ; a discharge of aqueous char- acter takes place ; the openings do not heal as readily as ordinary sores, and they are called farcy buds. As well as this, you generally have, after the enlargements appear, little cords extending from the enlargements in various directions. These are designated farcy cords, A great many enlargements will appear, especially in the sub-maxillary glands and linguinal glands. They become enlarged, and run into each other more or less. The animal falls off in condition, presents a hide-bound appearance, etc. As well as these lymphatics being affected, a great part of the limb becomes swollen, presenting much the appearance of lymphangitis, unless the farcy buds are present. But in from two to six weeks we have symptoms which show the true character of the disease, and it may remain in this form for some time, and then acute farcy may set in. In other cases where you have the chronic form, it may remain in the same condition for some time, and all at once the joints will swell, perhaps the hock joint, then a discharge from the nose takes place ; chancrous ulcers form, and it is speedily followed by glanders. The ulcers appear to heal to a certain extent, but if it is a true case of farcy, the healing process never takes place perfectly. Prof. Williams thinks cases have been cured. I have known it to remain in the same condition for a considerable length of time, and spread the disease to a considerable extent. I knew one treated for more than a year, and caused the death of four good horses. I never knew a case to recover. It is due to a blood poison, it cannot be cured ; but you may have somewhat similar conditions, not due to specific poison. In the acute form the symptoms are developed in a 78 CAUSES, SYMPTOMS AND TREATMENT OF similar manner, but more violently. You may think it is lymphan- gitis ; the temperature is increased ; there is enlargement of the lym- phatic glands and vessels, but it will not terminate in resolution, as it will in lymphangitis, but it terminates in suppuration. In the acute form it may extend over the body, upon the sheath, udder, etc., and the horse may have acute glanders following. Sulphate of copper, in external and internal applications, seems to improve the case, but I always recommend the animal's destruction. It is extremely decep- tive, may recover apparently, but is never cured. If you only have suspicion of it, isolate the animal until you are sure of what is the matter. Although this is contagious, it is not so very contagious as some think ; it is necessary to bring the animal into contact. Glan- derous matter may be carried in various ways — in water, from animal's drinking from the same pail, trough, etc. ; and this matter may be given to an animal, and not produce the disease, and it was thought at one time that this would not produce it, but it is now known that it will. Where it is necessary to examine an animal for glanders, be careful and do not get any of the matter in any sores, in the eye, mouth, nose, etc., as it might produce glanders ; you may be able to examine by daylight, and it may be necessary to use an artificial light. Bring it close to the nose, which will enable you to see farther up the nose. However, there is no great danger in handling a glandered horse, unless there are sores upon your hands ; but if you make a post mor- tem, then be careful about cutting the hands, for it will produce glan- ders in man. Some such cases are on record. Although it is a disease common to the horse, it is said it has been conveyed to cattle, sheep, goats, lions, tigers, etc., they feeding on the flesh of horses that had died with glanders. But if it is cooked, it will not produce it, hence plenty of boiling water, carbolic acid, lime, etc., will destroy the virus. So, if you have an infected stable, cleanse the apartments thoroughly, and, perhaps, carbolic acid is just as good as anything you can use. DISEASES OF THE EiR. Injuries to the ear must be treated as injuries to the other parts. Just bring the parts together and secure the animal so he cannot rub. A tumour may appear in the ear of the horse, either in the external part or deep-seated in the meatus internus. An injury may produce it. In the first stages it does not interfere with the animal, but after some time it does. The horse will hold his head to one side or the other, and will shake the head when you do anything with him ; and it may bring on cerebral derangement. I have seen some cases of such tumours where the animal would walk in a circular manner, showing cerebral disturbance. You can remove them with the scis- sors or knife, then cleanse the parts nicely and carefully. Use carbolic acid, sulphate of zinc, etc., and the cerebral disturbance, in many cases, will be removed. Deafness. — If it is of a permanent character or of long standing, nothmg can be done for it. It is hard to detect, and you may meet with temporary deafness, or partial deafness, from cannonading — from the intense noise. Treat by a moderate dose of laxative, and bathe the parts well. If the cause is kept up for some time it may cause entire deafness. The animal appears stubborn, and cannot be taught to obey the word. The same things occur in cattle — tumours, etc. — and in cattle they DISEASES OF DOMESTIC ANIMALS. 79 may be of a tubercular character, especially if there is a tubercular tendency ; but we oftener meet with this in dogs than in other ani- mals. In dogs it is called Canker, and is either external or internal, and involves the internal or external flap and the meatus. Canker is more likely to occur in those dogs used for sporting, from running through long grass, brush, etc., getting wet and then drying, which sets up irritation ; and the manner of feeding the animal aggravates it — an over- abundance of animal food making him extremely fat, etc. Symptoms. — More or less irritation ; he moves the head from one side to the other ; scratches the ear ; if you look at the ear you may find a discharge of an extremely fetid character. Treatment is both local and constitutional. If from a well-marked cause, remove the cause ; cleanse nicely and syringe with tepid water or carbolic acid — one part to twenty or twenty-five of water, or even stronger ; or nitrate of silver in solution ; or the tincture of the chlo- ride of iron ; keep him fixed in such a manner that he cannot shake the head, and if plethoric, give physic, syrup, or buckthorn and jalap, or castor-oil is very good. Aloes may be given, but it is not so good, as it has a tendency to irritate the rectum. Iodide of potassium is also good. If the ear becomes gangrenous, you may have to remove a part of it, and you may have abscesses from some causes ; they are generally serious. Make an incision, and then use some of the reme- dies given. Restrict the diet to a certain extent. Give some exercise. We sometimes meet with fistula at the root of the ear. This is more common in horses, and'is generally congenital, or from malformation. It is easily detected by close examination, but it might be overlooked. But you can notice a little matter at the root of the ear, and a small opening, which is a fistulous opening, and passes well in at the root of the ear, and is often of long-standing. The skin may be reflected in and covered with the ear. Exercise the parts and cut this fistulous wound out. It may not set up much irritation, but must generally be dissected out, or you may inject with caustics and afterward dress with a mild caustic, as nitrate of silver, chloride of antimony, tincture of the chloride of iron ; and you may have tooth-deposits — tooth sub- stances have been formed at the root of the ear and caused fistula ; in such cases you find enlargement to some extent. It is possible that tooth-substances may be found in the testicle. There is scarcely a tissue where a tooth substance may not be found. DISEASES OF BONE. Osseous, — The diseases of the osseous structures. These hard structures are liable to the inflammatory process, the same as the soft structures, and, according to the character of the inflammation, cer- tain names are applied. Bone is composed of two tissues — the com- pact and cancellated, covered by a vascular, white, fibrous, highly nervous membrane, called the periosteum. If inflammation attacks the internal part of the bone, it is likely to involve the periosteum, and if it attacks the periosteum, it is likely to involve the bone. Ostitis. — Inflammation of bone in the horse. This is generally found the result of either direct or indirect injury, but sometimes of a constitutional tendency. It may begin either in the compact or cancellated tissue. The first effect is to increase the size of the hav- ersion canals, which become more irregular in size and outline, and 80 CAUSES, SYMPTOMS AND TREATMENT OF the union between the earthy salts and the vascular net-work in which they are contained is lessened, and the salts are partially removed and the place taken by the products of inflammation. Then there is a cancellated tissue, and it enlarges to a certain extent, and when the inflammatory action begins in this is always the case. The inflam- mation may come in the cancellated tissue and involve the compact and destroy the laminal layer. This destroys the articular cartilage, then the cancellated tissues come in contact. Nature endeavors to overcome this by throwing out a deposit, and the joint becomes one bone. If the inflammatory action results from some constitutional cause, it is scrofulous or rheumatic ostitis, which is more likely to ap- pear in colts. This inflammation may also have different termina- tions and names. Kesolution may be a termination ; or if the inflam- matory action is kept up, an abscess may result — and an abscess of the bone is difficult to detect in our patients. If there is but a small amount of pus, it is usually relieved by cutting open the parts, treph- ining, etc. An injury may produce an abscess. The horse suffers in- tensely from inflammation of the bone ; the periosteum is very likely to become affected, periostitis and ostitis frequently being associated ; an exudation is often thrown out between the periosteum and the bone, as in splint, sore shins, etc., just from inflammation of the periosteum. Periostitis is more likely to occur in those bones that stand upright, and is due to concussion. These are the products of inflammation of the bone. If ossitic matter is thrown out it is called exofosis, meaning bony deposit, and is produced by more or less inflammatory action. A very slight action is sufficient, sometimes, to produce it. It may occur without the horse suffering from irritation. This is sometimes spongy, and sometimes hard and dense. A common exostosis is spavin, and it is analagous to the structure of bone, from which it sprung. It is in our patients generally the result of injury. Splint is perhaps a better example of exotosis than spavin. Caries is analagous to ulceration in the soft tissues — death of bone in small particles It is decay of bone, the result of inflammatory ac- tion. It is molecular death of a part. Caries is more common in some bones than others. In spavin, where the animal has been lame for some time, the bone presents a carious condition ; also in ringbone, navicular disease, etc. It seldom in such cases affects the soft tissues to any great extent, and is called dry caries. The laminal layer under- goes absorption and ulceration, and the articular cartilage is destroyed, and is never renewed. Inflammation is set up in the bone from some cause or other ; nutrition is interfered with ; a change takes place be- tween the vascular elements, and the salts are removed to a certain extent, and there appears a small spot upon the articular surface. If it attacks other parts, as from injury to facial bones, or in connection with the atlas, withers, etc., then it is somewhat different ; matter is formed and cannot escape, and it burrows down and sets up irritation in the periosteum and bone, and so produces caries of the bone. If there is a discharge, and it continues for some time, it is generally fetid. There may be caries of the lower jaw, which may be caused by the action of the bit. If the inflammatory action throws out ossific matter sufficient to fasten two bones together, it is called Anchylosis. — This is classified under bone diseases, but it is the result of long union ; but it may be due to fibrous structures thrown out from the ligaments, tendons, etc. But if it involves the hock or pastern joint, then it is generally from ossific matter thrown out between the articulations. If the bone becomes inflamed, causing DISEASES OF DOMESTIC ANIMALS. 81 the articular cartilage to be destroyed, nature endeavours to repair this by throwing out ossific matter, and the two bones become united, until it is sometimes difficult to see any point of union. The changes were similar, but to a greater extent. In some cases the bone dies and irritates the surrounding tissues, which ends in sup- puration, or a discharge of matter. The matter becomes somewhat fetid and ichorous. It destroys the hair over which it flows and smells of sulphureted hydrogen. If you press upon the matter from a fistulous opening, you may find small hard particles, which are small particles of bone which have become detached. The treatment is dif- ferent in this case from spavin, ringbone, etc. Find and remove the diseased part, scrape the bone with a small bone spoon, or in other cases take a small portion of bone off with chisel. The action of cer- tain acids will bring about a healthy action, as hydro-chloric or sulphuric acid, but you must be careful in using them. If you cannot excise the bone, the use of sulphuric acid and water — one part of acid to one of water, or one to four, will bring about a healthy action. As well as local, there is benefit from constitutional remedies, as good food, tonics, etc. If in a debilitated condition, the healing process will be assisted by giving a dose of iron. In ringbone, spavin, etc., the treatment is different. We do not scrape the bone, but we arrest the action by a generous diet and counter-irritation. It is difficult to tell how these act, but they tend to produce inflammatory action and hasten the process of exudation. If the articulations are destroyed, then nothing can be done to cure or reduce the enlargement. When a portion or whole of a bone dies, then it is called Necrosis, and it is analagous to gangrene in the soft tissues. By this we understand death, or mortification of a bone, the result of inflammation. It is not very common in our patients — that is, total necrosis of any large bone. It may be in the bones of the face, or in some of the smaller articulations. We have it in sore shins, but not often. In the human patient it is a common disease, and causes intense pain. It is not only dead but literally buried. It shows the wonderful reparative powers of nature. A large bone may die and its place be taken by new bone, which presents much the same appear- ance as the former bone ; but a horse is not often allowed to live long enough to reproduce an entire large bone. We frequently meet with this in open joint. When a part of the bone dies it stimulates the surrounding parts, and there is thrown out more ne^ bone, and the dead bone is carried off by exfoliation, but this is very tedious, and, as a general thing, it must be removed by surgery. Necrosis is fre- quently met with in the lower jaw, from the action of the bit. It causes more or less swelling of the soft tissues ; suppuration results. Notice, if you open an abscess in this part, and you may find small portions of bone in the matter. If this takes place in the shaft of some of the large bones the process is more complicated. Osteo Sarcoma. — This is a non-inflammatory disease of bone, and is by no means uncommon in cattle ; and I believe it sometimes occurs in the horse ; but I cannot recollect of such a case. It is gen- erally due to some constitutional diathesis, of a scrofulous or tubercu- lar character. The cavities found in the bone, if examined, will be found to contain deposits — tubercular deposits. It usually attacks the bones of the head, particularly the lower jaw ; but sometimes attacks the upper jaw, or almost any bone. If animals, having this scrofulous tendency, are exposed to any exciting cause, the disease is easily set up. It usually makes its appearance upon the side, or lower 82 CAUSES, SYMPTOMS AND TREATMENT OP portion of the lower jaw. You would, perhaps, think it was a slight fibrous tumour at first, but it enlarges, becomes irritated, and matter may form and discharge, and it goes on until it may destroy the entire jaw, destroying the alveolar cavities, and allowing the teeth to fall out. It is of a malignant character, to some extent. There is no well-marked line of demarcation between the healthy and unhealthy parts. It is said to occur more frequently in well-bred cattle. A con- siderable change takes place in the bone ; it grows. Spicula are formed, and also these cavities. Treatment. — Very little can be done for it. If you meet with a tumour in this region, which tends to extend forward and inward, and involving the bone, it is generally an early stage of osteo sarcoma. It grows rapidly in some cases, perhaps, assuming the condition of the specimen in some twelve or fifteen months. Or, it may remain about one size for a considerable length of time. If you attempt to treat it, use biniodide of mercury, iodide ointment, etc. It has been recom- mended to use the knife, but by looking at the specimen present, you can see that it would be absurd to attempt to remove it. If an animal is in good condition, I do not think it interferes with the flesh as food, but if in poor condition, and much discharge of matter, it would not be very desirable as food. It is likely to cause death sooner or later. Rickets Richitis. — This disease may occur in all young animals, but oftener it is seen in dogs than in any others. I think it is due to a deficiency of the lime salts of the bone, and possibly the nutritive powers of the bone tissues are also impaired, so that it cannot take up the salts necessary for its nutrition. It generally appears at an early age, and is more likely to occur in a weak, sickly animal, especially one of a scrofalous diathesis, and it may be produced by a scarcity of milk from the mother. If milk is withheld, the animal does not receive the proper constituents for the tissues and the build- ing of bone. I have seen some cases from a horse doing too much serving, which tends to weaken the colt to a certain extent, and may be the exciting cause of rickets. It may result from anything that will tend to weaken an animal, especially if of the scrofulous diathesis. Symptoms are well marked. As the bones do not contain the proper amount of earthly matter they bend readily. In the horse the bones of the leg generally bend outwards ; they do not fracture, but bend. In the dog the bones bend both ways, and the bowels are more or less affected ; the head may be enlarged to a great extent. Treatment. — Examine the case carefully, and if you think the digestive organs are out of order, it is in some cases advisable to give a slight laxative, as linseed or castor oil, and attend to the matter and see that your patient gets a regular and proper supply of good milk, or your treatment will be of little use. If the mother is in poor condition, or is overworked, see that the opposite takes place. Use alkaline salts in very small doses, and you may give a dose of sulphate of iron to build up the system. The great secret is to give plenty of milk, as it has all the ingredients needed ; or you may assist the strengthening of the limbs with a starch bandage or a porous bandage (a preparation for broken limbs, etc.) — anything that will tend to straighten the leg. Keep either in a comfortable box or in a small pasture, and do not allow it to run around too much. Oatmeal porridge is excellent for this in dogs and man. Bone filings are recom- mended, or give the dog a bone to gnaw — it is excellent for dogs. Cod liver oil is of benefit in dogs. Fra^ilitas Ossinm is a fragile condition of the bones. It is seen DISEASES OF DOMESTIC ANIMALS. 83 as an animal advances in life. As an animal becomes older, the bone loses the animal, or organic matter, to a certain extent, and has too much earthy or morganic salts. But this may occur in an earlier period of life. Where a fatty matter is developed, instead of a car- tilaginous basis, or there is fatty degeneration in anchylosis of the vertebra, this condition is present. After performing neurotomy in navicular disease, fracture may occur from this condition, the animal using the limb more after the operation, as there is no pain. Bat it may come from something that interferes with the proper nutrition of the bone, sometimes associated with the vertebral column, and is called softening of the vertebra. If an animal is affected with the spavin, and is stiff in the back, there is, perhaps, anchylosis, due to this condition of the system, and in such cases it is not best to cast an animal, for you may fracture the vertebra. I had one case of this kind. The animal is unthrifty, tucked up in the belly, etc. If you meet with a horse, say twelve years old, with a stifif back and a spavin, tucked up in the belly, as if in extreme pain from systematic affec- tion, nothing can be done for it. Mollilies Ossiiim is just the opposite, and is present in rickets to a certain extent, but a change takes place differing from rickets in certain cases. Enchondroma, a cartilaginous growth upon a bone, or more fre- quently met with on the ribs and sternum. It may gain a great size and the animal be in good condition. It may occur in the stifle joint, and the result of some irritation ; but it generally comes from some constitutional disturbance. It may occur in the hands and fingers to such an extent that the person can hardly raise the hand. More likely to occur in cattle. Judicious counter-irritation may remove these deposits to a considerable extent. These tumours are composed of the elements of cartilage — cartilaginous cells. There is seldom any ulceration, and it does not seem to affect the animal to any great extent. It possibly involves the bones of the head, but more likely the ribs and sternum. FKACTURE. Fracture is a solution of continuity of bone, and it is common in all domestic animals. There are several varieties of fracture, called simple, compound, comminuted and complicated. Simple is that in which a bone is broken, and the muscles and skin not much injured, and is the most desirable. Compound, in which the bones enter the muscles and perhaps pass through the skin, and is a pretty severe fracture. Commui'ited, in which the bone is broken and shattered. Complicated, in which an important vessel or an articulation is injured. Some imagine that the bones of the horse will not unite as quickly as the bones of a man. But I think they will unite more quickly, the great difficulty being in keeping the animal quiet, and the bones in the proper position. And you must restore the animal so as to be of value. In the human being the limb is frequently considerably altered in condition. If such would occur in a horse, it would depre- ciate his value to a great extent. Fractures occur in different ways, and receive various names, according to the way in which the frac- ture occurs— transverse, oblique, and longitudinal — and it is astonish- ing how easily they will occur in some cases ; and in other cases an animal may receive a great injury and fracture not occur. They 84 CAUSES, SYMPTOMS AND TREATMENT OF occur from external violence, operating directly upon the bone, as falling, receiving a kick, etc., or by external violence, causing a strain not sufficient to break the bone receiving the injury, but breaks in some other part. This sometimes occurs in the long bones. Or if a horse falls back and strikes the occipital bone, it does not fracture the occipital but the basilar process. A fracture may occur from intense muscular exertion. This sometimes occurs in operations, however careful they are performed. This is more likely to occur in young animals, breaking the union between the diaphysis and epiphysis — the union between the points of ossification. Fracture may occur from concussion. Without any weight upon the back, the animal falters, becomes suddenly lame, and an examination reveals fracDure of the os-su£fraginis or ossa-innominata. General Symptoms. — Generally easily detected. The bones may pass each other, and so show it. The part may lose motion, or, in other cases, you may have to detect by crepitation, and you may find it in parts where you will have great difficulty in detecting it, for great swelling may take place, and then you cannot hear any crepitation. General Treatment. — There are certain general and certain special rules applicable to our cases. A compound fracture can not be treated with any degree of success in the horse, especially those of the tibia, humerus, etc. The parts should be brought into proper position as soon as possible — however, in a simple fracture they are not separated to any great extent — and keep them in position by some means, such as a starch or plaster of paris bandage, and use slings. A starch bandage is just factory cotton starched and applied around the parts. Or use nice light splints, leather or anything of that sort. But if you use some cumbersome appliance you will do more harm than good. There is a new kind of splint used in human practice— a kind of porous felt. It looks very nice and light, and by immersing it in hot water it becomes perfectly pliable, and will take the perfect shape of the part ; then apply cold water and it be- comes solid. It is astonishing how reunion will take place in some cases, even without anything being done. I saw a case where pretty good recovery had taken place after fracture of the femur, without any treatment. Keunion takes place more quickly in young animals. In some cases, although everything is done properly, reunion will not take place. We also find false joints by the production of fibro- cartilage. The Period of Union, and the manner in which bones unite, depends upon the structure of the bones and the manner in which they are kept together. There is effusion of blood around the fractured ends, and between the periosteum and the bone, and, by and by, this extra- vasation becomes absorbed and reparative material is deposited between the fractured ends. This is called callus. At first there is an effusion from the vessels of the bone and periosteum. This becomes converted into bone — at first spongy, but it gradually becomes firmer and firmer, and leaves but little mark, and it usually goes on in this manner. If the bones are properly placed, and the animal kept quiet, this callus will form in eight or ten days. In dogs (the healing pro- cess is more difficult and complicated where there is a certain amount of motion,) there is a ring or sheath of bone around the ends of the bone — a provisional callus — which tends to keep the ends of the bones in position ; there is also a plug in the medullary canal. There are various stages. The first is extravasation of reparative material between the bone and periosteum; second, this exudation acquires a DISEASES OF DOMESTIC ANIMALS. 85 character of fibro-cartilage to a certain extent ; third, internal and exter- nal callus ; fourth, this sort of spongy bone becomes harder, lime salts are developed, but the ends of the bone are still distinct from each other ; fifth, the permanent and intermediate callus forms between the broken ends. The provisional becomes absorbed to a certain extent. This change goes on for some time, perhaps for years. These reparative materials make the parts as strong, or stronger, than before fracture. INJURIES TO THE VERTEBRA. Caries and Exostosis. — The atlas, the first cervical vertebra, is so affected in poll-evil. If poll-evil has been present for years, the matter cannot get away ; it burrows deeper, and irritation is set up and the periosteum destroyed and caries set up ; and if caries is ex- tensive, nothing can be done for it ; but if only slight, touching the parts with dilute sulphuric acid may bring about a healthy action. The parts may heal up and remain stiff ; in such a case there is more or less exostosis. This may result from an injury to the parts, or from poll-evil of an ordinary cause. The bone is liable to fracture from casting the animal, or from striking the back part of the head, etc. It is sometimes necessary to remove small spicula of bone, in cases of anchylosis, or they may become detached, and act as an irri- tant, giving rise to swelling of the tissues, and perhaps poll-evil ; the symptoms are generally very plain. There is a discharge of offensive matter ; you lay open the sinuses, and perhaps find a foreign body or a part of a bone. If you remove this the irritation will cease and the parts heal. The Axis is also liable to injury ; the odontoid process acts as a pivot, upon which the atlas moves, and is more liable to be fractured than the body of the bone. This is usually the result of violent injury. A horse running fast, falling and striking the nose, or from slipping, etc. Death is almost instantaneous, although there is a possibility of an animal living for some time. I never noticed it in the horse, but have known it in man. If the injury is anterior to the diaphragmatic or phrenic nerve, instant death is usually the result. Other vertebrae may become diseased ; there may be caries, necrosis and ossific growths, and it is hard to say what may be the cause of these ossific growths. Fractures of other cervical vertebrae may occur from being halter-cast, getting the foot into the halter and struggling violently. The transverse processes of the bones are occasionally fractured. This, as a general thing, is not attended with any very serious results. It may occur from the animal getting under the manger, or other such injuries. Symptoms. — There is sometimes difficulty in detecting this, but if an animal has been halter-cast, the neck swollen, there is a tendency to carry the head to one side, and if you examine along the neck you may be able to find the seat of injury, and you may be able to detect crepitation. If you suspect a fracture, keep the animal as quiet as possible ; bathe to allay the irritation of the soft tissues, and keep the feed box pretty high, and keep the animal from moving the head much, and you may keep him tied up and not allow him to lie down for twenty-four or thirty-six hours. Bandaging is of little use. You may meet with a case where the animal was not attended to, and re- union did not take place, and there is necrosis of the parts ; they become detached, and set up irritation ; there is a discharge — perhaps heals up and then breaks out again, etc. There is some cause, some 86 CAUSES, SYMPTOMS AND TREATMENT OF irritant, and the probability is that a piece of bone is the cause of the irritation. Cut down and remove the particle of bone. Sometimes there is a partial dislocation, and the animal may live for some time. In such cases V7ry neck is the result. The spine or nerves sometimes becomes injured from being halter-cast, and if you attempt to straighten the neck, the animal falls down. Injuries to the Dorsal Vertebra.— Caries and anchylosis are not uncommon. Anchylosis is most common in aged horses, especially those used for heavy carting, and old military horses, from carrying heavy weights. But we find it in young horses, and it may be the result of an ossific diathesis. And if you have to cast an aged horse, that has a tucked-up appearance, somewhat stiff in his movements, a fracture is liable to be produced. There may be anchylosis of the transverse or superior or spinous processes. It is not easily diagnosed, but if you notice an old animal with a peculiar motion and hollow in the back, and you find nothing the matter with the feet and limbs to produce it, it is likely to be anchylosis. Nothing can be done for it. The superior spinous processes may be fractured. The withers differ in formation in different animals, some being high, and others low ; and it is a good point to have good withers, but they may be so high as to be objectionable. Injury is usually produced in a very simple manner — by an ill-fitting saddle ; sometimes by a cart saddle, but usually by a riding saddle, especially if the horse has high withers. It may occur suddenly, and produce fistula of the withers. Symptoms. — There is an offensive discharge, characteristic of caries, and it possesses active properties. If but a small portion of the bone is affected, scrape with a bone spoon, or touch with hydrchloric or sulphuric acid ; but if a greater portion is affected, you may use the bone forceps, and take away a portion of it, or even use the bone saw. So the treatment varies according to the extent of the injury. Frac- tures sometimes occur in the bones of the withers, but not often, and if produced, it is generally from rolling violently, or from external injury. If the animal is kept quiet, reunion takes place quickly ; but if allowed to run, or compelled to work, a large abscess may form and caries take place. Remove the detached parts. It is not very common, but may occur. There may be fracture of the bodies of the dorsal vertebra. This is known as broken back It generally occurs from severe injury, if from about the middle forward ; but if from about the middle of the region backward, from muscular contraction. If fracture of the dorsal vertebra occurs pretty well forward, you will have paralysis of both hind and fore extremities; but if further back, paralysis of the hind extremities only. You may possibly see some motion in the tail, after there is complete paralysis of the other parts. Fracture well back may occur in different ways — from getting the hind legs in the mud and trying to get out ; from running away and running against some obstacle ; or from being thrown for an opera- tion — from the fall, or from struggling while on the ground. Symp- toms vary. There is either partial or complete paralysis. There are cases where there is slight paralysis and the animal recovers, if it is a fracture without displacement. There is a kind of a straddling action of the hind quarters, difficulty of getting up when down. Keep the animal very quiet, and use slings — although some would object to the use of slings — I would recommend them, but not unless the animal is able to bear a part of his weight, for if he would throw his entire weight on the slings it might cause separation of the parts. If the case is severe, you are told that the animal has received some DISEASES OP DOMESTIC ANIMALS. 87 injury ; he can perhaps get up on the fore legs, but not on the hind ones ; there is paralysis. You move the hind leg, there is no resist- ance ; prick him with a pin, there is no sensation. It is best to recommend the destruction of the animal. In some cases there will be great pain, in others but little. Injuries to the Lumbar Vertebra. — Anchylosis is very common, both* in the transverse processes and bodies, and it may be due to an ossific diathesis. Fracture occurs in the same manner and presents the same symptoms as in the dorsal region. If fracture occurs to the transverse processes, and the animal is kept quiet, reunion takes place quickly, but a slight motion may prevent this, and produce a fistula, and if you explore the sinus you will find a detached portion of bone. Fractures of the Sacrum. — Most likely to occur in the transyerse processes, where they are in connection with the sacrum, and usually from some severe injury, violent exertion, or from falling violently. Symptoms are not very clear in all cases. If the fracture is bat slight he may go tolerably well, but if severe there is great difficulty in moving, and from the great weight the bones are brought down, and you may locate by examination per rectum and having the limbs moved. Treatment. — Just keep him quiet and allow nature to effect a cure. (You can take the credit for it if you like). He may always be slightly down in the hip, but may be able to do hard or even fast work. If there are constitutional symptoms, use constitutional treat- ment, fomentations, laxatives, febrifuges, etc. The superior spines of the sacrum may be fractured ; it usually occurs from some heavy body falling upon the parts. It is more likely to be met with in heavy cart horses, from the cart falling upon them, or in railroading horses, from something falling upon them. It may occur from running away. It is likely to be followed by caries or necrosis, generally caries. A portion of the bone is apt to become detached. If you have an abscess which heals, forms again, etc., then sinuses form. There is some cause for it. Cut down and remove the parts. This is some- times difficult to do, as it may become necrosed deep down. The anterior and superior spines of the pelvic bones are liable to fracture, usually from the animal coming in contact with some hard body, as running through a doorway. Fracture of the Pelvic Bones. — Fracture of the anterio- superior spine, generally from direct injury, from falling violently upon the ground, or from running through a doorway, or from running through a stumpy field and striking against a stump. It does not often occur from slipping. It does not interfere much with the horse's action. Keep him quiet in a box. There is great difficulty in getting reunion here. There is frequently a fibro-cartilaginous deposit forming a reunion by what is known as false joint. It may be necessary to remove a considerable portion of the bone, and is the only method of saving the animal. The muscles will regain their natural condition to a considerable extent ; but the animal will be down in the hip, which is best detected by standing behind the animal. It is necessary to watch for this in examining for soundness. The ilium may be fractured right through the dorsum. It usually occurs from slipping or falling, and, if severe it is easily diagnosed. Owing to the weight of the muscles the haunch is pulled down. There will be well marked crepitation, and if the bone is much shattered, and there is constitu- tional disturbance, as fever, the pulse running up to one hundred or 88 CAUSES, SYMPTOMS AND TREATMENT OF more, the animal sweats freely, the blood vessels injured, etc. It is generally advisable to destroy the animal. I generally make up my mind from the amount of constitutional disturbance. The Treatment is to keep the animal quiet, and place in slings. It will get well in from six to ten weeks. He will be down in the hip. The Posterior Iliac spine is also liable to fracture, and the treat- ment is the same. Fracture of the Shaft of the Iliuiu is pretty common, and a simple fracture of it usually occurs from slipping, but may occur from falling or from severe muscular contraction. Symptoms. — If you are conversant with the parts it is easily diag- nosed. There is difficulty in bringing the limb forward, but it is astonishing how well they can walk, in some cases, but will not do so unless compelled to. If in the winter, and you are told that an animal slipped and became suddenly lame, you move the limb, and in most cases you can detect crepitation, or you may examine per rectum, and it may be a slight fracture, and the bones held in their places by the periosteum. Your prognosis should be favourable if in a young healthy animal ; but in an old animal reunion does not take place so readily. Keep quiet and place in slings. Although he can stand pretty well, slings assist him considerably. If the muscles are swollen, use fomentations ; or, some use a plaster, to keep the parts in a fixed position. Attend to the constitutional treatment. Give a slight laxa- tive, if the bowels are costive, and an animal may be able to do fast work. I knew one to pace in three minutes after such a fracture. Fracture of the Acetabulum. — This is a very serious lesion, and sometimes there is a dislocation of the hip joint, in connection with such a fracture. This fracture may be produced in the same way — from slipping — more likely from slipping and coming in contact with the ground. The animal cannot mark the limb at all in most cases. There is severe constitutional disturbance, quick pulse and great pain. It is advisable to examine ^^r rectum, and if you find it is fractured in different places, it is advisable to destroy the animal. But there may be exceptional cases, as in a brood mare or stallion ; but if it is a com- plicated fracture, it is likely to set up inflammation, caries, exostosis, etc. Fracture of the Pubes aud Ischium is common. It occurs in the same way as slipping, or slipping and falling, but in three cases out of four, just from slipping, and a very slight slip may produce it. The symptoms are just about the same, but the hip does not descend quite so far as in other cases. The horse can not get up, when he lies down, without assistance, and in some cases you are able to detect crepitation. You can locate by examination per rectum. It is likely to extend right through the foramen ovale, but if it is just through the shaft, and there is no displacement, recovery may take place. All you can do is to keep the animal quiet. A spiculum of bone may puncture the obturator artery, causing death by internal hemorrhage. In such cases the animal sweats profusely, the pulse runs down, etc. Fracture of the Symphysis Pubes usually occurs from slipping, and I think this is the only way it does occur. It is difficult to diag- nose ; there is a difficulty in extending both limbs, but perhaps more in one than the other. He endeavours to keep the limbs out. There is generally no crepitation. If an animal acts in this way, and you know it has slipped, examine /^-y rectum. Press gently upon the blad- der until it is emptied of its contents, and you can feel it. Keep the animal quiet, and a bandage around the limbs to keep them together. It may do good. DISEASES OF DOMESTIC ANIMALS. 89 The Tuberosify of the Ischium is fractured. It generally occurs from slipping upon the haunches, or rearing and falling upon the haunches, coming in contact with some obstacle, etc. ; rarely, if ever, from muscular contraction. If but a small portion is detached, re- union is apt to be of a cartilaginous deposit, or necrosis. It is neces- sary to cut in and remove the part, but it is more difficult in this than in some other parts. But unless this is done nothing can be done. Down in the hip is the result of these injuries. Fore Extremities. — The cartilage of prolongation occasionally be- comes diseased in fistulous withers. It gives rise to irritation, sinuses, caries, etc. Remove the diseased portion and scrape with a spoon. The scapula is liable to fracture in any part of it. This occurs from violent injury, but it is possible for it to come from violent muscular exertion. The symptoms vary according to the part injured ; easily detected, especially if seen soon after the accident. He cannot move the limb; perhaps goes on three legs, and there is crepitation. If swelling takes place, as it is apt to do, then there will be some difficulty in diagnosing. Crepitation is always conclusive evidence of a fracture. If the swelling is but slight, there may be crepitation. It is not often necessary to have recourse to treatment, unless in a blood mare or stallion — keep quiet, use slings, reduce the irritation by fomentations, etc. The spine is sometimes fractured by a kick, or some hard body ; there is apt to be separation of a small part from the bone. There is discharge of pus of an offensive character, so it is extremely liable to be followed by necrosis. The shoulder joint is liable to caries and exostosis, sometimes from open joint, or severe strains, etc. Fracture of the Humwus occasionally occurs, from violent con- cussion, a kick or fall, and may be either simple or compound. If it is simple and it is in a young animal it may be treated, but if it is compound it is not necessary to treat. The animal cannot extend the limb, nor throw any weight upon it ; if oblique one part of the bone passes the other, and there is great swelling. There is crepitation in most cases. The Olecranon, or point of the elbow is liable to fracture ; it may occur in various ways, usually from slipping and coming in contact with the ground. If the case is not severe it is difficult to diagnose. There is no crepitation. The joint may be completely detached, and drawn from the body of the bone. We judge from the action of the animal. It bears no weight upon the limb ; stands with the limb in a semi-flexed con- dition. There is considerable swelling. It has been recommended to place your knee against the knee of the injured leg, and by continued pressure straighten the affected limb, and direct an assistant to lift the opposite limb, and if it is fracture the animal will fall. The treatment is not attended with any degree of success, but if attended to immediately reunion may take place. There are also both caries and exostosis in the elbow joint, from strains and punctured wounds. The matter burrows down, causing open joint. The body of the radius is liable to fracture ; this may be produced in the ways I have men- tioned, and if compound or comminuted, it is better to destroy the animal, but if simple it may be treated. Use splints, the lighter the better ; place in slings. A fracture may occur here and be overlooked. If the horse has received a kick puncturing the skin and muscles, he suffers much pain ; cannot throw any weight upon the limb ; the chances are ten to one that fracture has occurred, and the bones not displaced. The animal might move around for some time, lie down, and getting up displace the parts ; therefore, if you have any suspicion ^^ 90 CAUSES, SYMPTOMS AND TREATMENT OF V>f fracture, keep the animal quiet for about ten da^s, after which ^here is no great danger, as a general thing. Knee-joint is occasionally fractured ; may be from falling upon the ground, but it is rare that it occurs in this way. It is generally from concussion from galloping upon uneven ground ; stepping upon a cobble stone, etc., or from carelessness in turning a horse out to run, after having been stabled for some time. The knee bones may be literally shattered to pieces. The animal cannot mark the limb ; stands with it slightly flexed, and after a while extensive swelling takes place. In such a case, destroy the animal ; but if only one bone is fractured, it it not so easily detected. If you flex the joint,, the animal shows pain. It may be treated with some success. Use a starch or plaster of paris bandage, splints and slings ; but if more than two bones are fractured, there is likely to be anchylosis, and treatment is not attended with much success ; but the animal might do some work if the joint is anchylosed. Hnnierns fracture of the external tuberosity, or from receiving a kick, or from falling. If a small portion is detached, remove it. Metacarpal is usually fractured from direct injury, or from concus- sion. It is generally easily diagnosed. If it is compound, it cannot be treated ; but if simple, it may be treated with success. Keep quiet and place in slings. The small metacarpal bones may be fractured, and set up considerable irritation ; but reunion will generally take place, if the animal is kept quiet. There is no necessity for putting in slings. It may be caused by striking with the hind foot. The animal is extremely lame ; in some cases you may detect crepitation. There is a tendency to a bony deposit in such cases, and if it attains any great size, you may apply a blister, but not as treatment for the fracture. Sesamoid bones act as levers, and are sometimes fractured, transversely. It usually occurs from muscular contraction, and is most likely to occur in race or steeplechase horses. In cases of trans- verse fracture, the limb descends very much, similar to break-down. It might be necessary to treat in a mare or stallion. Get the parts in position as well as you can, keep quiet, etc., and be careful in applying a starch bandage, for great swelling will take place, and may produce gangrene. A fracture here may occur without displacement, when reunion will take place. There is necrosis of the sesamoid bones, from injuring or cutting the tendons. It is very difficult to treat, as there is great swelling, and sinuses are formed. Os-Snffraginis is frequently fractured. It may occur from direct injury, but not so likely as in other bones. It is usually from concus- sion. It may be produced in a horse just trotting or cantering along. It may be treated with success, if simple ; but if compound or com- minuted, it is best to destroy the animal. You may have difficulty in diagnosing. There will be extreme lameness, but slight swelling and crepitation, but in some cases you cannot detect crepitation. Keep quiet and remove the shoe ; bandage with a starch or plaster of paris bandage ; apply carefully, and then perhaps a splint on both sides of the bone keeps it from turning to the sides ; but if it extends down in an oblique direction, into the articulation, it is likely to produce anchylosis and ringbone ; but this does not seriously interfere with the action or work. Oscorona is rarely fractured, but fracture may be produced in the same way as those given, and may be treated in the same way. Ospedis.— Any part of this may be fractured, and it is possible for reunion to take place. The superior process is sometimes fractured, DISEASES OF DOMESTIC ANIMALS. 91 especially if the horse has side bones. It is difficult to diagnose, and you must ju^ge from the manner in which the accident occurred. Keep quiet There is extreme lameness and great pain. He can not mark the limb. This might occur from a nail passing through a por- tion of the bone. If so, it is likely to be followed by intense inflam- mation, and, perhaps, gangrene. It is frequently an act of mercy to destroy the animal. Navicular bone may be fractured, and it is difficult to diagnose. However, you might surmise it from the extreme and continued lame- ness. There is a tendency to an osseous exudation and ringbone. It is most likely to occur in an animal that has navicular disease, and after neurotomy has been performed, as he will not be careful in using the limb, and nervous influence affects the nutrition of a part to a certain extent, and as there is no sensation it is difficult to detect the lesion in such cases. Inflammation and suppuration are the results, or reunion may take place. Femur, — Any portion of it is liable to fracture, the body being the most liable. It occurs from severe exertion or direct injury. It is rare that the neck is fractured, in comparison with the body. Treatment is not successful, but there may be exceptional cases. There is great inflammation. It is generally easily diagnosed. The limb is short-ended. He cannot throw any weight upon it ; and there may be crepitation, but the swelling may be so extensive that it can- not be heard. Trochanter Major.— This may be fractured, usually from the animal falling upon the haunch. There is a difficulty in moving the limb, but he may throw some weight upon it. It is followed by extensive swelling. It may be treated with success. The External Tuberosity may be fractured from a kick, but not usually, but is rather common where carts are used, from falling over the cart shafts. The animal is externally lame— can scarcely move the limb at all. Manipulation of the parts will detect tenderness. Reunion may take place, and there may be necrosis, as in fracture of any of the small tuberosities. Condyle.— Fractured, and extends right into the articulation. Not treated with success. Patella.— It is occasionally fractured ; possibly from severe mus- cular contraction, but most likely from direct injury. It may be either transverse or longitudinal. If the parts are separated there is but little chance of recovery ; it is very difficult in the human patient and is worse in the horse. The only chance is for nature to throw out a large deposit, and this produces anchylosis ; but if there is no displacement it may be treated successfully. It is difficult to diag- nose ; you know that an animal has received an injury, and there is extreme pain, but no great amount of swelling ; you may suspect fracture. Tibia is fractured in a majority of cases from direct injury. The antero-external face is not much covered with muscles, and is liable to fracture from a kick. If the bones are displaced, even in a simple fracture, it cannot be treated with much success in old animals, but it is different in young animals. It is very important, as I stated in regard to the radius, to watch closely any injury to this bone, for it may be fractured and not displaced for several days. The periosteum being uery strong tends to hold the parts in position. The animal stands with the limb flexed ; pressure upon the parts produces pain. If there is no displacement it may be treated. Tie the animal up so 92 CAUSES, SYMPTOMS AND TREATMENT OF he cannot lie down, and it is best to place in slings, for if it is an injury this is the proper treatment anyway. I had a case under treatment ; the owner came and took him, anddrove him some dis- tance to the waggon, and the bones separated. Placing in slings is usually sufficient, but some recommend the use of splints and band- ages. It is also recommended to use a tar cord ; wrap it around the limb from the foot up over part injured. It must be watched, and if swelling takes place, do not allow it to produce gangrene. Fibula. — This may be fractured from falling, or from a kick. It is difficult to detect ; you must judge by the great pain, difficulty in extending the limb, and the lameness, which you must locate by the action, the swelling, etc. It is covered well with muscle, and so crepitation is difficult. It generally terminates favourably. Place in a nice box if he can get up, or if he cannot get up place in slings. It generally takes about three months for it to get well. Hock. — Fracture of these bones occur occasionally, especially of the cudiform bones. It may result from a kick, and have open joint with it, and it may be the result of concussion or sprain. In this case there is usually laceration of the ligaments. You may detect crepitation ; keep quiet, etc. There will generally be a bony deposit, which you may call spavin. Astrag'alus. — If it is fractured there is little use in treating. Os-Calcis is sometimes fractured ; from severe exertion, generally. It is difficult to treat, especially if separated. Place in slings, keep quiet, etc. Fractures below the hock occur in the same way as in the fore extremities, and are treated just the same way, but the treatment is more difficult in the hind limb. Lower Jaw. — It is frequently injured by the action of the bit, either from pulling on it or from the driver jerking, etc The inferior portion is injured by the curb, the superior by the bit, or the jaw may be fractured by the action of a curb and bit. But is not generally fractured, but irritation is set up, and the inflammatory action is kept up, and caries and necrosis are usual. The symptoms are very well marked ; if the irritation is kept up for some time on the outer part, there may be necrosis. In such cases there will be extensive swelling, exudation, etc. Treatment. — Cut in and remove the diseased parts, or it may be necessary to trephine, but it is generally pretty easy to break down the exudation without trephining. Remove any detached particles, or the superior portion may be affected, giving rise to a flow of saliva from the mouth. The treatment is just the same. There may be spicula of bone coming out from necrosis, and not be the result of fracture, but of the inflammation followed by necrosis. Remove the particles, bathe nicely, feed upon soft food for a few days, and it may be necessary to touch the parts with a hydrochloric acid to bring about a healthy action. Nasal Bones. — These are occasionally fractured, usually from an animal coming in contact with some obstacle, as in running away, falling, or colliding with another animal, etc. The treatment must vary according to the injury. If but slight, and the bones not depressed to any extent, just keep the animal quiet for a few days ; but if the bones are depressed so as to interfere with respiration, raise the bones by means of a probe, and then use an adhesive plaster of Burgundy pitch. Or the bones may be literally shattered and not displaced to any extent, and are easily put in position ; but if not put in position, necrosis is apt to take place. DISEASES OF DOMESTIC ANIMALS. 93 Frontal Bones are liable to fracture in the same manner as the nasal bones. It looks like rather a serious injury, but as a general thing it is not so serious as it looks. The treatment varies according to the character of the fracture. As a general thing the bones are not displaced to any great extent ; they may be shattered ; the symp- toms are plain ; in respiration and expiration, the bones may be raised and lowered, and there may be hemorrhage from the nose, but is not generally very serious. Keep quiet and use an adhesive plaster over the frontal bones, either longitudinally or transversely, to keep the bones in position ; but if the bones are fractured and displaced, and there is an opening into the frontal sinus, yet there is no cause for alarm. The treatment is to remove any detached parts, and at first there may be difficulty in getting every piece, but in a day or two there may be some pieces that can be removed. Apply a plaster, leaving a small hole at the inferior part, to allow the matter to escape. In six or eight days there may be diffuse suppuration and it may be necessary to examine closely and remove any pieces, or it may cause nasal gleet. The inner plate of the frontal bone may be fractured, when it is more serious, and generally gives rise to more or less cerebral disturbance. The animal is dull, but can be easily excited. Keep quiet and attend to the cerebral symptoms, and recovery may result ; or he may do tolerably well for some time, and then show cerebral symptoms, and death result. You cannot be too careful with such cases. External Orbital Process. — It may be fractured, but it takes a pretty violent blow. Inflammation is set up, and necrosis is very apt to result, and it is likely to afl'ect the eyeball, followed by slight inflamma- tion and opacity of the cornea. Bring the bones in position ; keep quiet, and perhaps give a dose of physic, and endeavour to remove the irritation of the eyeball by poulticing, opium, etc. Zygoiuotic Process, when fractured, is very likely to be followed by necrosis. Keunion may take place. Keep quiet for two or three weeks ; if not, necrosis is likely to take place, giving rise to an abscess, sinuses, etc.; and necrosis is often the result of inflammation without fracture. Parietal Bones. — Fracture of these is very liable to injure the brain. It is possible for it to occur and not seriously injure the brain, but not very probable. These bones are not very strong of themselves, they are protected by muscles, which prevent fracture to a great extent. Fracture of these bones is generally the result of violent injury, and there is gener- ally more or less concussion of the brain : the animal falls, gets up again, but is in a semi-comatose condition ; exhibits cerebral disturbance now and again. Treatment is not attended with much success ; it is usually followed by inflammation of the brain. It has been recommended to cut down and remove the portion that presses upon the brain, but it is not attended with much success in the horse ; but there may be cases where it is advisable to do it. A fracture may occur and produce cerebral dis- turbance, and the patient recover, but it is not a general thing. • Occipital Bone — the occipital crest. Fracture of this usually occurs from the animal raising the head and striking it against something, or from falling back and striking the ground. If a slight fracture, reunion may take place. An animal may fall or strike this, stun himself, get better and nothing is thought of it ; but irritation is set up ; there is swelling between the ears, suppuration, etc., showing that there is caries and necrosis ; treat as such. I have met with cases where it was neces- sary to remove a great part of the crest ; or scraping will do in some cases. You may have this irritation without fracture. 94 CAUSES, SYMPTOMS AND TREATMENT OP Basilar Process of the occipital bone. Fracture of this occurs from striking the occipital crest, which fractures not the crest, but the basilar process. As a general thing it is speedily followed by death. But it is possible for it to occur and produce concussion, and the animal recover. It is not uncommon to find an animal killed from rearing and falling back, and striking the occipital crest. By opening the mouth you can perhaps detect it. Lower Jaw may be fractured in various ways— from being kicked, getting fast. etc. It is a serious injury ; but we meet cases where reunion will take place if it is a simple fracture. Feed upon sloppy food, just enough to sustain life without calling the muscles into action. Use any means of keeping the bones in position. Some advise what is called a cradle, which is just made to fit the jaw. It may be made of gutta percha or of bass wood. It is necessary to apply it to the sound side as well as to the affected one. Pad the cradle nicely with tow or cotton. The porous substance, I think, is preferable, as by heating it can be brought to the exact shape of the jaw. It is necessary to keep the cradle in position, which is done by straps, one behind and one in front of the ears, and an elastic one lower down, so as to allow the action of the muscles, and exercise your ingenuity the best you can. If the bones are not misplaced, treatment is not so difficult. In fracture of the nasal bones, it is sometimes necessary to insert a plug, but only on one side, as the horse can breathe only through the nose. Either of the maxillary bones may be fractured, in about the regions of the incisors, possibly, but rarely, from falling, but it may be done from getting fast. If it is but simple, keep the bones in position, keep quiet, feed upon sloppy food, and give but little food for a few days, and apply a small bandage around the under jaw. A piece may be almost detached, in which case it is generally best to remove it, even two or three alveolar cavities. Head of the Ox. — It differs in arrangement of the bones. The ox uses his head for offence and defence, and the bones are stronger. The crest is formed of the frontal in the ox, and in the horse it is formed of the occipital. There are numerous sinuses, and the brain is more pro- tected than in the horse. Extending from the frontal bones are the supra- orbital processes. Fracture may occur in connection with these parts, or of the frontal bones, but it is extremely rare. But the flints are often injured. The first appearance of a horn or flint is about the fourth or fifth month of gestation, and about the ninth month there are small pro- tuberances, which puncture the skin, and they grow until the animal is about three years old or more, and in some cases gain a considerable size, and are absent in some cases. It is supposed that at one time all breeds had horns, but by certain modes of breeding the poll cattle were produced. Texas cattle have enormously developed horns. In Abyssinia they gain a great size, and some cattle are raised for the horns. The growth of horn interferes with the development of the body. The food take a goes to develop horn. The horns are largely supplied with blood vessels, so that in examining we place the hand at the root of the horn to asceitain the state of the circulation. It is a very tender part. A slight blow upon the horn produces great pain. The horn may be completely knocked off, and this may be followed by con- siderable hemorrhage, which can be reduced by bandaging and using styptics, as iron or acetate of lead. A tar bindage is recomiiended, but it may interfere with the development of the new horn. A new horn is sometimes pretty well developed— blood is extravasated, and, by and by, absorbed, and horn is produced. There may be fracture and no displace- ment. In fracture, get the parts into position, and keep them in position. DISEASES OF DOMESTIC ANIMALS. 95 There may be abnormal growths upon the parts, attaining a considerable size. It is generally best to prevent this by caustics, or cut it off com- pletely, especially if it attains an unsightly mass. Saw it right off, and exclude the air by putting tow iu the place, which may be saturated with carbolic acid. There is connection from the nasal chambers right up almost to the tip of the horn. Sometimes, when cattle have catarrh, it is apt to be followed by chronic inflammation of the lining membrane of the horns, giving rise to nasal gleet. This is more likely to occur in poorly kept cattle. The animal carries the head to one side, and in some cases the horn will literally fall off. This has given rise to what is called hollow horn. However, the horns are naturally hollow — more hollow in old or debilitated animals than in young healthy ones. If matter accu- mulates in the horn, make a hole and let it out ; but if it accumulates to a great extent, I think it is better to saw the horn right off. When the horns are shaping, it is possible to make them almost any shape desired —being directed by means of tubes — and gutta percha horns have been so placed as to puzzle good judges until the award had been given. In the horse we detect the age by the teeth. The same applies to cattle, but in cattle you can form a very good idea by the horns. The first ring forms when the animal is between three and four years old, and one ring each year after. If there are three rings the animal is six years old. But this is not entirely correct. The rings may be filed or sand-papered down, and it is well to look at the teeth. Other bones of the head may be fractured, but it is not very common. Osteo Sarcoma is very common in cattle. It is found in either the lower or upper jaw, mostly in the lower jaw. There are sometimes grubs in the sinuses of the head ; they get in the same as the warble ; the larvae is deposited, and it gives rise to the grub. This is different from the hydatid, which gets into the circulation by way of the food. Osteo Parosis may be described as a non-inflammatory disease of bone, and is more common in some localities than others ; comparatively rare in Canada, Britain and Europe. It is found principally in the United States, but it may be found in Mexico, etc It may be characterized as a disease of growth, as it rarely attacks an adult animal, and if it does per- haps the disease was there in early life. It attacks them from several months until three or four years old. I think it has been noticed in the human being It is due to an excessive development of the tissues which occupy the canals and cells of the bone. The walls of the cavities be- come thinner and thinner, until the cavities communicate with each other. It is due to development of the vascular and fibi'ous structures without a corresponding increase of the osseous and cartilaginous con- stituents ; although the bone is increased in size it is lighter ; in this it differs from osteo sarcoma, in which it is increased in weight. In osteo parosis the bone becomes brittle ; it generally shows itself first in con- nection with the cancellated tissue. Big head is a name applied to it, from its attacking the head, and the bones increasing in size. It is not confined to the bones of the head, but it also attacks the long bones, and takes on just the same form ; the least injury will break the bones, from their fragile condition. It is sometimes difficult to give the distinction between osteo sarcoma and osteo parosis. CaM5^5.— It is difficult to say what are the causes; there are various opinions ; some say it is from animals grazing upon land deficient in salts of lime, but it is common in Kentucky, and that is a limestone country : there is lime in the water to such an extent that animals frequently suf- fer from urinary calculi. I think it is due to grasses on low lying swampy lands. The grass grows luxuriantly, but does not contain the 96 CAUSES, SYMPTOMS AND TREATMENT OF constituents for the proper development of bone. Grain is also liable to produce it; it is possible that there exists a slight difference in corn grown in different localities. It is enzootic. In early days some places proudced this disease, and as soon as the country was cleared and drained it was not so common ; in Canada this is the case. I have known some affected in the South, and brought north to Canada, and a great improve- ment was the result. Horses that suffered from miasmatic influences in the South came north and became valuable. I have seen two cases, both of which were fed on grasses grown on low lands. Symptoms are perhaps not very well marked. The animal is occasion- ally dull, the appetite impaired, iDut not gone. The colt does not ramble and frolic about as in health ; it slowly loses flesh. The muscular sys- tem becomes soft. It shows itself more in the head, and the long bones containing much cancellated tissue ; the belly is tucked up. These symp- toms may exist for some four or six months before the true nature of the disease shows itself, then there is enlargement of the bones of the head ; a close examination showing one side larger than the other, perhaps the bones of the jaw just thickened slightly ; but there may be considerable change without enlargement The superior maxillary is generally the first affected ; but the limbs become affected ; the animal moves with difficulty, with a sort of stiff action (not a real lameness), and is not well marked until the disease reaches a certain stage ; as the disease ad- vances, the symptoms increase ; the bones enlarge until they sometimes interfere with respiration, and I believe there is more or less discharge from the nose ; and you might think the animal was suffering from matter in one of the sinuses, but it is not confined to one place ; the whole of the bone is enlarged ; the humerus shows an enlargement, if closely examined. There is no great harm in trephining the sinuses, which is easily done. The circulation is very weak, but not quickened to any great extent. These symptoms continue, and the animal may die from enfemia or from fracturing some of the bones, perhaps just while walking along ; or, it may die from exhaustion. Treatment is not generally attended with much success, and if the disease goes on to any great extent, it is best to destroy the animal ; but if in the earlier stage, change the food, and if possible remove the animal from the place where it has been, and recovery may take place. Give food of the very best quality ; use mineral acids ; or, you may try just the opposite — alkaline salts, which some recommend ; try tonics, such as iron, and if one does not benefit, try some other ; but I think the great secret is in the change of food and locality. In summer turn on pasture, and give some oats. Splint. — An inflammatory disease of bone. It is an exostosis or bony enlargement, between the inner small and the large metacarpal bones, usually about the lower part of the upper third, but it occurs in different places, lower or higher. Horses used upon the hard road are perhaps oftenest affected. It does not often prove very detrimental, but according to its situation is productive of more or less harm. If it is close to the knee, it is apt to set up more or less irritation in the knee joint. Pathology. — It is due to circumscribed inflammation of the periosteum and bone, and a slight irritation may produce this in the inner layer of the periosteum. It is sometimes due to inflammation of the periosteum without the bone being affected. It is oftener met with in young animals, owing to the periosteum being more vascular, the exudation more abundant, and more readily converted into bony material, but it may occur in old animals. DISEASES or DOMESTIC ANIMALS. 97 Causes are predisposing and exciting. Certain breeds are more liable to splint, spavin and ringbone; a small limb below the knee is more liable ; it is hereditary or predisposed ; the mode of usage, as irregular usage ; a very fat animal, especially if light limbed, is liable to a splint. The exciting cause : fast riding or driving upon hard roads. It is oftener found in these than in race horses, because their work is upon hard roads. Perhaps one-third or one-half of the young horses coming into the city of Toronto have splints, from the character of the streets. The mode of shoeing has a tendency to produce it. A heavy shoe, which subjects the bone to concussion, a blow or striking with the foot, etc., at first gives rise to a slight serous abscess, and afterward to a well marked splint. It may occur on the outside of the limb, even in a well formed limb, but it is more apt to come if the animal is slightly intoed, or as the result of direct injury. They are sometimes seen on the metatarsal bone, and may give rise to lameness which is difficult to locate until a deposit is thrown out. It will be nearly the lameness of spavin. Splints sometimes attain a great size without the horse showing much lameness ; in other cases the lameness is severe. Lameness is, in most cases, due to an inflammation in the periosteum and bone. It is said to come from the deposit coming in contact with the ligaments, but the hard parts generally give way to the soft tissues. A splint may extend right across the metacarpal bones, affecting both sides of the limb, and is called a double splint. Symptoms. — It is easily detected after it attains some size, and by its great size it is sometimes taken for the cause of lameness when it is not. A small splint oftener produces lameness than a larger one. It is most common in young horses up to three, four, or five years old. The action of an animal with splint is peculiar, and after seeing one or two cases you can then recognize it. When walking he will go tolerably sound ; will not flex the limbs as much as natural. If trotted at a moderate pace he drops extremely. This dropping is symptomatic of splint lame- ness ; if it is present examine carefully ; run the hand carefully down the inside of the limb ; press carefully with the fingers ; if a slight enlarge- ment is felt, and the limb is lifted, then press more, and then trot him, and if the lameness is more it assists you in determining the disease. The foot is not hot. It is a very good plan to take a small piece of wood and tap upon the bone, just gently. The animal lifts the foot and exhibits considerable pain, and you can judge much by the age of the animal. Treatment is, as a general thing, successful. Give rest, if you can, but you will sometimes be able to treat without laying off work. If in a horse three or four years old, give a laxative diet or a dose of physic. Cold applications are beneficial, and cold water applied for an hour at a time, two or three times a day, will cause the exudation to become con- solidated, and complete union of the two bones takes place, and the tenderness and lameness are removed. Hot applications are also useful ; but you can, in most cases, get rid of a splint quicker by a blister than by any other way. Use one part of biniodide of mercury to four of lard. Seatons are useful, especially if the splint is near the knee. In- sert it and leave it for three or four weeks ; take out and then apply a blister. The firing iron is recommended, but I do not recommend it un- less it is the bunting iron. As a general thing they will give way to the treatment I have given you. Periosteotomoy is useful in a case suddenly developed in a horse in good condition — five, six, or seven years old — but if it has a tendency to attack both sides, it is not attended with much success. Just make an incision through the skin : insert your knife and 5 98 CAUSES, SYMPTOMa AND TREATMENT OF make an incison through the periosteum, then foment and poultice, and, perhaps in some days after, bHster. Some recommend a seaton instead of a blister. There is no necessity for blemishing an animal for splint. Such a cure is often worse than the disease. There may be cases where it is necessary to use the bone forceps, or the bone saw, or if a spiculum of bone projects, cut down and scrape it. There are dififerent opinions as to whether splint is or is not an unsoundness. If I find a splint in the usual place, with no pain nor lameness, and not likely to become lame, I would pass him as sound ; but if a splint is well marked, I might mention it to the party, and say it is not likely to ever lame the animal. But if you find a splint close to the joint, in a horse four or five years old, although he is not lame, I would not pass him as sound. Take into consideration the form of the limb, the place of the splint, etc. Sore Shins. — Inflammation of the periosteum of the metacarpal bones. This inflammation more of a diffused character than in splints. It is common in some parts of the country, and is. becoming more common in racing horses. It is rarely met with in horses used for ordinary purposes. Pathology. — Inflammation is set up in the periosteum. The result is an exudation between the periosteum and the bone, and not only this, but between the periosteum and the areolar tissue, with which it is in close connection ; thickening of the periosteum ; and if the exciting cause is kept up, it may cause partial necrosis of the metacarpal bone ; but this is rare. Causes are violent and continued concussion, to which horses are sub- jected in training, particularly young horses, in which the periosteum is very vascular. It may occur in old horses, but usually in young ani- mals. Predisposing causes — taking a colt in a heavy gross condition ; putting him to work without first getting in condition for it, by a dose of physic or exercise. The concussion sets up this irritation. Symptoms are very plafn after a time, but at first it is hard to account for the lameness. The lameness is seen some time after the exercise. The inflammatory action becomes more severe if the exciting causes are kept up. He drops very much the same as in splint, and you can notice an enlargement on the front of the bone. Pressure upon it causes pain. There is increased temperature of the parts. If the exciting cause goes on, the exudation increases more and more, and the animal suffers great pain. I have seen some so severe that, after being handled once or twice, if you but pointed at it, the animal would run back. Sometimes one and sometimes both limbs are affected. There is a peculiar action. I have seen horses severely blistered upon the shoulder when nothing was the matter but sore Fhins. By and by the- exudation becomes organ- ized, producing a well marked case. This exudation will always remain, which can be detected by examining ; but the lameness ceases, and it is not counted an unsoundness. Treatment. — If taken in the early stage, it is easy to reduce the inflam- matory action. Give rest ; give laxative medicine in some cases. If the animal has been fed upon stimulating diet, change it. Apply cold to the parts. Give nitrate of potash, one ounce ; salammoniac, one ounce, in water. Use acetate of lead, and if there is much pain, combine it with opium ; or use equal parts of the tincture of opium, camphor and arnica. After the pain and inflammation are relieved, apply a blister, which will relieve it better than anything else — and I cannot recommend any better blister than biniodide of mercury, one part, to four, five or six of lard, according to the case, and rub in well, and let it extend up the limb for DISEASES OF DOMESTIC ANIMALS. 99 some distance. Keep it on for a day or two, and wash off and blister again, as the ease demands. Give gentle exercise, and in the summer use plenty of cold water. It may be necessary to make an incision into the part, but such cases are rare, but if there is great exudation it might prevent it from becoming organized. "You may meet with a case in the hind limbs from other causes, as in jumping fences and striking with the limbs. The result is extensive swelling, and benefit is sometimes derived by making an incision. There is no specific for sore shins. It is hard to say how blisters act, but they are attended with benefit. We find also a slight inflammation set up in the upper part of the fetlock joint, and again it may be right above the knee— the result of concussion — and a large bony deposit may be the result. The symptoms are nearly the same ; it is difficult to locate the lameness. For some time he can walk tolerably well, but drops much if trotted. It will disappear after a while, and if allowed to stand it returns. Treatment. — Give rest, fomentations, cold applications, and blister, and it might be advisable to make an incision, but be careful, especially if in the neighbourhood of articulations. What is called obscure lame- ness is often inflammation of the periosteum of the foreleg. Ringbone. — This is a common disease ; it is an exostosis situated in the region of the pastern joint, the articulation between the oscorona and ossuffraginis. Eingbone is applied to any exostosis in that quarter, but if it is just upon the bone and does not involve the articulation it is not very serious. It may affect any limb, but oftener the hind limb. Inflammation is set up — it may be in connection with the cancellated structure at the extremities — and gradually extends and destroys the articular lamella and articular cartillage. Nature, in endeavouring to overcome this, throws out material which becomes converted into bone, and anchylosis is the result. At the same time there is an exudation thrown out between the periosteum and the bone, and there may be exostosis without the true joint being affected. Complete union of the pastern joint is the result of ringbone in some cases. The exudation extends around the articulation, hence the name ringbone. Causes. — I believe it is hereditary, and comes by breeding from weak, sickly animals, predisposed to ringbone. Certain grasses may have a tendency to produce it. The exciting causes are hard and fast work, especially in young animals ; direct and indirect injury ; injury to the articulations. An injury to the foot may produce it- a nail in the foot, causing the animal to stand on the sound foot for weeks and weeks, may produce it in the sound limb. Another is farmers allowing foals to run after the mother while at work. Symptoms. — If of any size it is easily detected. When it is forming the animal is more or less lame ; but sometimes a deposit takes place of a soft character, and this becomes converted into bone without much lameness. The lameness precedes the enlargement for some time, and it is difficult in such cases to say just what the irritation is There is heat around the hoof. You may, after some time, detect an enlargement, and flexing the articulation gives pain. If it involves the articulation of the ospedis in the fore foot, the animal will walk on the heel, similar to chronic laminitis, and the hoof, stimulated by the inflammation, has a tendency to grow in rings. Treatment is not very satisfactory in many cases. The treatment must vary according to the disease going on in the bone. If in a young animal, and the articulation is afl'ected and the hoof out of shape, bring the foot in shape the best you can ; allay the irritation by hot or cold applications, and then blister, Seatons and firing 100 CAUSES, SYMPTOMS A>fD TREATMENT OF irons may be of benefit, and you may be justifiable in performing neurotomy. The firing iron is generally the most potent. Now these remedies act by setting up a new inflammatory action, the result of which is reproductive material thrown out, producing anchylosis of the articu- lation ; after which the irritation ceases, and the enlargement may be reduced to a certain extent, but not completely. Cutting the "feeder" of a ringbone, as some say, may prove beneficial from the irritation set up, not from taking away the food of the bone. Even blistering and firing in some cases have but little effect. Side Bones. — This is ossification of the lateral cartilages. This is different from and more simple than ringbone. It is oftener met with in heavy breeds. As well as being ossified, they become enlarged, producing an osseous tumour. This is not uncommon in the heavy Clyde horses, and in them it does not so seriouslj^ interfere with their usefulness. It is more apt to set up irritation and cause lameness in light driving horses ; and if you are examining such, and side-bones are present, condemn him ; but in a heavy horse, just acquaint the parties with it, as it sometimes gives rise to lameness. Such en animal may be affected with corns, and if so, the irritation is severe. Treahnent. — Cut the under portion of the hoof well down under the side bones ; reduce the irritation by poulticing ; use hot or cold applica- tions, and follow by a blister. It is not often necessary to have recourse to firing. Use a bar or three-quarter shoe. Osteophytes. — A slight exostosis involving the upper part of the fet- lock joint. It is at first merely inflammation of the periosteum. It is common in race horses. The symptoms are peculiar. If the horse gets a hard ride, there will be great lameness and heat in the parts. You might almost think some of the ligaments were ruptured. So long as useful for moderate work, he seems almost sound, and you may have difficulty in diagnosing. Although extremely lame, he will be much bet- ter after standing over night. After a few days, having hard work, it will again show itself. These enlargements may attain a considerable size. Give rest, foment, etc., and follow by a blister. Splints that have to be treated while the animal is at work may be treated by cold water or a mild ointment of mercury, not a blister, but a stimulant. There are bony deposits in connection with the ligaments and tendons. These osteophites may appear in other parts of the body — deposits, such as a tooth, may be found in various parts of the body. Spayin. — When we speak of spavin without any distinction, we mean bone spavin. It is an exostosis or bony growth, situated on the antero- internal part of the hock joint, and may or may not be accompanied by caries of the internal structures. There are two kinds— one from inflam- mation of the periosteum, which is confined to the external part of the joint ; the other arising from the internal parts, giving rise to caries. A slight blister applied in one case will relieve ; in another it will not. The one case was external, the other internal. The hock joint is complicated and beautiful ; the bones are so arranged as to give great power ; yet, by the great strain, they are frequently diseased. There are different articu- lations — the true joint and the gliding motion between some. If the joint is much affected, action is also affected. Spavin occurs on the inner side of the limb, as it is near the centre of gravity. It is found in connection with the cuneiform, magnum, medium, and parvum. Pathology — If it is high up, it is not so easily treated as if lower down. A low spavin is in the small articulations. A high spavin is about an inch higher up — not very large, and generally associated with caries. If it occurs when the horse is five or six years old, low down, there is a DISEASES OF DOMESTIC ANIMALS. 101 chance for successful treatment ; but if higher, and there is much heat in the joint, it is much more tedious to treat. It may be produced by inflam- matory action set up principally in the periosteum, and in some cases a comparatively trivial cause ; but if the lameness is more severe, it is likely the inflammatory action is set up in the internal part of the bones. There is an exudation thrown out between the bones, and also between the periosteum and the bones, and sometimes complete anchylosis of the articulations is the result. Spavin may involve more or less of the entire gliding articulation, or even the entire articulation. You may have anchylosis of the cuneiform bones without any external deposit. Causes are predisposing and exciting. The first are either constitu- tional or local. There may be an ossific diathesis, or from the formation of the hock. A narrow hock from before back, and a long metatarsal bone, predisposes to it. The exciting causes are hard and fast work ; driving a young horse fast upon hard roads, especially if not in a fit con- dition ; or a severe strain, setting up irritation in some of the little inter- osseous ligaments, extending and involving the entire joint ; and it is sometimes the result of undue weight upon the limb. Anything that will set up concussion will produce it. Shoeing is said to be a cause, as with high-heeled shoes extreme flexion causes irritation of the cuneiform bones, and proves an exciting cause. Eeceiving an injury to the foot, causing the weight to be thrown on the sound limb for eight or ten days, pro- duces concussion, and spavin results. Hence the necessity for using slings in cases of injury. Symptoms. — If it is large it is easily detected. But we sometimes meet a case of lameness where the inflammation is going on and there is no enlargement. Look at the natural hock ; look at the bones in their natu- ral condition - at their natural prominences — and endeavour to become conversant with the natural appearances of the hock in a healthy animal. There are certain prominences under the malleolus, and they vary in size during health — in some small, in others larger— and it is not a bad sign to see them well developed. The lameness, in most cases, precedes the exostosis. The lameness is characteristic, and is best seen when the animal is first brought out of the stable. After driving for some dis- tance it will, perhaps, disappear, and will show no more lameness during the day. And sometimes there are cases where the exostosis attains a considerable size without the horse being much 'ame. A pretty good way of detecting it is by the eye (but this will not do to rely on in all cases). Make him stand square upon the limb, and throw his weight upon it, and stand just to one side of the horse in front, and take a look from the internal malleolus down, and look through between the fore legs from behind, etc. But just standing about eighteen inches to one side the horse's head is a very good position, and then draw the hand carefully over the hock. If it is the left leg, just pass the right hand down over the hock, and you may detect a bony enlargement and heat in the parts. If the animal is standing, he will flex the limb to some extent. In a case of long standing there are other changes. The whole nutrition of the limb is affected, and there is casting of the muscles of the haunch ; and this may mislead and cause you to think this is the cause of the lameness. He walks upon the toe to a great extent. Turning the horse from side to side will assist you in determin- ing the seat of lameness. If it is slight you must judge, to a great extent, by the action of the animal, and you must be careful if the horse has a very large spavin, and becomes suddenly lame, for it may be that the animal has picked up a nail, and in such a case you may overlook the true seat of the lameness — more especially if he is extremely lame. It is 102 CAUSES, SYMPTOMS AND TREATMENT OF good practice, in many cases, to take a look at the foot, for I have known blisters applied to the hock when the trouble was in the foot. Treatment. -It is difficult to say whether you can cure or not; you cannot restore the limb to its natural condition : so far it is incurable, nevertheless if the animal can be got to go sound it is what we call a cure. We cannot take off a spavin, but hydrochloric acid will take off the enlargement to a certain extent, and it acts beneficially as a counter irritant. The best treatment is to give rest, and if the feet are out of shape bring them into shape the best you can. Some recommend a cer- tain kind of shoe— a high heeled — but I think it best without any shoe. Keep in a box or stall in preference to turning on pasture. Those who have become proficient in treating spavin have become so by devising means to keep the articulation quiet. If there is acute inflammatory action use hot and cold applications, and follow by counter irritation with mercury and cantharides, or you may use eupherbium, or the firing iron. If there is an exostosis, and the articulation not much affected, you may use the small bunting iron ; just make one or two points, but not too close together, and blister after a day or two, but not very severely. If the whole articulation is affected, fire clear around the articulation. Seatons are also good. Some object to a blister ; then use a seaton. Some recommend dividing the tendon of the flexor metatarsi, and this might be advisable. Punching was at one time practiced to a great extent ; take a punch and strike it with a mallet. Caustics have also been recommended, but they are hard to control, and are likely to cause extensive sloughing. In examining for soundness you must look to the hock, and if you suspect anything wrong, before giving an opinion, allow him to stand quiet for an hour or two, and notice whether he flexes the limb. Make him stand from side to side, then bring him out and notice his action, and take plenty of time in giving an opinion. If the bones are larger than ordinary, or larger in one hock than the other, it is a little suspicious. The peculiarity of the lameness of spavin is dragging the limb to some extent. If trotted, there is a well marked raising and dropping of the haunch, and it takes practice to locate this lameness, and often a person of experience may be mistaken. Walk him back and forth, and when 80 doing, watch the haunch rise and fall. The affected limb will be flexed when the animal is standing. Inquire how long the animal has been lame, for it takes some time for wasting to occur in spavin ; but it may occur from severe injury quite quickly. In some cases there may be a thickening of the skin, which looks much like spavin. The Treatment consists in a counter irritation in some form or other. In treating, when you have plenty of time, keep the animal quiet for a few days before applying counter irritation ; also get the foot in shape and keep the shoe off in a majority of cases; however, some recommend shoes. The firing iron is generally the most potent ; its action is not only superficial, but extends and involves the bones to a certain extent. Fire entirely around the joint in some cases, and pretty severely, if neces- sary. We do not fire to get rid of the enlargement, but to set up an in- flammatory action and hasten anchylosis. In firing, you may take the strokes in any direction you like, but not too close together, as it might cause sloughing. It is a question whether it is best to apply the blister immediately after firing. The blister will not act so readily as it would after three or four, or even six days. I think it is best to wait ; it has a better effect, I think. But if you only fire one or two lines, then you may blister immediately ; but if you fire extensively, wait some time. If you use the pointed iron, endeavour to insert it right into the exostosis, DISEASES OF DOMESTIC ANIMALS. 103 and as a general thing it does not blemish. There are other irons with a number of points, which may be used, but it is likely to cause sloughing. The punch is also used, and it is better to knock it in with a block of wood than with a hammer. A seaton is another form of counter irrita- tion. It is beneficial, and sometimes preferable to the firing iron, for the firing iron will blemish if you fire severely, and if you fire only slightly, you might as well blister. In inserting a seaton, you may or may not have to cast the animal ; just make an incision with the scissors, and insert the seaton, and keep it stimulated with a weak solution of bin- iodide of mercury. Take into consideration the animal, and also the owners of the animal ; if seatons have been used in that locality, use seatons. It is recommended to cut the tendon of the flex or metarsi. This would be successful if it was due to pressure of that tendon ; but if it comes from the internal parts, it will, of course, do no good. You may often feel perplexed in examining for soundness. If a horse is eight or nine years old, though spavin is present, it does not interfere much with his work, yet is an unsoundness ; but in a horse three or four years old, it is likely to produce more or less lameness. WOUNDS. A Wound is a solution of continuity in soft parts, and wounds are of various kinds — as incised, lacerated, punctured, contused, gun-shot and poisoned. Incised. — An incised wound is where the tissues are smoothly divided with a cutting instrument, and its length exceeds its depth. If it is par- allel with a large muscle, it does not, in some cases, prove very serious ; but if across the muscle, a great gaping wound is the result. A Punctured wound is produced by a sharp or blunt-pointed instrument, and the depth exceeds the length ; and this is more dangerous than an incised wound, for the tissues are pierced to some depth, the matter which forms does not escape freely, and sometimes results seriously, and, as a general thing it requires to be carefully looked after. In a lacerated wound the skin is torn as well as cut, as in one horse kicking another in the haunch with a sharp shoe. Lacerated and Contused. — In these the hemorrhage is not so great as in incised wounds for the parts cause coagulatittn of the blood. Contu- sion is where the parts under the skin are injared without the skin being cut A horse, in traveling, strikes the limb, and affects the tissues but not the skin. It is often seen in man, as a black eye There may be effusion or laceration of a vessel — ecchymosis is the result. It may run to effusion or serum, or to suppuration. G tin-shot wounds are seldom seen, except during war. Poisoned wounds are caused by some poisonous substance. The min- eral acids act in this way, and, if freely applied, are apt to set up exten- sive irritation. I saw one case where there was extensive sloughing from binding a toad to a split. Treatment of wounds of course varies to a certain extent, but there are certain general principles necessary. If the wound is extensive, and hemorrhage is present, first arrest the hemorrhage, and the most surgical way is to apply a ligature to the artery. But we sometimes find this difficult, especially in wounds about the feet, and we are able, in many cases, to arrest it by other means. Compression, in many cases, will do, the result of which is coagulation of the blood. Or styptics may be used — an excellent one is the tincture of the chloride of iron. Moderately 104 CAUSES, SYMPTOMS AKD TBEATilENT OF warm water will answer in some cases — in others cold water will do. Or use acetate of lead and tow, and allow the blood to coagulate in the tow, and then it will coagulate in the vessels ; and there are many other styptics. After arresting the hemorrhage, carefully cleanse the wound with cold or tepid water, and, if a lacerated wound, endeavour to find how it was produced, and if by a sharp piece of wood, it may be that some of the wood has been left in the tiesh, which must be removed. The next thing is to bring the parts together. If the wound has been produced for some time, perhaps the hemorrhage has ceased. Some say it is not best to bring the edges together immediately, but leave alone and allow all dirt, etc., to escape ; but, as a general thing, sew it up immediately, using a Suture, of which there are different kinds, the interrupted, uninter- rupted, quilled, twisted, and false. Use a needle to correspond with the size of the wound. You may use the metallic wire, silver wire, silk threat, or catgut. The metallic wire answers very well. Catgut is use- ful, especially in abdominal wounds, and it is useful to saturate it with a solution of carbolic acid. The interrupted, or glovers' stitch, is generally the best. If a large wound, look at the manner in which it took place, and determine where to make the first stitch ; leave a small part near the most dependent part, for if stitched up closely serum accumulates and irritates it. The Twisted Suture. — This is done by inserting pins and wrapping thread on them in the shape of a figure eight ; you can use a pin director, passing it through with the pin in its groove. Again, we have the quilled suture, which is used in an injury to a large muscle, where the skin is injured to a great extent It is done by laying quills or pieces of wood on either side, and the sutures are tied over them. It requires some practice and some nerve to sew up a large wound. I find, as a general thing, that if the horse is irritable it is good to lay good pressure upon the part, and take a good hold on the skin, and if the animal jerks you are not so liable to let go ; and pass the needle quickly, as the irrita- tion causes the animal to jump. Bandages are also used. Plasters may be used in some cases. Bandages are apt to do more harm than good. There is another method which is used, which does not look well but is not a bad plan : take a strong piece of ticking and attach it to the skin, back from the wound, by means of Burgundy pitch, or other adhe- sive plaster, and bring the parts together by means of this. The stitches do not generally stay loo long, but come out of their own accord, and the trouble is to get them to stay long enough. If the wound is around the eye, the smaller the needle the better, and I like silk thread for a suture very well. There is a great difference of opinion with regard to the after treatment, even among eminent surgeons. Some recommend exclusion of the atmosphere and anti-septic dressings, some say they do better exposed to the atmosphere ; some think water dressings are the best, others think not. In our patients it is difficult to exclude the air, but in human practice this is invariably done. 1 do not believe the atmos- phere interferes with the healing of a wound in most cases. In some cases we can and do cover up, and find the healing process retarded in- stead of expedited. We hear of applying turpentine or black oil to wounds, but if you apply anything to a wound use some slight astringent. The white lotion is used more perhaps than any other remedy. It is made of six drachms of sulphate of zinc, one ounce acetate of lead to one quart of water, or it may be applied stronger. Carbolic acid one part to forty of water, or some recommend oil with the carbolic acid, bat water is better, as oil causes dirt to adhere to the wound. I do not recommend Diseases oS" Domestic animals. 105 oleaginous preparations. It may be advisable to use an ointment, but that is the exception and not the rule. A good preparation for certain seasons of the year is tincture of benzoin, oil of tar and linseed oil. It forms a coat, keeps out the air, etc., and seems to be of benefit. In a lacerated wound where there is extensive suppuration, use astringents ; and sometimes you find granulations or proud flesh, and sometimes the wound becomes indolent. The white lotion, sulphate of copper, tincture of iron, butter of antimony and carbolic acid of moderate strength, are of benefit ; after this treat as a fresh wound. It is necessary to attend to the constitutional treatment in some cases, as well as the local. If the animal is in high condition administer a laxative, restrict the food, etc , while in others feed well on the best of food. In moderate weather hot or cold baths are often attended with benefit. Modes of Healing^. — These vary according to the wound and the con- dition of the animal. First, by immediate or direct union ; this can take place only in an incised wound ; the parts come together ; a slight exudation is thrown out, and healing takes place very quickly. This sometimes takes place in pinning up an incision. In bleeding, this little exudation glues the divided surface together ; but in a wound of any size it does not take place. This may take place in twenty-four or thirty hours ; but there must be certain conditions, or this cannot take place ; there must be absence of inflammation, healing by adhesion or first intention. Incised wounds frequently heal in this way. In such cases a small amount of blood is extravasated. It becomes converted into new tissue, and the divided edges of the wound adhere together. The irrita- tion is not very extensive. Again, there is healing by the second inten- tion ; this is inore tedious. In a lacerated wound or a large incised wound, when there is motion, this is the mode of union ; the edges of the wound are brought together ; in a short time serum is discharged profusely, and there will be a coat of this serum over the wound, and it is supposed that the leucocytes going to form new tissue are converted into pus corpuscles, and profuse suppuration is the result ; little red emi- nences appear, and if removed or hurt, are found to be extremely vascular ; they bleed readily. These are the granulations, and this is the mode of healing in lacerated wounds. In this manner loss of structure is repaired. There is also healing by scabbing ; it is well noticed in our patients. In case of a slight wound, the parts are brought together ; a little fluid exudes and covers it over, which will, perhaps, remain and form a scab, and it is very favourable in many cases. This shows the necessity of allowing the blood to remain ; and we sometimes form an artificial scab of callodium or carbolic acid and oil, which, in some cases, favours healing. INJURIES AND DISEASES IN THE REGION OF THE HEAD AND NECK. The first I will notice is PoU-eyil, so called from its occurring in the region of the poll. It is not a constitutional disease, but comes, no doubt, from well-marked causes — from inflammatory action set up, involving the muscles of the region of the poll, aijd, perhaps, the ligamentum nuchas. Owing to the low vitality of the parts, and the motion of the head in taking food, etc., the matter is apt to burrow deep in the muscles. The Pathology is just inflammatory action, set up in the region of the poll. Such an inflammation may terminate in resolution, but it is very likely 106 fiAtSfiS, SYMPTOMS AND TREATMENT OP to terminate in suppuration, and anchylosis and necrosis of the bones are frequent. Causes. — It is usually the result of direct or indirect injury. A com- mon cause is striking the head against a low door-way ; another is an ill-fitting head halter or bridle, or a yoke put on to prevent him from jumping, or any foreign body puncturing the muscles, or fracture of the superior spinous processes, which are likely to become necrosed, and set up inflammation ; unnaturally tight reining is said to be a cause. Symptoms. — There is more or less swelling ; the animal stands with the nose out ; slight heat in the parts ; pressure upon the parts causes pain. In the first stage it is merely inflammatory action. The second stage is suppuration, and there may be great swelling in some cases, when there is but little matter formed. In other cases there is diffuse suppuration, and the matter makes its way out and dischages to the sur- face, and sinuses are formed extending in various directions, and some- times the exudation becomes organized and produces an enlargement. Any abscess in this region is called poll-evil. Treatment. — If called before suppuration has taken place, while in the inflammatory stage, just apply remedies to bring about resolution ; foment and keep the animal quiet ; keep the head tied up and poultice with linseed meal, bran, boiled turnips, etc., but do not apply a heavy poultice, but just enough to keep moisture and warmth to the parts. Use a mild liniment -the camphorated is good. Sometimes the inflam- matory action ceases, and the skin remains thickened ; then use a blister One part each of iodine and iodide of potassium to four of lard, is of benefit. But after the inflammatory process has terminated in suppura- tion, the treatment is different. It should be to make a free incision, and allow the matter to escape freely, and if this is done in proper time the sinuses will not often form ; tie the head up, and prevent motion. If an animal is turned on pasture, the sinuses are more likely to form from the continued motion. Syringe the parts out well with tepid or cold water. Use carbolic acid — one part to twenty, thirty or forty of water; or corrosive sublimate— five grains to an ounce of water. But if sinuses are formed it is still more diflicult. It may be treated by caustics, corrosive sublimate, nitrate of silver, etc., but I recommend the free use of the knife. It is generally advisable to throw the animal and, in cutting, follow the course of the sinuses, and open them up well. (Sometimes a seaton does very well.) It is sqmetimes necessary to divide the ligamentum nuchae, and when you do a great gaping wound is the result, and there may be new tissue formed, and you may have to cut out some of this. After using the knife, use caustics. I generally use corrosive sublimate — five to ten grains to one ounce of water. Saturate some cotton or tow and put this in the place. Devise some means to allow water to run upon it for an hoar or two each day, and feed from a high trough, and feed pretty well, which will benefit the healing process. Use tonics, diuretics, etc., especially if the limbs swell. You may have to remove part of the bone. There may remain a stiff neck, but it does not interfere with the animal much. Injuries from being halter-cast. There may be very alarming symptoms. Perhaps, after the animal is released, he cannot raise the head, and if allowed to remain in this position there may be con- gestion, the result of the irritation, or mechanical congestion, giving rise to alarming symptoms The muscles or the transverse processes may be injured, and produce wry neck ; the nose may be almost to the ground, the lips and nose swollen to a great extent. Treatment. — You will be apt to look upon such an injury as being a DISEASES 01* DOMESTIC ANIMALS. 107 very serious affair, but if the spine or large nerves are not affected you may expect recovery. If he is unable to raise the head, the lips and nose swollen, and interfering with respiration, scarify the lips and sides of the nose ; apply fomentations to relieve congestion, and endeavour to support the head, which may be done by means of a bag put under the head, which is better than to tie up with a halter, which interferes with the passage of the blood and increases the swelling. Give a slight laxative, and persuasive, and you may be successful. If it is very diffi- cult to raise the h^ad, he lies or falls down, then elevate the head by a bag of straw, and keep up the same treatment. Give purgatives and diuretics, and, after bathing the parts, use a mild stimulating linament — the camphorated — or you may make it anodyne by adding opium. If the spine is injured, it is more difficult, and is likely to terminate fatally. Endeavour to straighten the neck and stimulate the parts. When he carries the head to one side, and falls down when you endeavour to straighten it, the nerves are generally affected. Phlebitis. — Inflammation of a vein. It is sometimes found, after blood-letting, and it is oftener seen in the jugular vein than in any other, as it is the one from which blood is generally drawn ; but it may occur from other causes. There is diffuse phlebitis. It may occur from con- stitutional causes, but I will refer to that which comes from blood- letting. Causes. — It may be due to the manner in which the operation was performed, as in a case where there is difficulty in striking the vein, or as bleeding in laminitis, even if performed correctly ; so the operator cannot be blamed in all cases. It may result from the way the wound was treated, or from the horse irritating the part ; so it is sometimes best to tie him up for some time. It usually appears in from three to six days after the operation. Pathology. — In the first place there is congestion, followed by in- flammation of the little vessels (vase vasorum) that supply the coats of the vein with the blood. Another cause is coagulation of the blood in the vein above the part where the operation was performed, and it extends towards the head, and not toward the heart. It may extend until the circulation is arrested. Obliteration of the vein is frequent. Symptoms are plain. I think it is ushered in by rigours or shivering — though this is often overlooked — then swelling takes place around the wound : matter is formed, the swelling extends toward the head, the vein is hard and corded ; the formation of an abcess is the result, which is, no doubt, due to the irritation in the vein, aggravated by the manner in which the animal uses the head and neck. There is generally no diffi- culty in diagnosing, as it runs to some extent before you are called. Treatment may be varied according to the inflammatory action. If noticed in the early stage, Ijieep the head well tied up, and keep up fomentations for sofiie four or five hours at a time ; and it may be ad- visable to give a moderate laxative, diuretics, etc. ; but I do not think arterial sedatives are of much use. If the veins have been hard and corded for some eight or ten days, I would recommend fomentations and then blister right over the region of the vein and towards the head ; use mercury or cantharides. In most cases it terminates in obliteration of the vein. When the vein of the opposite side and the small veins en- large to a certain extent, and perform the function of the one destroyed, if abcesses are formed, open and allow the matter to escape, then bathe and poultice ; use any stringent lotions and then blister, but do not rub the blister into the abcesses or in the wound ; feed from a high surface. It is perhaps a good practice to tie him up during the day, and allow 108 CAUSES, SYMPTOMS AND TREATMENT OF him to lie down at night, or even keep him up for two or three days, and keep the head up until the other veins accommodate themselves to carry the blood. He should not be turned on pasture for some time ; swelling of the head is apt to result, due to mechanical congestion, as the blood cannot go back to the heart in a proper manner. Obliteration of a vein is an unsoundness ; so, in examining for soundness, place the finger on and try to raise the vein. If it is obliterated, it will not raise. Thrombus is sometimes mistaken for inflammation of the vein. It is owing to the manner in which the pinning was done. It is swelling and irritation between the skin and areolar tissue. It is trivial in com- parison to phlebitis. You can easily distinguish these. If it extends and is painful to the touch, it is suspicious. A thrombus is moveable and circumscribed. Treatment. — Eemove the pin and carefully squeeze out the matter, and apply liniments, followed by mild lotions, and keep the head up, and you may apply a poultice— linseed meal, boiled turnips, etc. Stiffness in the Muscles of the neck and back may come from various causes— from influenza in the spring and fall, due to a rheumatic tendency or neuroses. There is lumbago in human practice, and perhaps horses suffer in the same way. He may have great difficulty in raising the head, ^nd will groan with pain if pulled around suddenly. If it occurs after strangles or influenza, it is best treated with heat to the parts, with camphorated and anodyne liniments, or apply heat by wringing a blanket from hot water, and put this on and cover with a dry blanket, and attend to the general condition of the animal; give nutritious food, etc. Give iodide of potassium and colchinni, one drachm each, and, if debilitated, give tonics. Injuries in the Muscles of the Neck, caused by one horse biting another, bruising the muscles to a great extent. The skin may or may not be lacerated. Be very careful in such a case for a day or two. Although it may appear very trivial at first, it may turn out very serious. Even if the skin is not lacerated, the fascia and the muscles are bruised, causing inflammation of the head and neck, followed by suppuration, gangrene and sloughing of the parts. Treatment. — Keep quiet, apply judicious fomentations, just a little more than lukewarm. Stimulate with mild stimulating liniments, and watch closely, especially if there is great pain in the parts, and if likely to terminate in suppuration you may make incisions, which, if done in time, will prevent sloughing in many cases. Make the incisions so the matter can escape when formed. Keep the head tied up. Sometimes sloughing will take place and extend right through the ligamentum nuchse, invol- ving the large muscles on either side. In most of these cases this can be prevented if closely watched for one or two days. If suppuration occurs make the incisions, then poultice. Fistula, or Fistulous Withers. — It is a solution of continuity, to a greater or less extent. Fistula proper is where there are two openings — one external and one internal, opening into an internal cavity. There is no particular difference between fistula and sinuses. If there is but one opening, it is called incomplete ; if two, it is complete. Causes. — An ill-fitting riding saddle is the most frequent — being rode a mile, or even less, it will produce it. Inflammation is set up, followed by suppuration. It burrows down, often getting behind the scapula. Even the bearing of a rein will sometimes produce it. Symptoms. — Swelling, more or less — just the same as in poll-evil. It can scarcely be called fistula until sinuses are formed. If you apply poultices before sinuses are formed you may prevent them from forming. The matter discharged, if the bone is affected, is fetid. DISEASES OP DOMESTIC ANIMALS. 109 Treatment iB just the same as in poll-evil. Use the knife freely. Caustics and blisters will sometimes effect a cure, but they are generally mild cases. But the knife is best, and you must sometimes cut out some of the tissue. If you can give a dependent opening, it is not hard to treat, and if it extends outside of the scapula, it is simple ; but if inside, it is difficult. You may insert a seaton, and you should cleanse it thor- oughly, and a good way in summer is with a hose, or place a large pail above the horse and allow the water to trickle upon the part. Use cor- rosive sublimate, fifteen or twenty grains to an ounce of water, or use carbolic acid. Saddle Galls are best treated by removing the cause. Foment and poultice. Use white lotion, corrosive sublimate, sulphate of copper, etc. This may result in a sit-fast. This is produced by constant action of the saddle, setting up inflammation, and destroying a part of the tissues which stimulates the healthy tissue ; matter is formed, the dead part becomes detached from the living, to some extent, but a small part retains its vitality, and is attached to the healthy tissue in the centre, but turns up at the edges. The best remedy is to use the knife. You might get rid of it by caustics, but the best way is to cut it out, and then you may apply caustics, poultices, lotions, etc. Muscles of the Groin Lacerated.— If the hemorrhage is great, first control it, then cleanse the parts, and then bring the divided edges to- gether, but leave a small opening at the lower edge, to allow the matter to pass off. A punctured wound in this region is very likely to be fol- lowed by severe inflammation. Sometimes a seemingly trivial injury, if not attended to, produces very alarming symptoms, and perhaps death. Such injuries may occur in different ways, as by stepping on the end of a stick, which may fly up and produce it, or coming in violent contact with any such obstacle, or the horn of an ox. You cannot be too careful in your prognosis of such cases. If the wound is inward or downward, endeavour to make it an incised wound. Make an incision in the sound tissue, which looks cruel, but it is the best in many cases, unless there is likely to be great hemorrhage. But if the wound extends upward, then this is unnecessary. Have recourse to constitutional treatment. Give a good dose of purgative medicine, if the animal is in good condition, and give diuretics, or a good dose of hyposulphite of soda. Cold or hot appli- cations, as the season requires, continued for some time, and if used in time may prevent the symptoms of a phlegminous character. It is a good practice to examine such wounds carefully. It may be done with the finger, or you may have to use a probe. Endeavour to find what caused the wound, and you will be able to judge whether fragments remain in the flesh or not. Symptoms. — If phlegminous inflammation takes place, they are quite plain. If you are called to see a horse wounded in this region, which has been suffering for some two days, it is much swollen, the animal refuses food, the limb is swollen, not only in the region of the wound, but both outside and inside, there is increased respiration, the pulse perhaps eighty, ninety or one hundred, and weak, the chances are ten to one that it will terminate fatally, but still keep up treatment. Foment for hours at a time, and endeavour to support by stimulants — beer, whiskey, etc., and hyposulphate of soda is said to be good. Fomentations are applied with a view of bringing on suppuration, for resolution is scarcely possible in such a case ; and if it terminates in suppuration, it is generally diffuse, and of an inchorous character. Sometimes, instead of forming pus, it goes on to gangrene, the swelling continues, the limb below the parts is cold, the pulse quick and weak, etc., and death is the result. However, 110 CAUSES, SYMPTOMS AND TREATMENT OF an animal may receive a very deep and severe wound and recover, and if there is a large opening, and considerable hemorrhage, it generally termi- nates better than if the contrary is the case, and I think, in cases of a large wound and scanty hemorrhage, bleeding may be of benefit. Muscles of the Abdomen.— A punctured wound in this region is very dangerous, as it is likely to penetrate the abdomen and injure the peri- toneum, or perhaps the intestines ; but you may meet with an apparently severe wound, allowing the bowels to protrude, and a good recovery take place if the bowels are not injured. If j'ou are able to get them back nicely, there are pretty good chances of recovery ; but if the bowels are injured and bruised, although you may return them, it is not attended with good re- sults, for inflammation is likely to be set up in the peritoneum and bow- els ; but if the bowels are lacerated, you may recommend the destruction of the animal. I saw a case where ten or twelve feet of the bowels protruded, and was in the snow ; the pulse weak ; the bowels were not injured ; they were put back and the animal recovered. The animal generally lies down soon after such an injury as this, and you must secure him, wash the bowels nicely with tepid water, and then return carefully, and then bring the edges of the wound together — the inside first. You may use silk thread, or what is better, carbolized cat-gut ; then bring the skin together. It is best to keep the end of the sutures out, so you can remove them. Keep quiet and give but little food. A purgative is not necessary, and be careful in giving sedatives. Perinaeal Region. — A severe wound in this region, if the rectum is uninjured, may be treated with success. Hemorrhage is sometimes ex- cessive, which you can usually arrest with a plug pressure, etc., if the artery cannot be tied. Pectoral Region. — The result is apt to be the same as that of the groin. A deep seated wound is apt to be followed by phlegminous inflam- mation. Arrest the hemorrhage. The proper way is to take up the artery or vein ; but this is not easily done (it is not good practice to take up a vein, but it is sometimes necessary, if it is a large one). But you can generally stop with tow saturated with iron or other styptics. In a case where the hemorrhage has been excessive and has been arrested, it is best to leave the plug in forty-eight hours, unless there is great pain. I have taken it out in twenty-four hours, and slight hemorrhage was the result ; the blood coagulates first in tow, and stops the flow. If a severe injury, make a careful examination. If it does not heal for a long time, then there is likely some piece still in ; or, it may heal just to break again in a few days. You may remove this, and after some time another abscess form, showing that some piece still remains. It is sometimes necessary to enlarge the wound, if there is no danger of injuring the vessels. Muscles of the Fore-Extremities.— The belly of the muscles are liable to sprains, as well as the tendons ; but this is not so serious. The fore-extremity is held to the body by muscles, which are liable to injury — those on the outer part more liable than those on the inner. Shoulder-Slip, or Sweeney, is a common occurrence. It is called shoulder-slip in most of our works, because there is bulging or slipping cut of the joint. The muscles affected are the antea and postea spinatus, teres externus, and sometimes the flexor brachii. Pathology of shoulder-slip as a disease, and not as symptomatic of a disease, is injury to the muscles in some way or other — a sprain, com- pression, or a jar, setting up inflammatory action, perhaps not severe, but interfering with nutrition ; the sarcous elements become changed ; the muscles cannot assimilate material for their growth ; they waste or DISEASES OF DOIIESTIC ANIMALS. Ill drivel until a hollow is seen in the scapula ; all the elements of the muscles are there, but are wasted to some extent. Causes are various. It is mostly likely to occur in young animals, from a sudden jerk from a plough striking a stump or stone, or from the wheel of a waggon striking against some obstacle, or it may occur from the animal rolling about the stall or box, or from jumping about ; but in most cases it is the result of work, and the horse going in an awkward manner. Symptoms are very well marked. In the early stage there is, I believe, more or less swelling, but it is not often noticed. The first thing gener- ally noticed is the wasting of the muscles ; or, the animal may be stiff to a certain extent, the action somewhat impaired, yet you could not call it lameness ; but in five or six days the true character of the disease shows itself. If the outer muscles are severely affected, those on the inside of the shoulder are affected to some extent, and when the animal throws weight upon the limb, the joint bulges until you would think there was a partial dislocation of the shoulder. In the very worst cases a cure may be effected ; but if kept at work, it may be a long time before the muscles will attain their natural size. Keep the patient quiet for two, three op four weeks ; turn loose in a box or stall ; it is better than turning on pas- ture. First use fomentations and follow by mild stimulating liniments, as tincture of camphor, opium and arnica — equal parts. The treatment should be such as would hasten the reproduction of the muscular fibre, by keeping the animal quiet, feed moderately well, stimulate the parts and apply a blister occasionally ; or you may use seatons, and if you do, use three ; but there is no necessity for using very severe remedies. There is no particular specific for it. Judicious exercise for some time is benefi- cial. He may be used for light saddle work, but not to the plough. In- cisions are sometimes made and air blown into the areolar tissues. Those who practice it say it separates the skin from the muscles, and hastens reproduction. This can easily be detected by the crackling noise. In giving your opinion, you may give it that a cure can be effected, but it will take some time, and plenty of time. Enlargements on the Shoulder are common in farm horses, a common cause being an ill-fitting collar. They vary very much in their character, and it is necessary to make a careful examination and find the true character of the enlargement. When they are soft and moveable or fluctuating, and have made their appearance suddenly, they contain serum, and are called serous abscesses, and are very common in the shoulder by the muscles being injured ; inflammation and irritation are set up, and an exudation of serum is the result. Some are well defined, others are not. In some cases they may be hard around their circumfer- ence and soft in the centre, and the hair begins to fall off. This shows suppuration, and it may be a deep-seated abscess, and if there is large exudation surrounding this pus, which may have been there for some time, then blisters, etc., would not reach it. Treatment.— li a serous abscess make an incision and allow the serum to escape. After treatment use fomentations or cold appli- cations according to the season of the year, and use pressure— place a bag of bran over the part and apply pressure. These are trouble- some to treat ; in some cases you open it up and the contents are evacuated ; and in twenty-four or thirty hours serum is again formed ; then use a digestive ointment on a piece of tape, or something of the kind, saturated with a mild stimulant. The best knife for such is Sime's abscess lancet. There is another mode which looks rather rough, but is pretty successful : if you have opened it up and used the digestive 112 CAUSES, SVMPTOatS ANt> tRfiAtMENT OF ointment and matter continues, it is good practice to cut it right open with the knife, and then treat as a wound, or you may insert a seaton through it and attend to the constitutional treatment. If in good con- dition give a dose of purgative medicine, if in poor condition a generous diet. If you have some difficulty in determining whether pus exists or not, get the history of the case. Notice whether the hair is falling off or not, and you may feel the fluctuating of the pus ; or you may use an exploring needle, or make an incision and insert a seaton needle, and if pus is there, then enlarge the opening, foment, poultice, etc. They sometimes take on an indolent character, and if it does not assume the character of a fibrous tumour use stimulants, blisters, seatons, etc. If you find this upon the anterio-internal part of the joint in a horse three or four years old, that has not been doing much work, is unthrifty, the appetite impaired, constitutional irritation, pulse quick, some difficulty in extending the limb, etc., it is generally the result of irregular strangles. The local treatment is the same, but the constitutional treatment is dif- ferent ; do not give a purgative if it comes from strangles. You may find tumours of a vascular or malignant character, which are more diffi- cult to remove, but the only chance sometimes is to remove them, but there is apt to be considerable hemorrhage. The ecraseur is the best instrument for such cases, and it may take a pretty powerful instrument ; there is no great damage generally in dissecting these out. The top of the neck is sometimes injured from the action of the collar ; it is easily treated if the exciting cause is removed. Clip off the hair, use tepid water and mild astringents. But sometimes they become very trouble- some, a small abscess forms and bursts, heals, forms again, etc., and there is a great tendency for the matter to extend downwards. If you examine you will notice a hole extending down the side of the liga- mentum nuchae, which you must cut out ; caustic may do, but it is tedious. After cutting, bathe, poultice, etc. It is good practice to tie the head up for some time — keep it well elevated. Shoulder Joint. — The bones of this joint are held together by muscles, and not ligaments — the only ligament being the capsular. Injuries to this joint are very rare in the horse. Dislocation of this has been noticed but very rarely, indeed, but the joint may be diseased in various ways. Inflammation may set up affecting the joint and cartil- ages, and, if allowed to run on, anchylosis may take place. It may be due to a sprain or constitutional disturbance — a kind of rheumatic inflammation. This may come in the bicipital groove. I think the principal seat of shoulder- joint lameness is in connection with the flexor brachii muscle, which passes over the bicipital groove, in connection with stratiform and articular cartilage. It is generally suddenly produced, and readily gives way to treatment, but you may have all the changes found in other joints —inflammation of the synovial membrane, cartilages, etc., — giving rise to porcelaneous deposits. Animals were at one time blistered for shoulder lameness, where they were confirmed cripples from navicular disease. It is not very difficult to tell shoulder lameness from foot lameness, by one familar with the parts. It must be distinguished by the action, from certain parts being affected. Shoulder lameness may be produced by the animal running away, falling violently, or rough handling in breaking in. Cavalry and artillery horses are subject to it, or it may be caused by the horse being cast in the stall, or going through deep snow, or by direct injury from a stroke upon the parts. There is some difficulty in locating it, if slight, but not if severe. Symptoms. — There is difficulty in extending the limb, but not what you would call great difficulty. It is brought forward in a kind of rotary DISEASES OF DOMESTIC ANIMALS. 113 manner. This is better marked in trotting than in walking, but if he is warmed up it will disappear to some extent. The limb is flexed when standing, but not pointed, as in foot lameness — perhaps parallel with or just behind the other foot. You may, in some cases, be able to detect swelling, especially in the flexor brachii, and manipulation may assist you. If you extend the limb the horse will rear up, or if you pull it back, and then trot off, the lameness will be increased. Negative symp- toms are useful. Look at the other parts of the limb. The best time to examine is after a hard ride or drive of four or five miles, and then stand in the stable until cooled and bring out and examine. There is a tend- ency to strike the toe in turning, and you are liable to think he is lame in the shoulder, when he is not. Treatment. — It makes little difference, so far as treatment is concerned, whether it is in the flexor brachii or in the articulation ; but it helps you in your prognosis if you know which it is. In one it is curable ; in the other it is not. Give rest; stand in a box. Some recommend a high- heeled shoe in severe cases ; I usually prefer taking the shoe off. If severe, and the limb can scarcely be moved, if there is great difficulty in getting up when down, it is good practice to place in slings ; foment, use anodyne liniment, or a newly flayed sheep skin, etc., followed by a blister, and invest a considerable surface. Apply around the articulation, and allow it to extend down the limb. Cantharides is as good as anything. Seatons are sometimes useful. Put in about three. Do not turn on pasture, but give rest and quiet. Another way of detecting lameness is putting a piece of wood for the animal to step over. If anchylosis takes place, it is best to destroy the animal, unless it is a brood mare or stallion. Collar-trails are easily recognized, and if treated in time are easily got rid of. Eemove the cause ; bathe with warm or cold water ; use the white lotion, etc. ; irritating dressing should not be used. Sometimes the result is a sit-fast, which you must dissect out, then stimulate gently. A great deal may be done to prevent collar galls, by having the collar fitted nicely, and exposing it to the sun or fire, to dry up the sweat. There are swellings between the forelegs, which may be produced in vari- ous ways, and may be of a formidable character, the result of irritation from niartingal or breast strap, or injury direct or indirect, or they may be of a constitutional character. In hydrothorax, disease of the kidneys, liver, etc., you will find these swellings. If they are from injury, remove the cause ; apply hot or cold ; if matter is present, open it up ; or, there may be extensive irritation inside the legs, which, in some cases, is diffi- cult to treat. It is best treated by constitutional treatment. It may result from the horse being slightly out of condition. Give purgatives, tonics, diuretics, etc., and use the white lotion. I have found benefit from dusting the parts with charcoal. Keep quiet, for the folds of the skin rub upon each other and keep up the irritation, especially in the fall of the year. Pectoral Rearion. — Injuries here occur in different ways, and some- times do exceedingly well if the sternum and large vessels are uninjured ; a punctured wound being the most dangerous. Endeavour to find what caused the trouble, and it will assist you in determining whether there are any pieces in the wound or not. Elbow Joint. — Is formed by the radius and ulna and humerus, and there is considerable motion in it. It is occasionally diseased ; sometimes there is an abscess of a serious character, or fracture of the ulna, exostosis, anchylosis, etc. ; or, there may be inflammation of the joint or synovical membrane. It may result from the animal slipping and 114 CAUSES, SYMPTOMS AND TREATMENT OF falling upon the elbov, or from constitutional causes, and is an annoying source of lameness. It is hard to find the exact seat of the disease. In other causes there is sprain of the ligaments, or some of the lateral liga- ments may become completely ruptured. The caput muscles, especially the magnum, tend to bring up the leg, and are liable to injury. The symptoms vary according to the activity of the case, and is sometimes diflficult to detect. We make up our mind from both negative and positive symptoms— by negative, when there is no disease in any other part of the limb. If there is rupture of the lateral ligaments, or frac- ture, the animal points the limb and knuckles at the fetlock. The elbow comes down to a certain extent, if walked. Sometimes, by placing the limb pretty straight, he can bear weight upon it pretty well. If it is the result of a sprain, there is more or less swelling and heat ; but sometimes you do not have these symptoms. Some say there is a tendency to place the foot as in laminitis, but I have hot seen this ; but in backing there is difficulty in bringing back the limb. Wasting of the muscles in the region of the joint will assist you in determining it. Treatment. — Give rest ; allay the irritation ; use hot or cold to the parts ; blister — seatons are perhaps preferable to a blister, one inside and one outside — and stimulate them with cantharides, or anything of that kind. If it is a severe injury to the caput muscles, then place in slings. Capped Elbow. — The most common injury in this region is a little enlargement appearing on the point of the elbow, caused by the action of the shoe when the animal lies down, causing irritation and the formation of serum or an abscess. A heavy belly band may produce it, or it may be due to the manner in which the animal lies down, even producing it without shoes, and it is necessary to wear a boot on such, although shod with very short shoes. It is easily detected ; there is first irritation, and then a slight exudation ; sometimes just an ordinary exudation, and sometimes it is of a serious character. Eemove the cause — remove the shoe — apply fomentations and stimulate with any mild liniment, such as the camphorated, and in from three to six days it will disappear, if attended to in time. A moderate dose of physic is of benefit. If the cause is kept up and serum accumulates, it is best to open it carefully at the most dependent part, then foment and stimulate ; or insert a small piece of tape with the digestive ointment, carbolic acid, etc., to prevent the wound from healing, or you may insert a seaton through it for the same purpose. This exudation may become of a fibrous character, and also fibrous pus is secreted, and it makes an ugly sore. The remedy is to dissect it carefully out In some cases, where the exudation is becoming organized, you might arrest it by using iodine ointment, or biniodide of mercury, but if once organized then remove it. There may be consider- able hemorrhage in cutting these out, but it can generally be controlled, after which bring the divided edges together. It will take some time for it to heal up, owing to the motion in the parts. When you think an in- flammatory action can be set up and cause the absoption of this exuda- tion, try counter irritation. The elbow may be injured by slipping and cutting the point of the elbow, especially in winter. In such cases when the animal stands up you will see that the cut or incision is below the elbow ; these set up great irritation. Treat with cold or hot water, lotions, etc. If the animal is driven for some distance air passes and extends right round the joint, and perhaps up the shoulder, giving rise to great swelling, which is not the result of inflammation ; bring the hand over the part and you will find that it contains air— there will be a crack- ling noise. Foment and use slight pressure. It might be advisable to make incisions in the parts, but this is the exception. I saw this occur • DISEASES OF D03IESTIC ANIMALS. 115 from tracheotomy, where the air got in and extended over the entire body ; the operation was performed in a bungling manner. Injuries Below the Fetlock. — The flexor muscles are bound down by fascae. These muscles are liable to injuries, punctures, wounds, etc., and when you notice an injury of a chronic character, and successive abscesses form and discharge, open up and examine for a foreign body. These mus- cles are also sprained. The belly is not sprained so often as the tendon ; but this does occur. It may be done by violent action, as galloping, jump- ing, etc. The symptoms are well marked. There is difficulty in flexing and extending the limb, heat and swelling in the parts. Use fomenta- tions, liniments and a mild blister. There are incised, punctured and lacerated wounds as well. If a horse receives a pretty deep puncture in the region of the elbow joint, with a small external opening, and the animal is kept going for a day or two, matter forms, diffuse suppuration takes place under the fascia. It can not get away, but extends around the limb, causing great suffering and swelling. The matter may penetrate and destroy the capsular ligament, and cause open joint, and if you are called two or three days after the acci- dent, and the parts swollen and tender, and perhaps you can detect fluctuation, then relieve the parts of pus by an incision, foment, etc., which will often prevent excessive sloughing. Watch such cases closely. The muscles become tendons as we proceed down. The exten- sor metacarpi obliques passes obliquely over the anterior portion of the region, and nature has supplied it with a bursa to enable it to move smoothly. And you often see little swellings just above the knee, which are distensions of this bursa, which has become diseased, possibly from a sprain, but generally from injury by striking the manger, or from jump- ing fences and striking the parts, or from a pole upon the neck to pre- vent jumping. Give rest, use hot or cold water, judicious blister, etc. It is an eye-sore only, and is very difficult to remove. Endeavour to cause absorption by setting up inflammation, then use cold water to the parts. You may sometimes open them, but, as a general thing, be care- ful unless it contains serum. You may treat with the asperator, but it is not what it is said to be in veterinary practice. Knee- Joint. — The arrangement of the bones prevent concussion, to a great extent ; still it is affected by concussion, and s6metimes of a com- plicated character. Inflammation generally results from injury, but not invariably. It may be from hereditary tendency, or a rheumatic inflam- mation. There is lameness and swelling in some cases. He may walk tolerably well, but, if trotted, he drops the same as in splint, to some extent — stands with the limb slightly pointed. If you flex or rotate the limb it gives pain. If the cause is kept up, it is likely to end in anchy- losis, which may be due to a bony deposit, or to a fibrous exudate, and the animal may be destroyed. The prognosis is more difficult than the diagnosis. Injuries to the Knee Joint. — There may be stiffness, but not lame- ness, from the formation of fibrous tissue, or there may be a little deposit in connection with the ligaments, giving rise to more or less lameness ; or anchylosis may result from carpitis. You can detect this by flexing the limb, and if the limb is in a healthy condition, you can bring the little pad, at the back of the fetlock, against the elbow ; but if diseased, you cannot. Examine in this way for soundness. Treatment. — There is no articulation that requires more rest than the knee. Devise some means to keep the limb quiet. Take off the shoe in most cases ; bathe with cold water, and use anodyne liniments, and bandage nicely ; and I have found benefit from a starch bandage. If 116 CAUSES, SYMPTOMS AND TREATMENT OF • there is but little irritation, and if the animal is extremely lame, use slings. Use counter-irritation, and apply around the whole articulation, but do not rub it in too hard at the back part, for it would destroy the skin and produce a sore that is difficult to heal. We sometimes apply a blister to set up inflammation ; sometimes to hasten, and sometimes to arrest, same process. Seatons and firing are recommended, but I think blisters are best. Speedy-Cut is sometimes a very troublesome enlargement, and may appear inside of the joint. It is produced by striking ; it may come gra- dually, and be full, hard and tense, or come suddenly and be soft. In some cases it is just contusion, just from one strike, which bruises the tissues internally ; possibly there is extravasation of blood, and serum forms ; or, from striking slightly, irritation is set up to a slight extent ; this goes on, and a tumour comes on gradually. Treatment. — If the cause is kept up, it is likely to end in a serious abscess. Kemove the cause. Use hot or cold applications ; if there is much pain hot is preferable. But I think if cold is applied in time, when there is not much pain, it prevents the bad results. There is benefit in bandaging. Use acetate of lead and mild stimulating lini- ments. If serum forms, open carefully after allaying ihe irritation (Sime's abscess lancet is perhaps the best), then apply pressure; for if you do not, it is likely to collect again. But do not be rash in opening while there is irritation. The irritation can be reduced to a great extent by cantharides or biniodide of mercury. There are various methods of preventing striking ; attend to the shoeing, and in many cases it is necessary to apply boots, sometimes from the foot to the shoulder. The Tendons of the Knee are sometimes cut, especially the meta- carpi magnum, from falling or from a kick, or coming in contact with some sharp instrument. The tendons will re-unite, but in injuries here it is sometimes difficult to get reunion. In laceration of these tendons, bring the divided edges of the skin together, keep the limb as straight as possible— by splints, in some cases, and keep the parts quiet If you are not called for some time after the accident, the horse has been moving around, the ends of the tendons recede from each other, and there is a kind of fungus growth thrown out inside of the wound ; when the ani- mal moves, this either protrudes or disappears, which shows it is in con- nection with the tendons. Cut the diseased portion out ; apply caustics and considerable pressure. Good caustics are sulphate of copper, nitrate of silver, carbplic acid, etc. Perfect reunion will not take place, but a growth is thrown out by which the two ends are united, and there will always be an enlargement. Open Joint is a very serious result in any articulation, and some- times there are severe constitutional symptoms set up, and it may cause death by the constitutional fever. The joints most exposed are most liable — the stifle, hock, fetlock and knee — but almost any joint may be laid open. What I mean by open joint is where the skin, ligaments and synovial membrane are opened up. It is one of the most serious injuries to which the horse is liable, and varies much in its results. A series of pathological changes takes place unless the discharge of synovia is arrested very soon. I think if it occurs in a horse of a phlegmatic tem- perament, it is more easily treated than in one of the opposite condition ; the constitutional fever does not run so high. Notice the character of the discharge. It is not so serious if opened with a sharp instrument, as if done in a more violent manner, for if done by a kick, or from falling, there is inflammation as well as open joint. It is sometimes a punctured wound produced by a pitch fork. In a case where a capsular DISEASES OP DOMESTIC ANIMAL*. 117 ligament is punctured or injured, and not done in a violent manner, there is not very severe suffering for some timie, but the synovia escapes and the air gets into the wound, sets up irritation, and then the animal suffers greatly. At first the discharge is pure synovia — if injured in a mild manner— but a change soon takes place ; in one or two days there is active inflammation, and the nature of the disease alters, there is more or less pus, and in three or four days the integrity of the joint is somewhat destroyed, the cartilages become destroyed, and in a severe case partial or complete anchylosis is the result, and necrosis of the joint may occur. The tissues also become implicated, and tumefac- tion in many cases comes and extends around the joint, and the pus is sometimes mixed with red streaks, giving it a kind of muddy appearance, showing that the cartilage is destroyed. The pus is fetid also, the bones become carious or ulcerated, matter is thrown out, and anchylosis is the result. Sometimes the appetite is gone, the pulse quick, there is intense fever, sweats bedew the body, there is great emaciation, and death may result in from two to six days ; or the surrounding tissues become infiltrated with pus, and extensive sloughing follows, or there are sinuses formed, etc., and the case is hopeless. This occurs especially in the hock joint, but if you are called in the early stage, while the discharge is pure synovia, no great fever, the wound made with a sharp instrument, and the tissues not lacerated, it stands pretty good chances of recovery. Treatment. — Endeavour to promote the healing of the wound, and if of any size, insert a suture. Some bind with collodium, which excludes the air, keeps the wound together and prevents the discharge ; or, take a small piece of cotton and saturate with one part of carbolic acid to eight, nine or ten of lard ; apply it over the wound, and keep it there by means of a bandage. Bandage, foment, and attend to the constitutional treat- ment. Keep as quiet as possible, and sometimes give a moderate dose of purgative medicine. It may heal by the first intention, or almost heal, then break, and synovia be discharged and prove fatal. Do not attempt to explore a wound of this kind. If it is a later stage, and pus is formed, it would not do to stitch it up and thus prev^ent the escape of it, but keep quiet and place in slings, after the animal has become tired. It is some- times good practice to use splints, if in the knee joint, to keep the limb as straight as possible ; and in fomenting be careful not to wash or wipe away any coagulum that may have formed. Poultice ; and the poultice I recommend is : equal parts of flour and oatmeal — the flour tends to coagulation, and the meal soothes Granulations spring up, and are sometimes not bad signs ; but if they are too profuse, you can use caustics, or the ordinary lotion, but do not use any irritant dressings, nor inject the wound. Some recommend blisters in the early stage, others do not. They are recommended for various reasons — to produce stiffness in the joint, or to arrest the discharge, etc. — and in a case of some standing they may be of benefit If it occurs in the knee or hock joint, to any extent, you may expect anchylosis. If the pulse is full and bounding, you may use arterial sedatives — aconite, in ten drop doses, every four or five hours, for two or three days. Bruises of the Knee. — Although they look very formidable, are very trivial in comparison with open joint, and you may mistake the flow of the bursal fluid for open joint. Cleanse with cold water, bring the edges of the wound together and secure them; keep quiet and subdue the inflammatory action ; use the ordinary white lotion, etc. Sometimes the hair bulbs are injured, and the growth of the hair is white, or even no hair at all is produced, and if the hair bulbs are destroyed, then hair can, not be reproduced ; but so long as they are not destroyed it will grow- 118 CAUSES, SYMPTOMS AND TREATMENT OF but it may be white. Treat with any milk ointment to lubricate the skin, hand-rub, etc. Sprain of the Flexor Tendons, so called, is not, in many cases, a sprain of these tendons, but of the Metacarpal Ligaments.— This is very common in race-horses, and in horses pulling heavy loads, especially if they have high-toed shoes. It is not common in ordinary driving horses. It is produced by violent exer- tion of some kind or other ; the most prolific cause is fast galloping, or in pulling up hill with a heavy load. Symptoms are generally tolerably plain. An exudation takes place between the fibres of the ligament or around the ligament ; there is more or less swelling, ; the horse is lame to a greater or less extent ; after standing, lameness disappears more or less. Although it involves the tendons, it will be found to be anterior to them ; and there is pain upon pressure, and flexing the limb increases the pain, and this may be over- looked if there is much hair upon the legs. If the animal is kept at work, the exudation increases and the animal endeavours to relieve itself by flexing the limb. The exudation becomes organized and the tendon shortens, and the animal walks upon the front of the hoof. This is more likely to take place in a heavy work horse than in a light, as a light horse would be laid off work and a heavy one would not. Sprain of the Back Tendons takes place in the same way, and is also more likely to occur in fast or heavy work horses. It is frequent in race horses. It is usually produced by violent exertion. Horses having a bound-down formation of the limb, as it is called, are more liable to it. An animal long and weak below the knee, or standing unnaturally back — calf-kneed, as it is called — is more likely than spring-kneed. I would rather have a horse knee-sprung than calf-kneed. These sprains may be slight or severe, and may be suddenly produced. There will be more or less exudation around and in between the fibres, snd if the cause is kept up it will become severe. The fibres will give way and give rise to thick- ening of the tendons, and they will contract and cause the horse to walk on the toe. Symptoms. — More or less swelling ; and flexing or extending the limb will increase the pain and cause more lameness when trotted out. Treatment is just the same, whether it is the ligament or the ten- don, and must vary according to th« time you are called. If called immediately, apply cold water and refrigerants, and bandage judi- ciously to prevent the exudation Keep up the applications for one or two hours, and watch the bandage closely, for if swelling takes place, it may interfere with the circulation. After some time apply a blister, but in some cases just cold water and bandaging will do. The animal will be able for any kind of work, but if for fast work, give a long rest. If you are not called until the exudation has taken place, and great pain is present, then use hot applications, bandage and use anodyne liniments; and, after the irritation subsides, blister, and repeat in perhaps two or three weeks. It requires not only weeks, but months, or even a year, to recover so as to undergo severe work. You would better recommend a valuable animal rested for six months or a year, than to put him to work in two or three weeks. You may derive benefit from the firing iron, and it is necessary now and again, but it can generally be treated without it. The result of the injuries I have men- tioned is Contraction of the Tendons, in which the horse walks upon the toe, allowing the foot to grow out of shape. The only chances of bringing the parts into their natural condition is tenotomy, that is if the contrac- DISEASES OF DOMESTIC AMIMALS. 119 tion is the result of disease of the tendon, but if it comes from some dis- ease of the fetlock joint it would be useless. In performing tenotomy apply cold water to tbe parts for a day or two, to reduce any inflammation and get rid of the exudation. Cast the horse, take the limb from the hobble, and make your incision inside of the limb, taking care not to injure the artery. Some recommend introducing a scalpel first down between the tendons and ligaments. The ordinary director does very well, as well perhaps as the scalpel. First make the incision and then use a tenotomy knife— the best is a probe-pointed bistouri, and it is best to cut through both tendons, but sometimes cutting one will do— then treat as a common wound. Sometimes the animal will stand with the limb flexed, and it is in some cases necessary to apply a high-heeled shoe, but in all cases bring the foot as near the natural condition as possible before operating. The Sheath of the Tendon is injured, but it is trivial in comparison with injuries to the fibres of the tendons. It may be done by striking with the hind foot, or if in the hind leg by some other animal striking it. You might at first think it was sprain of the tendon, but if it is well back, there is swelling, and the animal is not so lame as in sprain. It is best treated by hot or cold applications, refrigerant lotions, anodyne liniments, etc., and you may find benefit from a blister ; when you are called make a careful examination. The suspensory ligament is the great mainstay of the limb, and very powerful, and one upon which there is great stress ; sprain of this is common, and sometimes its fibres give way completely, giving rise to what is called Break-down. — This is more serious than sprain of the back tendons or metacarpal ligaments. In a case of this the fetlock descends and may almost touch the ground, even if there is not much weight thrown upon it. It is more common in race or hunting horses, and occurs in trotting horses, but not often. It occurs to a certain extent in very heavy horses, especially if weak limbed. Symptoms vary according to the extent of the injury. It is not gener- ally in a perfectly healthy condition when the fibres give way completely, but, in a majority of cases, there had been a slight sprain of the liga- ments, showing a slight swelling anterior to the tendon, and a little thickening of the tendon. The animal is laid off work and treated, and again put to work, and the same thing occurs, treated the same, etc., and when put to work there is complete breakdown. If there is complete rupture of the two bifurcations, the fetlock descends ; if but one, then one side descends more than the other. Treatment is the same as that already mentioned. Give a long rest, and, unless rested a long time, he will not stand the same amount of hard work as if rested a long time. If it is complete breakdown, the limb will never regain its natural condition, but may be able to undergo a considerable amount of fast work. When there is descent of the fet- lock and severe pain, the animal lies down ; let him lie. Apply fomen- tations and camphor, laudanum and arnica, or perhaps a little chloro- form ; or if you use water, acetate of lead or opium may be added. Ban- dage and bring the parts as near their natural position as possible. A high-heeled shoe is recommended, and may be of benefit. After allaying the acute inflammatory action, although there may still be great pain, apply a blister around the fetlock and right up where the ligaments are affected. In some cases, where there is extensive exudation, possibly involving the bone, bursa, etc , you may find benefit from the use of the firing iron. Such a horse cannot be restored to the natural condition, but there will be a thickening of the parts, and the fetlock will descend 120 CAUSES, SYMPTOMS AND TREATMENT OF more than natural. Sometimes there is only partial rupture of one of the bifurcations. Then allay the irritation, and apply a starch bandage and a high-heeled shoe, and slings are sometimes of benefit in such cases. If the animal will lie down and take good care of the limb, it is better than slings. Inferior Sesanoid Lii^aments are also liable to sprain. This may give rise to a lameness which is puzzling. It is most likely to occur in fast horses — race and trotting horses, the latter oftener suffer here than higher up. Symptoms. — It is difficult to say which of the three ligaments is affected. There is more or less irritation, giving rise to lameness, at first sight, after fast work. After cooling off the horse goes lame for eight or ten steps and it possibly disappears. The leg is bandaged and he is taken out the next morning. There appears to be nothing wrong ; there may be a little pointing of the foot, which shows the irritation is low down ; you may detect slight swelling and heat in this region ; trot- ting him causes pain. Give rest ; hot or cold applications and counter- irritations ; but be careful with it in this region ; it may destroy the skin and hair bulbs. The tendons may be cut — usually from the action of the hind feet, or if in the hind feet, from one horse running upon another. Bring the parts together with a suture, and keep them well bandaged. Keep as quiet as possible, and, if practicable, use slings, and take a piece of iron and fasten on like a shoe, and let it come up the back of the limb and grasp the limb above the joint. Although there is thickening of the tendon, it does not seriously interfere with his action ; or the tendons, ligaments, nerves, etc., may be cut off below the joint, and the hoof will take on a very peculiar growth. If the ten- dons alone are cut, then bandage nicely and watch closely, for the irritation is liable to extend down between the sensitive and insensitive parts of the foot and produce extensive suppuration. When it does it is necessary to cut down and allow the matter to escape. But if these are entirely cut, you might as well recommend the animal destroyed, You might produce reunioun in a partial manner, but the animal is of no use afterward. Sesamoiditis. — Sprain of the back tendons in the region of the fet- lock, accompanied by inflammation of the sesamoids and bursae. It is due to a slight sprain of the part, or to rhuematic inflammation of the joint, but most likely some injury or concussion. It is not common in road horses. Symptoms. — On first coming from the stable the animal is slightly stiff , but this will disappear to some extent after exercising, and will again ap- pear after resting. There will be knuckling slightly, and there is a slight puffiness around the horse. A careful examination reveals heat in the parts. Flexing or extending the limb creates pain, and the animal will go more lame. There are changes that take place, perhaps a cartilagin- ous deposit, which may be converted into bone. In such cases lameness continues for some time, and there is a well-marked enlargement around the joint, at first puffy, then hard. Treatment. — Best, fomentations, heat or cold, followed by a blister. We find other causes of slight sprain, and it is hard to say what is the exact lesion. It is usually produced by hard or fast work upon hard roads, or hard pulling. He may extend the limb pretty well, but if trotted, there is difficulty in distending the limb. There may be anchy- losis of the joint. When you see a horse knuckling in the fetlock, do not make up your mind that the disease is in the fetlock in all cases ; but it is symptomatic of disease of the fetlock. Use hot or cold applications, DISEASES or D05IESTIC ANIMALS. 121 and blisters are of great benefit. Cold water may cause the horse to ap- pear pretty well, but knuckling may still remain. Cantharides is perhaps preferable just for a sprain. Interfering or Striking the fetlock joint while travelling. Shoeing with light shoes will generally relieve it. Get the animal in good condi- tion, etc. Sometimes the striking is not sufficient to bruise the shin to any great extent, but gives rise to contusion, sets up inflammation, the result of which is an extensive exudation, which usually terminates in suppuration ; and the matter is deep seated and not very abundant, but from its situation the animal suffers intensely. Such cases sometimes puzzles the young practitioner to tell what is wrong. This may occur from a sprain, but usually from irritation. The animal, when standing, rests the foot, or may lift it from the ground, acting much the same as in suppuration of the foot. Apply hot cloths and poultices, which will allay the inflammatory action or hasten the process of suppuration. Watch it closely, and if, after poulticing for one or two days, the swelling increases and perhaps fluctuates to a slight extent, then you are sure matter is formed ; and when it arrives at a certain stage open it ; but be careful in inserting the lancet if there is extensive exudation. First twitch the animal and make a small incision ; or sometimes insert a probe or director, and then open slightly. If opened in time, it will often prevent extensive sloughing. Poultice, etc., after opening. If 'sinuses are found and matter is discharging, cleanse nicely, and then use caustics, or butter of antimony, nitrate of silver, etc. ; or, there may be thickening, which may be removed from iodine ointment, or an occasional blister. Do not apply irritants when the horse has a tendency to brush, so to speak. Knuckling. — This sometimes falls under the head of disease, and sometimes you can scarcely call it such, and in examining for soundness you may be puzzled to say whether it is sound or unsound. There may be jerking forw^ard of the fetlock at almost every step, or even when standing still. The joints appear prominent in front. It detracts from the symmetrical appearance of the limb, but may not interfere with the action at all. Post mortem often reveals 'nothing wrong with the joint. It is oftener seen in the hind than the fore limb, hard and fast work being the exciting cause, or working young animals before they are able to un- dergo such exercise. The high feeding of colts which are kept in the stable is a cause, or it is sometimes the result of more or less disease in the fetlock joint, or the formation of the limb, a straight fore limb and pastern, etc., tend to this. Treatment. — If of long standing little can be done for it, but if it ap- pears suddenly in a horse three or fours years old, it may be got rid of. Give rest, apply cold water, and afterwards blister, and if the horse has been in the stable recommend him turned to pasture for a time. Knee Sprung is similar to knuckling, and interferes but little with the animal's usefulness. It is sometimes the result of formation, and sometimes the result of hard or fast work before the animal is fit for such work, or standing in a stall, especially if such stall slants from before backward. Judges of horses prefer a knee-sprung to a calf-kneed horse, as they will stand more work, and a calf kneed horse is more liable to stumble. Some say that knee-spring arises from distension of the ex- tensor tendons ; others say from contraction of the flexors and ligaments. Another cause is feeding young animals highly, as for show purposes, and not giving regular exercise. High-heeled shoes also have a tendency to produce this. If in a young horse fx'om any of these causes, a little treatment and a little rest may restore it. If in a gross animal, give a 6 122 CAUSES, SYMPTOMS AND TREATMENT OF j certain amount of exercise and then physic; then use judicious counter- ; irritation; blister. Keeping a horse lower in front than behind has a i tendency to help it, but perhaps a level floor is the best. If the formation ' is faulty you cannot bring him to a natural condition. Sometimes it is j unsoundness, and sometimes it is not. If it is not from faulty forma- i tion, it is not an unsoundness ; if it is from faulty formation, it is unsoundness. Wind Galls will come into your notice almost every day. They : are puffy tumours, situated at the back part of the fetlock joint. ] They are of various sizes, so called because they were supposed to j contain au-. They consist in an enlargement of the bursae, in con- ', nection with the flexor tendons, where tendons play over each other, or over bones. They are supplied with little sacks, called bursae ; they are lined with synovial membrane, and secrete synovaa. The processes of absorption and secretion are going on. When more is secreted than is absorbed, the result is a wind-gall, which is a bursal enlargement, due to ! the natural secretion, which secretion may be more or less changed if the • cause is kept up, and the bursa may become thickened, or even a bony or : cartilaginous deposit may occur. Yon may find wind-galls in any joint, but they are not called wind-galls unless in the region of the fetlock ; if ; well back, it is in connection with the bursae of the flexor tendons ; but ' if more in front, it is in connection with the joint. A slight wind-gall i is not looked upon as an unsoundness, even in a fast horse. In examin- ] ing, be careful to scrutinize the condition of wind-galls ; if they are soft, \ there is no heat in the parts, etc., and they are in the back part, and : small, it is not unsoundness. In examining, make the animal stand \ upon the limb, if they are more in front, heat, pain, etc., are present, ■ and there is more or less disease of the fetlock joint. They may appear i very suddenly, as after a drive or one day's work. They are due to the ■ excessive demand of the drive ; the absorption is not equal to the ; secretion. I think severe exertion irritates the parts and prevents '. absorption, and the secretion goes on as natural. i Treatment. — If of long standing they cannot be removed ; but if ' treated in the early stage, they may be reduced. If suddenly produced j in a plethoric animal, give a moderate dose of physic, and use hot or ; cold applications — cold perhaps is preferable. Pressure is of great \ benefit. Take a piece of cloth and fold several times, and place upon ': the part, and apply a bandage, keeping it wet ; it causes absorjjtion ; or ; you might use refrigerants, as acetate of lead, etc., and sometimes follow ; with a blister, and put to work gradually. Irritant dressings and firing ! are not necessary. It is bast not to open them unless they contain I serum, for the irritation may extend and cause trouble. You could | drain it off with a small trochar, but it would accumulate again. If you ■ wish success, treat in the fall of the year, and expose to the cold during ' the winter ; but they will, in most cases, return in the spring. "Where they come in front, they are a great eye-sore, but are the same, and may ] be treated the same. These may be produced by striking the stall. Dislocation of the Fetlock. — I will first mention this in the fore ex- : tremity. You may be able to reduce it in exceptional cases, but if it j occurs in a violent manner, the bones thrown back, the ligaments ruptured, etc., it is worse than a fracture. Hip Joint. — You may meet with inflammation from some injury, direct ] or indirect, but generally from indirect injury. It may come from rheuma- i inflammation of the joint ; the round ligament may be sprained or ! ruptured. It usually occurs from slipping— just setting the foot upon a j cobble-stone and slipping, and the horse be lame for life — or it may i DISEASES OF DOMESTIC ANIMALS. 123 result from violent pulling. If the round ligament suffers, there is more or less inflammation set up in the entire articulation. The nutrition of the cartilages may be arrested, and ulceration and anchylosis result. Hip joint disease is not so common as disease of some other articu- lations, yet it is a favorite seat by some who are not acquainted with the structure of the parts, and you may experience some difficulty in detect- ing the difference between hip and hock joint lameness. Symptoms. — If the injury is severe, there is difficulty in extending the limb in walking, and this is better marked in trotting. When walk- ing, he will perhaps flex the hock pretty well. He rests the limb when standing, or it may be lifted up from the ground ; but this alone is not conclusive evidence. If there is no- irritation in any other part of the limb, it will assist you in making up your mind. And perhaps he stands on the toe ; there may or may not be slight swelling, but after some time you have wasting of the muscles, even if they are not themselves affected, as in spavin, etc. In some cases you are assisted by manipu- lation ; but you can not always rely upon pressure. It is recommended to take a piece of wood and place it over the joint, and strike it with a mallet once or twice, and then walk the animal out, and he will go more lame if this is the seat of the disease. But after certain charges take place, there is no difficulty in detecting it. Grluteal Muscles, especially the maxmus, which is attached to the prominence on the head of the femur, frequently suffer from injury. This is more common, perhaps, than hip joint disease. It generally occurs just from slipping, more particularly if pulling a heavy load. It is more common in pulling than in ordinary driving horses, and it may be produced in any by slipping or falling violently. If the irritation is kept up, there will be changes in the joint. There may be cartilaginous or osseous deposits. Symptoms. — There is difl&culty in extending the limb — sometimes very great. He can scarcely bring the limb forward at all. There is more or less swelling, if it is in the muscle ; but if in that part in connection with the bone, it will not be so extensive. Looking from behind is the best way to detect the swelling. If you pull the limb back, out, or for- ward, it increases the lameness. You may, in some cases, mistake frac- ture for sprain, and spavin for fracture ; but in fracture there will be descent of the haunch. But the lameness might lead you to suspect fracture. The manner in which the accident occurred also assists you in diagnosing. After a time, when the swelling disappears, atrophy takes place to some extent. Treatment is just the general treatment of sprains. Give rest, foment, use anodyne and camphorated liniments, or you might apply a blanket rung out in hot water and cover it with a dry one, or a newly flayed sheepskin, and follow by a blister ; blister a large surface, extending around the trochanter major and the articulation — cantharides is as good as anything. Some like the application of a plaster to keep the joint Btill ; slings are sometimes necessary. If caries takes place it is incurable. Keep quiet ; if the animal is kept at work there are changes that give rise to a deposit, or a converting of a part of the tendon into cartilage or bone. I think there is no use in firing ; some recommend cutting through these large muscles and applying the firing iron near the articulation, but 1 think it would not be attended with success Dislocation of this joint seldom occurs in the horse — it is scarcely possible without fracture of the acetabulum —in other animals it does not occur ; in dogs and cattle it ia frequent. Cattle do not have the pubeo-femoral ligament: throwing them is more liable to dislocation. In dislocation the limb is shorter; 124 CAUSES, SYMPTOMS AND TREATMENT OF the prominence is either higher or lower than natural ; it may be possible to get it into position in cattle. Stifle Joint. — There may be sprain of some of the straight ligaments. It generally occurs from slipping, jumping, or from the animal getting fast in the snow, etc., and exerting himself to extricate himself. Svm/>^om5.- -There is difficult}' in extending the limb, both in walking and trotting, but it is more marked in trotting, and in extending the limb he endeavours to keep it in a fixed position, and does not bring it so far forward as natural ; there may be enlargement and heat in the parts ; when standing he flexes the limb to some extent. You must also judge from negative symptoms— look at the hock, fetlock, etc Professor Dick told his students to examine the foot, although the leg was broken. You can not be too careful in examining. Treatment. — If it is just a sprain, and is taken in time, it is easily treated. Give rest, foment and blister, or apply seatons, one inside and one outside, as required. I recommend blisters. Dislocation of the Patella is by no means uncommon, and it is never knocked to the inside— however, there is nothing impossible— but to the outside. It occurs in many ways, and in some very simple ways, just from a false step in travelling, or even while standing in a stall where there is an abrupt offset in the floor, from stepping off it, or there are things which predispose to it. I have noticed some cases after strangles, which occurred vei-y easily. Symptoms are very plain, and after seeing one case you can easily recognize the next. The animal cannot extend the limb, and when he does bring it forward, he does it as though there was no articulation in the limb, and acts the same way when backed. There was a student sent from the college to examine such a case, and there was considerable straw in the box, and he said the horse had got his foot fast in a hole in the floor. The symptoms are much like this, as though the foot was nailed to the floor. Treatment. — Get it into position as soon as possible, and the best way to do this is to place a soft rope around the foot, and have an assistant pull the leg forward while you take hold of and manipulate the parts. It will generally go in quite easily, and it is possible to do it just by taking the leg in one hand and the parts in the other ; but the animal may fall and injure himself, so it is best to have some help, and keep the animal supported, to prevent this ; then elevate the hind quarter slightly, or ex- tend the limb, and keep it so, by having it kept there, or tie to a collar. But I find a better way, and I recommend it : it is a little gentle exercise upon a smooth place ; and in turning, it is perhaps best to turn to the side from the injured limb If the muscles have lost their power of con- traction, a little exercise brings them in tone. Invariably advise this, after perhaps bathing with a little cold water and rubbing well. But you may meet with a case where the muscles are relaxed, until it is necessary to stimulate with some stimulating liniment, or even a blister. Partial Dislocation is where it just slips slightly, impairing the action to some extent ; and I think this usually occurs in very young animals, and is due to weakness or certain inciting causes, as allowing weakly colts to run on a rough hill-side. This is likely to become habitual. Changes take place in the cartilages, and perhaps a por- celaneous deposit occurs. It usually occurs in colts up to fifteen months old, and may affect one or both limbs. There is slight difficulty in extending the limb, and there is a peculiar clinking sound at every step, which you can hear for some distance, and a peculiar stilty action. Treatment. — Feed well ; stimulate the joint, and after giving a certain DISEASES OF DOMESTIC ANIMALS. 125 amount of exercise, blister ; keep it in a nice level box. You will find the result is detention of the bursae, which, although it does not seem lame, is a great eye-sore. Sometimes there is a tendency to go upon the toe. When heels grow very long, and it is necessary to bring the foot into position and apply a stifle shoe, apply it to the affected limb, and not, as originally applied, to the sound limb, to cause the weight to be thrown upon the affected limb. There is a little projecting piece to the toe of ^such a shoe. Semi-lunar Cartilages Become Injured.— This is very troublesome, and generally gives rise to permanent lameness. The lameness is similar to other diseases of the joint— difficulty in bringing the leg forward; wasting of the muscles ; some swelling appears, at first soft, but gets harder and harder, and a sort of cartilaginous deposit is the result. It is generally hopeless, bat you might try counter irritation. Vastus Muscles are also sprained, and in just about the same way as sprain in the stfle joint ; there is great difficulty in extending the limb, as great almost as in disease of the patella. These symptoms disappear, and then wasting takes place ; the animal drops to a certain extent. It is easily detected by one acquainted with the parts. Treatment. — Use counter irritation. I have seen pretty good recovery take place, but sometimes this muscle wastes from azoturia. From this wasting a hollow sometimes extends from the upper to the lower part of the femur, and if there is no disease of the bone or at the attachment of the muscles to the bone, a tolerably good cure may be effected. Psoa) Muscles are injured and it is difficult to diagnose. Azoturia is sometimes mistaken for a sprain of these muscles (and I believe they are generally implicated in azoturia.) There may be constitutional disturb- ance, and if you can not detect otherwise, you may examine per rectum, and you may detect enlargement. Give rest, apply heat over the loins, etc. Muscles Between the Stifle and Hock. — The flexor metatarsi, if sprained, gives rise to very peculiar symptoms. The injury may be to the belly, the origin, or insertion, but in most cases it is the belly. It may occur in various ways — from running, jumping, etc. Symptoms. — If in the belly of the muscle, more or less inflammation is the result ; it loses the power of contraction, and, it being an im- portant muscle, the muscles of the opposite side contract forcibly, and in attempting to move the limb, causes it to hang in a dangling manner, and a person not acquainted with the structure would say that the leg was broken. If the leg is straightened it can bear some weight. You can see a cut of this in Prof. Williams' work. Just think of the action of the muscles, and you will have but little diffi- culty in diagnosing this. It looks very serious to a person not acquainted with the anatomy of the parts, but if the insertion or origin is not injured there are good prospects of recovery, if properly treated. Treatment. — Crive rest, keep in a box stall, and allow him to move the limb to some extent. It is not necessary to use slings ; use fomen- tations and stimulating liniments, and perhaps a mild blister, and, after the limb is getting better, give gentle exercise, if the animal will take it. If the animal is gross, give a dose of physic. If the muscle is injured at its origin or insertion, there will be swelling in the parts, but the symptoms are the same. Injuries to the other muscles in this region of the extremity will give rise to symptoms somewhat similar — dangling of the limb, etc. Hock Joint. — Diseases of this joint are numerous. A majority of 126 CAUSES, SYMPTOMS AND TREATMENT OP cases of lameness in the hind extremity are in the hock. It is oftener affected than any other articulation. Bog^ Spavin ia a soft, puffy tumour, situated at the anterior-inter- nal part of the true hock joint, and is due to the distention of the capsular ligament with synovia. It bulges out where it is not bound down by tendons. It is called bog spavin because it is a soft, while bone spavin is a hard, condition of the hock. It is very common and serious, and attacks heavy horses niost frequently, and in such is not so serious. It is comparatively rare in road horses. It is more serious than wind galls, from its affecting the true hock joint. It is the result of an extra secretion of synovia. Naturally there are about two or three drachms of synovia in this sack, but in bog spavin it may be two or three ounces. As well as distention, there may be more or less irritation. The capsular ligament in some cases becomes thickened, and if of long standing, or if the cause is kept up, the cartilages be- come affected — perhaps destroyed — and a porcelaneous deposit is the result. But in many cases it will remain in just the same distended condition for some length of time, and then these changes take place, and perhaps caries, anchylosis, etc. Causes are predisposing and exciting. Horses having round, fleshy limbs, etc., are predisposed. Want of regular exercise, feeding colts for show purposes, fast work, sprain of the articulation, etc., are excit- ing causes. It may, like wind-galls, appear very quickly. Symptoms are very plain. A puffy tumour, as described, involving the capsular ligament ; but there may be a puffy tumour, and not be a bog spavin, but just a bursal enlargement. If there is much irrita- tion, there will be heat and pain, and perhaps lameness, which will continue as long as the irritation exists. It is even more troublesome to treat than bone spavin. Treatment. — If in a young horse, and there is no lameness, and you are informed it has been suddenly produced, if in an animal in good condition, reduce the condition by limiting the food ; apply hot or cold bandage judiciously ; and you may find benefit from a combined bog spavin and thoroughpin truss, but it is difficult to get it upon a bog spavin, and it is a little difficult to bandage the hock; and you must always leave the os-calcis free. Use judicious counter-irritation, and the fall of the year is the best time to treat, for cold has a good effect. If those changes are going on which are the result of inflammation, then blister. Puncturing is not attended with success, for the fluid will soon form again. Thoroughpin is found in most all well marked cases of bog spavin. This is a soft and compressible tumour in connection with the bursae or pedis perforans tendon. It is so called because it runs through from side to side. Pathology. — It consists in distention of the bursa in connection with the flexor pedis perforans tendon, above and in front of the os-calcis. It is generally caused by more or less irritation, causing extra secre- tion of the fluid in the bursa, and may be due to irritation set up through bog spavin ; and in a majority of cases of bog spavin you will find thoroughpin exists, due to the capsular ligament being bulged upward and pressing upon the bursa of said tendon ; but the same cause might produce both. Causes. — It is most frequent in heavy horses. It may attain a con- siderable size, and does not often produce lameness, unless irritation is set up ; a long, straight hock, especially in a heavy horse, predis- poses to it. It is comparatively rare, but is more common in light horses. DISEASES OF DOMESTIC ANIMALS. 127 Treatment is about the same as in wind-galls. Rest the animal to a certain extent ; use hot or cold applications — cold preferable ; counter- irritation, and in some cases puncture, but the more seldom you punc- ture the better ; but if there is serum and pus, then puncture. If you treat such a case, it is better to treat it in the fall of the year ; you may reduce it. I have known it reduced, and it never was noticed afterward. There is no specific for it, but just use those remedies that will tend to cause absorption. You may derive benefit from diuretics. Near the side of the os-calcis there is a groove, through which the tendons of the flexor pedis performs, play and sprain frequently occur, and various names are applied. It is called Spring" Hock, but perhaps a better name is sprain of the tendon. A sprain here, even of a slight character, is apt to be attended with serious results, and is most likely to occur in horses used for fast work, especially if there is a heavy weight upon the back. Symptoms. — There is difiiculty in extending and flexing the limbs ; swelling ; and pressure causes pain ; the heel lifted from the ground ; there may be constitutional fever, and if so, intense pain. It requires a great amount of rest to effect a cure. Hot applications, I think, are preferable to cold. Apply bandages ; a high shoe is good, as it tends to take the strain off the muscle. A good way to apply heat is to take a large sack, and slip it over the foot and up around the part, and stuff it with hot bran. If in a cold stable in cold weather it is prefer- able to poultices, etc., after a time. Repeated blisters, or a seaton in some cases, might be useful. An abscess may be the result — extensive swelling, pain and fluctuation — then open, apply poultices, etc , and after the irritation goes down, blister. This is rather a serious affection. Below the Hock, — Injuries here are about the same as in the fore limb, but the tendons are not so liable to be cut, but they may be cut, and a portion of the tendon be removed, and a tolerably good recovery be effected. Capped Hock. — This is a common and not a serious occurrence. It is produced by injuries to the tuberosity of the os-calcis. It is a little swelling upon the point of the hock. The gastrocnemius inter- nus winds around the externus and forms the cap of the hock, and in this place there is a large synovial bursa ; there is also a bursa situated between this and the skin, and injuries to these give rise to capped hocks. Causes. — External injury, as kicking, etc., are common causes. Some animals have a habit of kicking in the stall. It may be caused by being cast in the stall or box, and some will do it in a nice loose box, perhaps from the manner in which they lie down, or by standing near and rubbing against the side of the stall. Another cause is from influenza or strangles ; from debility and slight dropsical tendency, but it soon disappears if from this cause, when the animal gets stronger and is exercised. It may come in plethoric or gross animals, or from some derangement of the system. It is easily produced — it may be produced in one night. It is easily detected. There is swelling in the part, and, although not serious, it is an eye-sore. It rarely interferes with an animal's usefulness. Endeavour to find whether it was suddenly produced or not. If is between the skin and tendons, there may be a slight exudation, heat, etc., in the parts; but the symptoms are more severe when the synovial bursa is affected. It is generally violently produced. It extends to the sides of the os-calcis; there is heat and pain, and the animal will go stiff and perhaps lame. 128 CAUSES, SYMPTOMS AND TREATMENT OT Treatment. — Remove the cause. If a kicking horse, place him where he cannot injure himself, and you may have to pad the stall, and if you are called, at first, to a case suddenly produced, give a good dose of purgative medicine if the horse is in good condition. If there is any irritation, foment, then apply cold ; and hand-rubbing tends to stimulate the parts and produce absorption of the fluids ; use the ordi- nary liniments and blister ; and there are exceptional cases where you may insert a seaton or open. Where it is violently produced, and serum is formed, you might use the aspirator, or knife, if in the bursas mucosae. You will find benefit from iodine or anything that stimu- lates absorption. It is difficult to remove. Do not be led into punc- turing too freely, although it is sometimes very tempting. Tincture of cantharides is of benefit in many cases. Curb is an enlargement of the back part of the hind leg, a little below the hock, due to sprain or complete rupture of the calcaneo- cuboid ligament, or, some say to irritation of the sheath of the tendon ; but in most cases it is sprain of the ligament. Causes are predisposing and exciting. Certain breeds are more liable than others ; also, a faulty conformation ; long os-calcis, inclin- ing forward, instead of backward, gives rise to what is known as a curby hock. The exciting causes are hard and fast work. It is most common in fast horses. It is often produced in winter by being driven in deep snow ; or, forcibly backing an animal with a heavy load. Syniptows. — This is easily detected by viewing from the side. It generally produces lameness, but not of a permanent character, and is not so serious as sprain ; the parts are hot and tender, and there is enlargement ; when standing, he flexes the limb. If the horse stands for a day or two, the lameness usually disappears, but returns if used, while there are other injuries in which the reverse is the case. In almost all cases where it is suddenly produced there has been a pre- disposing tendency. Although curb is said to occur on the back of the leg, a little below the hock, it varies to a slight extent. It generally occurs in young animals, and is more serious than in older ones. It is sometimes called soft curb, when there is a bursal enlargement with it. It is likely to be associated with more or less irritation. It will be a long time before such an animal will be fit to do much work, and treatment has but little effect. If it is low down, the animal will stand upon the toe ; will be more or less lame — sometimes extremely lame. But this soon disappears in an ordinary case, but comes back when put to work. Treatment. — It can generally be successfully treated without any blemish ; treat just the same as sprain of any ligament or tendon. It is well to give rest ; however, you cannot always do this ; but if in a very valuable horse, give rest ; foment when there is pain ; use anodyne applications, and in most cases follow by a blister, which has an excellent effect in getting rid of the irritation ; cantharides is perhaps preferable to mercury ; clip the hair and then rub it in for ten or fifteen minutes ; leave on for a day or two, and then wash ; shoe with a shoe a little higher at the heel than at the toe ; it tends to take the strain off the part. You may have recourse to the firing iron, but I am no great advocate of firing for curb. Caus- tics are sometimes applied, which destroy the hair bulbs and pro- duce a worse blemish than the curb. Irritation in the articulation may call for firing. If you are called to treat a horse that is in training, two or three years old, perhaps there are thousands of dol- DISEASES OF DOMESTIC ANIMALS. 129 lars at stake, and the owner wants him ready for the engagement ; perhaps you can, by the judicious use of cold water and anodyne lini- ments, get him ready ; however, the proper treatment would be to rest, physic, foment, blister, etc.; but if there are several thousand dollars at stake, it makes a difference in the case. Use cold water, with acetate of lead, powdered opium, etc. Inflaniiuation, or Sprain of the Hock.— Perhaps there are well marked symptoms, or it may be that some of the little ligaments are injured and no plain symptoms present, but the animal does not flex the hock so nicely as natural, or perhaps he lifts the foot from the ground. Manipulation will assist you in diagnosing this. Give rest, foment, and in some cases blister. Open Joint in the Hook is a very serious injury, and if produced in a violent manner, from a kick, etc., the chances are that it will result in anchylosis, if it does not destroy the animal by the constitu- tional fever. There is intense pain, the foot lifted from the ground, the soft tissues swollen, and you are told that the animal received a kick in that region. It is likely that anchylosis will be the result. The same applies to open joint in the stifle, and if it occurs to a horse not worth more than eighty or one hundred dollars, it is generally best to recommend his destruction. Sometimes it looks much like open joint when the capsular ligament is not ruptured. Bursal Enlarg-enients, just little puffy tumors. In any region where there are tendons and prominences of bone, there are little bursas, and these may be enlarged both inside and outside of the hock, but they rarely interfere with the animal's usefulness. Treat the same as wind galls. Gastrocnemius Internus is liable to slip out of its place, where it passes over the joint of the hock, and it is very difficult to get it into its place, but nature accommodates itself to the changed condition of the parts. It is, of course, best to get it in its place, but if you can- not, then allay the irritation until nature accommodates itself to the change. Ulceration of the Tibia, — I saw a case; the animal became sud- denly lame from being ridden hard once or twice, was laid up and treated with the ordinary applications ; got better, but afterwards died from congestion of the lungs. There are just about the same injuries below the hock as are met with in the fore extremity, but sprain is more frequent in the hind limb, and break-down more frequent in the fore leg. LAMINITIS. Laminitis signifies inflammation of the sensitive laminae, and is, perhaps, not a good term, as there are other structures than the laminae involved, and, in a well-marked and severe case, the whole sensitive structures are involved — the bone, ligaments, etc. Another name is founder — a name, perhaps, applied from the peculiar manner in which the animal progresses. When it terminates quickly in reso- lution, then it is principally in connection with the sensitive laminae structures. It occurs in the acute, sub-acute and chronic forms. It is serious, and, perhaps, one of the most painful diseases to which the horse is subject, as the parts are extremely sensitive, and are largely supplied with blood and nerves, and enclosed in the hard and resist- 130 CAUSES, SYMPTOMS AND TREATMENT OF ■ ing hoof, which adds to the severity of the irritation, and in inflam- ; mation of these parts, the same changes take place, to a certain ' extent, as in other parts ; but swelling can only take place to a moderate extent, making it more severe. But suppuration of the ; sensitive laminae takes place, and often necrosis of the bone. i Causes. — Some are said to be predisposed — some breeds, and those i having weak feet — but it may occur in any kind of feet, and, in an | acute attack, in a good strong foot, it is apt to be more severe than in J a worse foot. Hard and fast work are exciting causes. It may be | produced easily, and is more common in the hot months of summer. ' Shoeing is put down as a cause, and perhaps it is in some cases. If - the shoe bears upon one part of the foot, it may set up irritation. ' This may spread and involve the sensitive laminae. Any irritation | of the stomach and intestines is liable to be followed by laminitis, j because there is a similarity of structure in the laminae, skin, and i mucous membranes, and irritation in any of these, especially the stomach, is liable to extend and involve the feet. Some feeds are I more likely to produce it than others ; even a small amount of wheat, ; just sufficient to set up slight colicky pains ; these pass off and the : animal is attacked with laminitis. And the same may occur from . irritation of any mucous membrane. The irritation of parturition " sometimes causes it. An ordinary dose of physic may produce it. 1 Some call this metastasis ; that is, that when inflammation attacks ; one part, it is liable to fly from that and attack some other ; but I • think this is incorrect. Laminitis may be easily produced by driving : an animal eight or nine miles on a hot summer day, and then put in ! a stable where the perspiration is suddenly checked by a draught, etc. ; Symptoms. — It is easily detected if in the acute form. There is ■ fever, and a quick, full, bounding pulse, fifty, sixty, or seventy beats per minute, and perhaps sweats bedew the body, and it may remain in this condition for some time. The horse is stiff, and moves with the greatest difficulty ; the constitutional symptoms are violent, and you might think he was suft'ering from disease of some internal organ ; especially if his wind is affected in any way, you might think he was suffering from some disease of the respiratory organs ; after seeing one case you should easily recognise the next. The horse generally retains the standing posture, but sometimes lies down. These symptoms may be present in other diseases, but if you attempt to back him then the true character of the disease shows itself. He throws his weight upon the heels to relieve the toe, and if you attempt to push him back he drags the feet ; there will be heat around the coronet and a throbbing of the plantar arteries. If it is only in the fore feet, as is generally the case, he walks in a peculiar manner, throws his weight upon his hind limbs by putting them under him, and goes in a kind of jumping manner, keeping the weight upon the frog. A casual observer might think it was inflammation of the lungs or kidneys. When both fore and hind feet are affected, the symptoms differ ; he will endeavour to throw weight upon the hind feet, although they are affected. He will stand with the feet close together, and when the weight is thrown upon one foot it is jerked up quickly, almost as if suffering from some ner- vous disease. Sometimes it is produced in only one foot, and when so it is generally from some well marked cause. It is likely to follow some injury to the foot, in which he cannot mark the limb, and stands upon the sound one, and it not infrequently brings on laminitis in the sound limb, as well as ringbone, spavin, etc. In such cases watch the DISEASES OF DOMESTIC ANIM.^XS. 131 sound limb carefully. If it occurs in both hind feet only, it is likely it was brought on by driving on hard roads without shoes. If it comes from the stomach, it is likely to attack the fore feet, or both fore and hind feet. In a majority of cases produced in the ordinary way, when it affects only the sensitive structures, the sensitive laminse, sole and frog, it terminates in resolution, but when the exciting cause has been of a severe character, great changes take place. The inflammation then involves the other structures, causes separation of the sensitive and insensitive laminae, and descent of the coffin bone, making the sole convex and giving rise to what is known as pumiced foot, or the bone may descend right through the sole, and the hoof will grow out of all shape. A mild attack may produce all this if the exciting cause is kept up, or when you are not able to relieve the irritation. Treatment. — Although serious, it is, in many cases, satisfactorily treated. The constitutional symptoms are generally best relieved by sedatives and purgatives ; but it is sometimes the result of super- purgation ; then do not give a purgative. In just an ordinary case, remove the shoes, and have the wall rasped down nicely, but not to too great an extent, and then envelop the foot in poultices, hot being perhaps preferable ; and give a dose of purgative medicine ; and I give larger doses than are recommended in our works, and as soon as it begins to act the symptoms become less violent ; but you must regu- late your dose according to the size, age and condition of the animal. Give injections of soap and water ; also give a good sedative — Flem- ming's tincture of aconite, fifteen or twenty drops every two or three hours, until relief is obtained. In some cases you may take some blood, and it is a good thing in many cases. As to whether it should be local or constitutional, there is a difference of opinion. I think it is just as good to take it from the jugular vein as any. Some bleed from the toe, but it is liable to cause irritation. When you do bleed do not give so much purgative medicine ; give nitrate of potash freely. Some say, and I believe, it can be checked by the free use of nitrate of potash. Give two or three drachms two or three times a day ; give it in water, and allow plenty of water — not much at a time, but give it often until the physic begins to act, and then be careful with it for some time, and when the animal begins to get better, do not push medicine too far. When there are no signs of relief, you may expect that exudation is taking place, and it may be advisable to make an opening at the toe and let it out, and if this is done in due time it may prevent descent of the coffin bone ; but if in about three days the ani- mal is relieved, and moves tolerably well, a little exercise is beneficial, and perhaps it is well to again apply the shoe. If the animal retains the standing posture, it is good practice to lay him down ; some recom- mend sHngs, but I think it is better to lay him down, which is easily done. Tie up one fore leg, and attempt to move him, and you can easily lay him over, and in most cases he will lie quite well if the symp- toms are relieved in three or four days. The former shoes will do to be put on, but those without heels or toes are best. There is a kind noticed in Williams' works ; it is a bar-shoe, very thin at the heel, but I do not recommend it in the early stage of the disease. A horse that has suffered from this should be carefully used for some time ; if he is put to work too soon it is apt to assume a sub-acute form. If you have treated an acute case, which has done well, but there remains some heat, a good cantharides blister around the corona is of benefit. Laminitis, Sub-acute and Chronic. —This may occur in any horse, but it is most common in aged horses. The symptoms are not so Ib2 CAUSES, SYMPTOMS AND TREATMENT OK prominent as in the acute form. It comes on gradually, and, like other diseases of the feet, the great exciting cause is hard work — especially irregular work. But it may be from faulty shoeing, which sets up irritation, which extends and involves the laminae. Soft, brittle and small feet are more liable ; that is, if the feet are out of proportion to the size of the animal — a small horse should have a small foot. Another cause is standing in the stable or on board of ships. Those horses that are imported frequently suffer from this. Symptoms. — There is heat in the foot ; he walks with a kind of stumbling action ; the laminae are likely to lose their attachment, then the animal throws its weight upon the heels, throws the limb up in a peculiar manner, and tries to bring the heel down first. It may terminate in pumiced foot, even when the animal showed in great pain, and perhaps worked all the time ; yet considerable changes may have taken place. The foot may have been slightly tender, but no well-marked lameness, and if it continues for any great length of time the treatment is tedious and not very satisfactory — not so satisfactory as in the acute form. The shoe, in most cases, should be removed ; rasp the wall down at the heels, and it may be advisable to take off some of the sole in some cases. Then apply poultices, or keep the ani- mal standing in a water-bath ; use moistened clay, etc. Cow-dung is recommended, but is very injurious, but it might be used with three or four parts of clay, and kept moistened, but I do not recommend it. Give a laxative ; do not keep the shoes off too long, and in some cases it is not advisable to keep them off at all. If the sole is very thin, it may be necessary to keep the shoes on. After the heat and tenderness is removed, then use a bar shoe — a shoe thinner at the heel than at the toe. If the irritation continues then blister around the corona, and well up toward the fetlock, and use such an animal carefully. If it is a valuable animal, and in the spring of the year, turning out in a soft nioist pasture is of great benefit. Such an animal is not usually valu- able for fast work, but may be valuable for slow work. Another symptom is wasting of the muscles of the limb and chest, giving rise to the so-called chest founder. However, there is no such disease. The result of laminitis is Pumiced Foot. — This is not a very good name, but it is difficult to change the name of some diseases. It is a name applied to the condi- tion of the foot where the sole becomes convex, due to descent of the coffin bone. But there are certain conditions seen, especially in a flat foot, where the walls have been cut down, etc., where the sole is con- vex and not due to laminitis, but to faulty shoeing. In this case there will not be the effort to throw the weight upon the heel. In pumiced foot the descent is toward the toe of the frog, and the wall is thinnest there — so thin it can be easily cut through into the sensitive part. Pumiced foot is easily detected by the unnatural convexity of the sole. This may occur in either the fore or hind feet. If in the hind feet, it is generally the result of a severe attack of laminitis, and the bone may descend through the sole. If there is irritation, endeavour to allay it by the ordinary means — poulticing, water-baths, etc. — then apply a nice-fitting bar or concave seated shoe ; then a blister around the corona ; and a run in pasture is of great benefit. A horse that has been so affected is not serviceable for that work, but may do upon a farm. Yillitis is inflammation of the secreting villi, and Coronitis is inflammation of the corona. The causes, symptoms and treatment are the same as in laminitis. DISEASES OF DOMESTIC ANIMALS. l35 CORNS, ETC. Corns are generally found in the fore foot, but may possibly come on the hind foot, and are oftenest found on the inside of the heel, be- cause it is rather weaker, and the animal throws more weight upon the inside. They are brought on and aggravated by pressure ; they are brought on by the same cause, but are of a different character from those in man. In the horse it is simply a bruise of the sensitive sole, in the angle between the bars and wall, giving rise to extravasa- tion of blood into the horny sole. A change may take place and an imperfect growth of horn result, if the cause is kept up. There are soft, hard, and suppurating corns ; these are just different stages of the disease. If it is a soft corn it is perhaps of long standing. Horses .with weak and flat heels are more liable, but it is quite possible for it to occur in any foot, and if in a strong foot it is more severe and more difficult to treat than if in a poor foot. Causes. — Are shoeing and hard work. Shoeing with a seated shoe is a prolific cause. Such a shoe bears upon the heel — the weakest part of the foot — more than any other. The shoe should be made narrow at the heel — paring the foot unnaturally at the heel causes it Symptoms. — The horse is more or less lame in most cases, and is generally most lame when the bruise is first produced. There is a tendency to point the foot if only one is affected, if both are affected he shifts from one to the other. He can go pretty well upon soft ground, but hard roads or weight upon the back mcrease the pain. Take up the foot and tap it with a hammer, and it causes pain. The lameness is great if suppuration has taken place. He knuckles at the fetlock, and this may mislead you. You may see redness just by cleaning under the shoe, or you may take it off. An animal may be lame from a corn, and not show any redness. Just riding a horse three or four miles may produce corns if he is not properly shod, and suppuration may take place quickly. Treatment. — In many cases it is not necessary to lay the horse off work, especially if used at slow work. Eemove the shoe, cut the heel down to a certain extent, and sometimes the sole, but not into the quick, unless there is suppuration ; and if he is to work, apply a shoe that will prevent pressure — sometimes just the ordinary shoe. A bar shoe, in most cases, is preferable. Keep it on for two or three weeks, so as to throw the weight upon the frog — something like the Good Enough shoes, or that recommended by Prof. Williams. I believe that if horses were shod with shorter shoes, and care taken to take the pressure off the heels, corns would not be so common. If there is much irritation, allay it by poulticing, cold water, etc., and if it is suppurated, cut down and let the matter out, for if you do not, it will make its way to the top of the hoof, and cause quittor. After the irritation has been allayed for some time, then blister around the coronet. Corns are considered an unsoundness, which greatly depre- ciates the value, and may be overlooked in examining for soundness, especially in a strong foot. You may have to cut considerably before you come to the extravasation, which may be very slight, yet sufficient to cause lameness. Thrush is an irritation in connection with the frog, giving rise to a purulent and offensive discharge, which is characteristic of thrush. It is oftenest seen in the hind feet, and is due to a slightly diseased state of the venter surface of the frog, particularly in connection with 134 CAUSES, SYMPTOMS AND TREATMENT OF the cleft. It f»ive8 rise to irritation, spreads, impairs the secretion, and gives rise to this discharge. Causes. — There are extrinsic and intrinsic causes. It is sometimes seen in the fore feet in navicular disease. Any irritation of the foot may produce it. The extrinsic cause is wet and filth, allowing dung to accumulate, irritating the parts, etc. Heavy horses are more dis- posed to thrush, canker, cracked heels, etc. Thrush is not so preva- lent in a cold climate. Symptoms are plain. The horse does not actually go lame, but goes tender, and if he steps upon something hard, he will flinch ; and there is a discharge of a peculiar odour, etc. Treatment. — It is easily treated. If due to ordinary exciting causes, as filth, etc., remove the cause. In some cases take off the shoes and pare down the parts — remove any detached parts — and immerse the foot in a bucket full of water. Use astringent dressings — the carbolic lotion, one part of acid to eight, ten or twelve of water, or chloride of zinc five or ten grains to an ounce of water — and apply well into the cleft, and then apply some tow or cotton saturated with tar. There are other remedies, one is dusting the parts with powdered calomel ; pressure is useful after these. Where horses get frog pres- sure thrush is not so common. Thrush may terminate in canker, but it is the exception and not the rule. Use sulphate of copper, butter of antimony solution, and the tincture of chloride of iron. A change of dressings is of benefit in most chronic cases. PUNCTURES AND PRICKS. Punctures from a nail passing through the sole, etc., may or may not be serious, according to depth and direction. If a puncture is in the frog, near the navicular bursas, it is liable to be severe, for it may injure the tendon, or even the os pedis. When so, the whole limb may swell and become gangrenous. If it passes in the frog, and its course is to come out above the frog, it is not very severe. Sometimes it only just penetrates the sensitive structures, and the animal is not lame, but a little tender, in which case you have difficulty in diagnosing — and some of the greatest mistakes that are made by a veterinary surgeon are in diagnosing lameness. You may imagine there is lame- ness and heat in the hock, and perhaps there is heat there from the irritation in the foot. Symptoms. — If it is in the hind foot, the animal knuckles ; if in the fore foot, it is pointed, and when weight is thrown upon the affected foot the other is quickly brought forward. Examine carefully ; take up the foot and tap it with a hammer, and he will generally evince pain ; and he may show pain when you tap upon the side opposite the injury, and not show it when you tap upon the injured side. The horse will perhaps knuckle just when starting, for a few steps, and then walk all right. If in the frog, and you cut off some of the soft part, there may appear a small dark speck, tap up on this and it causes pain, then it likely is a puncture. Treatment.— It was at one time recommended, although not much laine, to cut the sole down and immerse the foot in poultices ; but there is generally no necessity for cutting much, but put the animal off work for a few days and apply a poultice. But sometimes the irrita- tion increases instead of subsiding. Then it is necessary to cut down thoroughly, and let the matter escape ; if you do not it will extend DISEASES OF DOMESTIC ANIMALS. 135 and produce quitter. In some cases of puncture the whole of the sen- sitive and insensitive frogs become detached. Then you must remove the frog, for a new frog has to be produced. The after treatment is to poultice, use mild astringents, etc. Sometimes a fungus growth results, which, in some cases, is very difficult to remove. You may have to use the knife, hot irons or caustics. Suppuration, in some cases, is pretty severe, and in other cases is the better termination. If it is in the region of the navicular burste, and not followed by suppuration, the inflammation may continue and prove more difficult than suppuration, or the sole may be under-run from a puncture, which did not give rise to suppuration. Then use the knife pretty freely, for if you do not, the new sole grows, the old presses upon it and keeps up the irritation. In cutting in a puncture do it carefully, and do not wound the healthy tissues. There may be irritation and not suppuration, and if you cut down carefully the irritation may subside. Pricks. — This injury results from shoeing. It may or may not be the result of carelessness. It may result from very thin walls, or from the use of improper nails. The symptoms are about the same as in punctures, but the nail may have been driven into the quick, and then drawn out, and drives again. In such a case, if the animal is kept quiet for a day or two, there will not generally be any bad results ; but if worked, irritation is set up, lameness, etc. ; or, perhaps, a nail is driven very near, but not touching the sensitive parts, the animal may go well for some time, then strike a stone, the concussion irritates, and suppuration results, and causes great lameness. Remove the nail, and if matter is formed, let it out ; after the irritation sub- sides, put on the shoe ; use a little tow and tar, or a leather sole. CANKER, SAND-CRACK, ETC. Canker. — This is of an inveterate character. It is more common in heavy horses. It is a fungus growth. It may involve part or all of the sole and frog. Causes. — Perhaps from sulphuretted hydrogen diathesis, or con- stitutional diathesis. It may be produced by irritation, as puncture, and may supervene a slight attack of grease. An exciting cause is standing in filth, dung, urine, wet farm yards, etc. Symptoms. — A fungus growth appears; the horse is lame ; the sole becomes absorbed to a certain extent, and this growth extends and may involve the whole sole and frog. It is very vascular, and bleeds readily. It is difficult to treat, if due to a diseased condition of the parts. Treatment. — It is necessary to use the knife freely, and remove all the horn in connection with it, or cut and then use caustics. Nitric acid is as good as any caustic for this. Then apply pressure by means of a piece of brass, iron, wood, etc., extending between the sides of the shoe ; or, if the horse is not extremely lame, a little exercise may give sufficient pressure. Cover the injured parts with tow and tar. Sulphate of copper, chloride of antimony and nitrate of silver are used as caustics. Prof. Dick's remedy was sulphuric acid two drachms, verdigris two drachms, and sufficient amount of tar. Prof. Williams says to remove the whole sole, even in an ordinary case (I would not recommend this unless the greater part of the sole is impaired), and then use chronic acid, covered with tar and 136 CAUSES, SYMPTOMS AND TREATMENT 01* tow. To treat this requires patience and perseverance, and you may subdue the fungus growths and produce a healthy growth. Sand Cracks, or Qaarter Cracks. — Called quarter, perhaps, be- cause the quarter is most likely to be affected. The crack extends down the wall, parallel with the fibres. It is called sand cracks because it is common in horses kept upon hot sandy soil — a horse raised upon moist land has a larger and flatter foot than those raised on dry land. Sand crack is oftenest seen on the inside quarter of the fore foot, and in front of the hind foot, but may appear on any part. Causes. — Some breeds and certain usage predispose to it, and shoeing with high heels and" toes, high condition and irregular exercise, dry weather, etc., before the crack makes its appearance. I think there is impaired secretion and a slight irritation, but it may appear in a healthy foot. At first it is generally just a small crack at the top of the hoof, and extends into the sensitive parts, or it may only extend through the horny part and not into the sensitive parts. The crack contracts when stepped upon, and expands when raised. This bruises the sensitive parts, and causes irritation, inflammation, and suppura- tion, and, if the animal is still kept at work, severe consequences may result. The hoof will not reunite, but must grow from the top, and takes a long time. It is, generally speaking, unsoundness, but if properly used it does not interfere much with his usefulness. Treatment. — When lame remove the shoe. Cut down the wall im- mediately under the crack, then allay the irritation. Bathe or im- merse in warm poultices, etc., then endeavour to promote the growth of horn — a blister around the coronet stimulates the growth — and when it grows down about an inch then a little exercise is beneficial. Cold water is also a stimulant for the growth of horn. If the horse must work, cut down the parts, and endeavour to keep the sides of the crack together by means of clamps, using the necessary hot iron to give a hold, and if in a strong hoof there is but little trouble — in thin walls you might wound the sensitive structures or a nail may be inserted in the form of a clinch in a heavy hoof, or a brass plate put on with screws. The firing iron is often used, and is sometimes benefi- cial. If the crack extends half-way down, then you must bottom the crack, as it is called, then fire in a sort of a V shave to weaken the attachment. Some strip off the horn entirely and allow new horn to grow. Shoe with long shoes, and give frog pressure. The cold of winter as well as the heat of summer predisposes to it. In examining for soundness it is generally easily detected, but if the hair is long it may be overlooked, and some honest (?) people fill the cracks with gutta percha. A bar or round shoe is a good kind of shoe for sand crack. Tread, Over-reach and Calk are common in winter, especially when high sharp shoes are used. Even if very trivial, and neglected, they may prove very serious. Treatment. — If it penetrates some little distance, the horse is kept at work and suppuration results. The animal will be very lame ; tapping slightly gives pain. It is sometimes advisable to remove the shoe ; cleanse the parts ; rasp the wall down ; cut down carefully ; remove any hair, etc. Then apply a nice light poultice, and then astringents. If not attended to the matter burrows and it becomes a serious trouble, and may even result in a quittor. Do not use any powerful remedies. Equal parts of oil of tar, tincture of benzoin and linseed oil is a good application. The lateral cartilages may be out in DISEASES OF DOMESTIC ANIMALS, 137 over-reach, and if so, it takes a long time to recover. Bring the parts together if there are any chances for reunion, but if not, then remove the detached parts ; use luke-warm water, astringents, etc., and if any little growths spring up, subdue them by the usual means. If there is great pain use an anodyne — opium and water, or even chloroform. Sometimes, after the irritation, a new growth of horn commences, and takes a long time for it to grow out, and, perhaps, when it extends about one-third way down it comes in contact with the old, and irri- tates it. This is more serious right in front. The result of all these injuries may be quittor. INJURIES AND DISEASES OF THE FEET. The Feet. — In injuries to the feet, from calks, etc., there is some- times profuse hemorrhage, and the best way to arrest it is by pres- sure. The surgical way would be to take up and ligature the artery ; but this is difficult to do, and it is tolerably easily arrested by pressure and styptics, as the tincture of the chloride of iron, acetate of lead, and perhaps a tourniquet will be needed. Apply pads over the arteries and then bandage, and keep up the pressure for twenty-four or thirty hours if the hemorrhage is profuse. The hemorrhage may weaken the animal, but there is no great danger of fatal hemorrhage, although there are exceptional cases. Quittor is a fistulous opening between the sensitive and insensitive laminae, and may result from the various injuries to the feet, as punc- tures, bruises, pricks, corns, treads, etc., which ends in suppuration, and the matter does not get a dependent opening ; it extends, destroys the tissues with which it comes in contact, and finally bursts and forms a sinus at the head of the hoof. A swelling first appears at the top of the hoof, which is hard and painful, and then bursts. It is more serious in a heavy horse, and in the hind foot. It may extend around the greater part, or entirely around the coronary band, form- ing a series of abscesses and finally sinuses. Treatment should be energetic and careful. Look carefully and endeavour to find the original cause. Generally take off the shoe ; cut down the sole and wall immediately below the abscess or sinu?. If from a corn, and the sinuses are not formed, this treatment may arrest the irritation. If it is from a corn, or injury to the parts below, treating a little abscess at the head of the hoof is not always successful, but use the knife and rasp pretty freely, and if sinuses extend down, follow their course. Endeavour to remove the wall and allow the matter to escape ; and the bone may be injured, when it is very serious, but the symptoms are just the same. Cut down and expose the bone, and touch with hydro-chloric acid, or scrape it. Ne- crosis of the OS pedis may result from quittor. After laying the sinuses open, inject with corrosive sublimate one ounce, alcohol one ounce, ftnd water one ounce. Inject every day for three or four days. This causes sloughing and brings on healthy action. Caustics have been recommended, just the same as for fistula or poll-evil, and in some cases it is good practice to use them. When there is difficulty in opening up, you may take a few grains of corrosive sublimate, roll it up in tissue paper, and insert to the bottom of the sinus. Sloughing will take place in three or four days, and a healthy action results. It requires dressing every other day. Prof. Williams refers to 138 CAUSES, i^YMPTOMS AND TREATMENT OF a treatment which was a secret, but he thinks it was the tincture of the chloride of iron which was used. After you arrest the discharge, and some tenderness remains, then a blister is of benefit — and a blister may be of benefit, although there is a sinus present. Bruises. — The sensitive sole is liable to bruises, especially upon macadamized roads, where there are rolling stones. This causes more or less lameness, and it is difficult to say just what part is affected ; and there may be extravasation of blood in the sole, somewhat like a corn. A tap with a hammer causes pain ; if more severe, it may be followed by inflammation, suppuration and extreme lameness. Then remove the shoe ; cut down and give exit to the matter. The pincers also aid in finding the seat of lameness in the foot. Seedy Toe. — So called because it is generally found in the toe, and the horn breaks or crumbles in small pieces, something like a millet seed. It is due to an impaired secretion, the result of some slight irritation or other, some predisposition, or to some direct cause, as large clip in shoeing, which presses upon the sensitive parts, causing an abnormal secretion. The hoof is easily broken down ; you can even break down the connection between the wall and sole. Treatment. — In many cases the horse is not lame, but it is an un- soundness, which may be overlooked. Remove the shoe, cut down the wall and diseased sole, and endeavour to remove the diseased parts. Apply a pledget of tow, saturated with carbolic acid, oil of tar, etc. Overcome the irritation with poultices, hot or cold baths, etc. ; and it is good practice in some cases to blister around the coronet ; or, if you have plenty of time, use cold water. It is not very serious, but it requires some time for the healthy growth to take place. False Quarter. — This term is usually applied to any condition where there is an abnormal condition of horn, and it is the result of an injury to the coronary substance. It secretes the horn, and if it is injured, it does not secrete properly. And in some cases there is no secretion from the coronary substance, but from the sensitive laminae only ; or, ir may secrete, but there will be a ridge on either side. This does not do any great harm, but if the only secretion is from the laminae, it is more serious. It may come in any part, most likely to come in the heel. Treatment is not often required. You may rasp it if necessary. This may come from a calk. NAVICULAR DISEASE. Navicularthritis, Coffin Joint Lameness, etc.— This is common. The parts involved are the navicular bone and the bursa in connection with the perforans tendons. Pfl^/jo/o^v— There has been some difference of opinion among emi- nent veterinarians about the pathology of this. Contraction of the foot was supposed to be a disease, and we still hear of it, and it is quite plausible to a person not acquainted with the parts, ^ut the so called specific for this disease will not stand the test when put into practice. Contraction is not a disease, but the result of disease, and especially of navicular disease. Some thirty-five years ago navicular disease was said to be inflammation set up in the navicular bone ; then it was thought that it began in the tendon — Prof. Dick advo- cating that it began in the tendon. Prof. Williams says it commences in the cancellated structure or in the cartilage of navicular bone. DISEASES OF DOMESTIC ANIMALS. 139 Flemmings thinks it commences in the tendon. I believe it may com- mence in either of the three, and if it comes on slowly, it begins in the bone or bursse ; but if it is suddenly produced, it begins in the tendon ; for we find that after a punctured wound in the foot, it is sometimes the case that the animal remains lame from navicular disease. It is then in most cases the result of inflammation in the cancellated structure of the navicular bone, which extends and inter- feres with the nutrition of the articular cartilage, giving rise to caries. The bursa is destroyed and the tendon becomes attached to the bone. The tendonous fibres may become destroyed to some extent, which accounts for the tendon giving way after neurotomy. Contraction of the foot may be caused by a slight irritation of the sole, and sensitive laminae, and it is difficult to say whether it is this or navicular disease, until after a time the symptoms become plain, ii it is navicular disease. Causes. — Hard and fast work are the exciting causes. In some ani- mals there is an hereditary tendency — a short upright pastern, with a stubby, imperfect action, and a very high action, which pounds the ground ; allowing the toes to grow too long, cutting down the heel at every shoeing, etc. We find it is rare in racing,hunting, and even in the trotting horses, so long as they are used upon the turf, although they are subject to hard and fast exertion, for they are shod so as to keep the feet in a natural shape. But when they are shod with high heels and toes, and are driven upon hard roads, then they are liable to have navicular dis- ease. Injury to the perforans tendon and irregular exercise tends to produce it. Symptoms. — There is usually more or less lameness — very sudden and severe in some cases, in others slight and gradual — and perhaps for weeks or months it may be somewhat transient before it becomes permanent. Just when brought out in the morning he goes lame for a few steps, and then it disappears. He may be used in this manner for some time, and then grow very lame, then navicular disease is well established, the foot is pointed, etc. This may only be a habit, but when a horse has been used moderately, and is in good health, pointing is suspicious, and it may be present for some time before there is any well marked lameness or tenderness. If both feet are affected and he is suffering pain, then he throws the weight first upon one foot and then the other, and when brought from the stable he goes with a kind of groggy action, hence it has been termed grogginess. Another well marked symptom is atrophy of the muscles of the limb, which extends and involves the muscles of the shoulder. This is not sweeney, as it is called, but is the result of navicular disease. There are generally well marked changes — atrophy of the foot and contraction of the hoof — and is easily noticed if but one foot is affected. There are other means of forming an opinion : tap with a hammer over the region of the navicular bursa, and pain is evinced, or press upon the tendon at the back part of and close to the frog. This will assist you, but it is not conclusive evidence. Then there are negative symptoms. In a well marked case of navicular disease tliere is generally a nice clean limb. Look at the manner in which the shoe is worn. If it is navicular disease, it will be worn at the toe, but some horses do this in health more than others, so you must make allowance for it. Treatment — If it is of a severe character, and of long standing, perhaps years, then it is incurable. But if recent, in the inflamma- tory stage, of only weeks' standing, or perhaps months', then, a complete cure may be effected. So you must take into consideration 140 CAUSES, SYMPTOMS AND TREATMENT OF the length of time the disease has been in progress. Remove the shoe ; cut down the toe ; rasp the wall, and, in some cases, you may thin out the sole to a certain extent. Then allay the irritation by a judicious use of poultices, water-baths, either hot or cold. Keep him standing with the foot in water two or three hours a day. After the irritation ceases, then blister around the coronet, investing con- siderable surface, or, instead of a blister, you may use a frog seaton. Insert with a curved needle, after cutting down the frog and making an incision in the back part. Dress it with astrmgent dressings ; keep it m for two or three weeks ; shoe with high heels and short toes, if it is due to a sprain of the tendon, but in some cases the animal will go better with an ordinary low shoe. A leather sole may be useful, nicely stuffed with tow and tar, especially if the horse is used upon hard roads, jont is not best in the mud. Sometimes it is advisable to use constitutional remedies — a laxative diet, if plethoric — if in the spring, a run at pasture,. but if in the summer months, and the ground hard, there is not much benefit in it. Be careful about the shoeing, and do not allow the shoes to stay on too long. Although you are satisfied that the disease is incurable, from the symptoms, you may relieve it to a considerable extent. Neurotomy may be successfully resorted to in some cases. This is division of the nervous cord and excision of a part of it, with a view to relieve the pain, but not with a view of curing the disease. The plantar nerves are the ones usually operated on. The low operation is the one likely to be successful, if performed in a proper foot— one that is contracted to a certain extent. Remove the shoe, bring the foot into proper condition, keep the animal quiet for a day or two, and bathe with cold water to allay any irritation and to remove the swelling ; then cast the horse and make an incision about an inch long above the fetlock, exposing the nerve, and remove an inch or more of it, or reunion will take place — a sort of nervous tumour and connection be established. It is not generally a difficult operation, but care must be taken not to injure the artery. If it is performed too high up, you may leave a branch that will furnish sensation. This branch runs obliquely from the inside down and outward. If you perform above this there will re- main nervous influence. After operating, bring the edges of the wound together and apply cold water. When this operation was first performed for lameness it was performed upon all kinds of subjects, many of which were not fit for the operation — and this was one reason why it was brought into disrepute — but if you exercise judgment and select proper subjects, it will prove successful, do you credit and be beneficial to the animal ; but if done indiscriminately, it will prove a lamentable failure. Endeavour to impress the character of the opera- tion upon the owner, for I have known some trouble to arise from the neglect of this, where the operation was not successful. In a flat foot it is not likely co prove successful ; but in a deep, strong foot, although small, it is attended with success. If reunion takes place, you may have to operate a second time. The dangers of neurotomy are from punctures, pricks, bruises, etc., which, on account of there being no sensation in the foot, run on to suppuration, and the first thing that will be noticed is a swelling and quittor, or the tendon may be rup- tured from using it more freely than when pain was present. After an operation the animal should be watched carefully, the ahoes applied with great care, and the feet should be examined every time the horse is brought into the stable. DISEASES OF DOMESTIC ANIMALS. 141 THE TEETH. Odontology is a treatise on the teeth. The teeth are hard and bone-like, and are the principal agents in mastication. They are a combination of inorganic salts, with the previously existing animal matter, and contain about seventy-six per cent, of earthy material, phosphate of lime, phosphate of magnesia, etc., the same as in bone. The teeth are the means afforded us to tell the age of the animal. We find they vary much in different animals, in size, structure, number and position, and also in motion, as for grinding, tearing, pounding, etc. In the horse there is a large grinding surface; in the carnivora they are sharp and pointed ; in the omnivora they are both sharp and tabled. They are intimately related with the struc- tures and habits of the animal, their form depending upon the nature of food upon which the animal lives. Teeth are of two kinds, simple and complex. Simple in the human being and the dog, being covered with one coat of enamel. They are complex in the horse and ox, there being several processes of enamel brought into wear at the same time. This is why the lower animals are not troubled with the toothache. The tusk of a horse is a simple tooth, having but one coat of enamel ; the others are complex, because they have external and internal enamel, bringing different tissues into wear at the same time. In describing a tooth we say it has a body or crown, which is above the gums ; a table, or the grinding surface ; the neck, or that surrounded by the gums ; and a root or fang, which is inserted in the alveoli. Running up the centre of the fang is a cavity which contains the pulp, a highly nervous sub- stance. The sulcus, in which the teeth are inserted, are called aveolar processes, and exist only with the tooth, for if a tooth is taken out the cavity disappears. There are three substances in the tooth — dentine or ivory, enamel, cementum or crusta petrosa. These vary in proportton in the different teeth. Dentine is a yellowish white substance which appears homogeneous to the eye, but under the microscope it is found to be made of tubuli. These begin at the pulp cavity and radiate towards the surface, they are imbedded in a matrix and form a greater part of the body and fang of the tooth. The enamel is the hardest structure in the body, and forms a protective covering for the teeth. It contains about ninety-three to ninety-five per cent, of earthy material ; it is a bluish white substance, covers the crown of the tooth, and in complex teeth it also forms an internal ring which brings the different parts into wear at the same time. It is small in quantity, and is made up of hexagonal prisms, it also covers the little depression of the tooth. There are three classes of teeth, the incisors or cutting, are situated in front, six above and six below ; the canine, or tusks, are in the interdental space ; the molars or grinders are twenty-four in num- ber. The horse has two sets of teeth, the deciduous or milk teeth, which are temporary, and the permanent. The temporary are twenty-four in number, the permanent forty. The incisors show a centre which is greater in the young horse, it is called the infundi- bulum, by means of which we are able to determine its age pretty correctly up to a certain age. This funnel-shaped cavity is usually covered with tartar. Sometimes the teeth are dressed, but it is easy to tell the difference, the black mark has no ring of enamel. There is a little difference in the incisors of the upper and lower jaw, the upper have two grooves, the lower only one. The same is 142 CAUSES, SYMPTOMS A>fD TREATMENT OF true of the molar teeth, those of the upper jaw being more widely separated, and nearly square in shape. The molars generally have two infundibulae. The cutting of teeth in the foal varies some, with which the period of gestation has something to do. If the foal is born sooner than natural they may not appear so soon, but there are generally twelve molars and four incisors at birth, or if not at birth they will appear in about fourteen days. The twelve molars appear as temporary, the others as permanent teeth. The teeth are divided thus : — The two occupying the centre are called central, the two next — one on either side of these two— are called the lateral, the last two on either side are called the corner. So at birth the foal usually has two central incisors ; in about seven to nine weeks the two lateral are cut ; in from seven to nine months the third pair of incisors, and at one year the corner teeth are in wear ; at twelve months the first permanent molar is up and in wear, so we have them thus : Incisors. Molars. Age. Temporary. Permanent. Temporary. Permanent. At or soon) , ^ 2 after birth/ ^ " ^^ " 1 year 12 12 4 2 years 12 12 8 3 " 8 4 4 16 4 " 4 8 24 5 " 12 24 In ponies you may mistake temporary for permanent teeth. At about two years and nine months the central incisors appear; at three, they are up and in wear ; at three and a half the lateral teeth appear ; at four they are up and in wear. At four years old the horse has a full mouth of permanent molars. It is a good plan for you to recollect the time when the teeth make their appearance, and become familiar with the difference between the milk and per- manent teeth. The milk teeth are whiter, and present a pretty distinct neck. The teeth are alongside of each other, forming an oblong or para- bolic arch, and are designated the superior and inferior dental archers, interrupted by the interdental spaces in the horse, but in some animals the teeth are continuous. There are three classes of teeth : incisors, canine and molars ; then there are two sets of teeth ; temporary and permanent. All the incisors and twelve molars ap- pear as temporary teeth. The body of the tooth has an encircling ring of enamel, then dentine and then a central ring of enamel. In this centre there is a black mark. The infundibulum disappears as the animal grows older. It is usually filled with tartar or food, and is surrounded by enamel. The teeth grows to a great extent from tbe pulp. But after this is destroyed, they receive support from the surrounding structures. In the molar teeth there are two or three of these pulp cavities. At an early period of gestation the teeth appear as a small depression in the mucous memljrane of the gums, called the primitive dental groove. Then, in from twelve to fifteen weeks (in the human being), a little prominence takes place, and this is called the papillary stage ; then these papillae become separated from each other and form along by the side of each other, and prolongations pass across between the different papilla, and they develop a follicle or bag ; this is called the follicular stage. DISEASES OF DOMESTIC ANIMALS. 143 Then this follicle or bag becomes separated into a sheet-sac ; this is called the sacular stage. Then a cavity appears between the teeth, called the cavity of reserve. The permanent teeth soon become developed ; press upon and cause absorption of the temporary, until in some cases nothing but the crown is left, which drops out. There is some difference in the number of teeth in the domestic animals. Incisors. Canine. Molars. Bicuspid. Man J % I % ^32 Horse ^ f -}| -S =40 Ox % % \i - =32 Dog I I \i I =42 Pig I S if I -44 The central incisors appear at birth, or in two or three weeks ; the lateral in about nine weeks ; the comer in about nine months, and they are up and in wear at one year old. The first, second and third molars appear as temporary teeth at or soon after birth. The first temporary molar is replaced by a permanent one when the horse is from two to three years old. The second and fourth appear, perhaps, about the same time when he is about four years old. The two per- manent central incisors appear from two and a half to three years — at three they are up and in wear. The lateral from three and a half to four, and are up and in wear at four. The corner from four and a half to five, and up and in wear at five. But they do not come just the same in all animals. I have seen a full mouth of permanent incisors at four years old. Sometimes the posterior table surface does not wear down with the anterior — due to the way in which the teeth grow. This is called shell mouth, and you might mistake an eight- year-old for a six-year-old. Young teeth are widest from side to side; in old ones they are widest from before back. You can tell the age pretty well up to six or seven years. It is well to look at the upper jaw. Sometimes the upper jaw overlaps the under, giving rise to what is called a parrot mouth. At six years the posterior table sur- face of the corner incisors is up and in wear, and the mark is begin- ning to wear out of the central teeth, and when you see the mark worn out of the central incisors, you may say he is six years old. At seven the mark is worn out of the lateral, and at eight out of the corner incisors. By the upper teeth, which do not wear so fast as the others, we can determine the age pretty correctly up to twelve years. At nine the mark is worn out of the lateral, and at about eleven or twelve out of the corner incisors. And even after this, by watching the manner in which they grow, you can tell something of the age. You are also assisted by the tushes, which at first are small, but grow as the animal grows, or in some cases they wear down, and an accumu- lation of cement surrounds them, which tells you the animal is pretty old. Running horses, that are entered as such, date their birth from the first of January — although born in September, he would be called one year old on the first of January. Until lately, in some of the Southern of the United States, it was counted from May. Foals are generally dropped in the spring. Sometimes you have to give an opinion as to the age of the ox, which has no incisors in the lower jaw, but the place is occupied by a cartilaginous pad, and there are eight incisors in the lower jaw, which are called shovel-shaped, and are not so firmly set in the alveoli as in the horse. It is a natural condition, as a general thing, and not the result of disease. The same three tissues enter into their formation. The two incisors in 144 CAUSES, SYMPTOMS AND TREATMENT OF the centre are called the central ; the next two, one on either side of these, the internal lateral ; and the next two, the external lateral ; and the last two, the corner teeth. There are twenty-four molars, of which twelve appear as temporary and twelve as permanent teeth. They are not so regular in their appearance as in the horse, varying according to gestation. The central and internal lateral, if not up at birth, will be up in a month, but they vary much from the breed and care of the animal. You can form a more reliable opinion of the age of cattle by the teeth than by the horns. A well-bred short-horn will occasionally have a full mouth at three years old. The central per- manent incisors appear at two years, the internal lateral at two and a half, the external lateral at three, the corner at three and a half. The first three molars appear as temporary teeth at birth, or in a month after ; the permanent molar in six or eight months — up and in wear at one year ; the second permanent, the fifth tooth in the jaw, at fifteen or sixteen months — up and in wear at two years. At two or two and a half years the first and second temporary molars are replaced by permanent ones. A little later the other molars appear, and the animal has a full mouth at three and a half years. A sheep has the same number of teeth as the ox, and they are replaced much the same way, but generally a little earlier. Unnatural Conditions, Irritation, Etc., of the Teeth.— Dentition begins at or soon after birth, and continues until the horse is five years old, and the animal suffers more or less during that time. The lower animals do not appear to suffer so much in getting their first teeth, but do suffer when getting their permanent ones, even more, perhaps, than the human being. Hence, we have dentition fever in the horse from three or four up to five years old — there is a weak pulse, impaired appetite, a staring coat, the bowels sometimes costive, and sometimes there is diarrhoea ; he is not able to work, and it is hard to say what is the matter, unless the system is affected by the irritation set up by the teeth, for all the organs appear to be in a healthy state. Such symptoms indicate that the temporary teeth are not being displaced in a proper way. The same applies to cattle. The food passes improperly digested, which may be entirely due to the state of the teeth. It is well in such cases to examine the mouth, and if you find some tooth not properly displaced, the gums swollen, remove it — which you can sometimes do with the thumb and finger, or you may have to use the forceps. Then give a mild laxative, feed on soft food and the animal will soon recover. Lampas is very common. It is not certain whether it should be called a disease or not, but it is called a disease, and no doubt there is a change going on in the surrounding parts as well as in the teeth, sometimes involving the submucous tissues, and from the swollen condition of the gums it may interfere with mastication. The gum may be even with or even extend over the teeth. Scarify such cases with the lancet, making two or three incisions, but do not make any incisions behind the third bar, or you will injure the palatine artery and cause profuse hemorrhage, but cut to either side or before the third bar, then feed upon soft food. Sometimes astringents are use- ful, alum and water being very good, two or three drachms of alum to a pint of water. The brutal practice of using a hot iron, was, and is still sometimes, used, and I wish you to set yourselves entirely against such treatment ; it is entirely uncalled for. There is no great harm in scarifving, and it is sometimes highly necessary, but you DISEASES OF DOMESTIC ANIMALS. 145 will have to do it when there is no use in it ; if you do not the animal will be taken to some one who will, perhaps, burn him, and you might as well get your fifty cents or a dollar, and save the animal. Give a few doses of tonics, and the animal will come out all right. You may be called to check severe hemorrhage from cutting of the palatine artery, which is best done by pressure. Saturate some tow with a styptic and place against the pares, or you may take a block of wood and tie it in the mouth to keep the tow in place. You may meet a case where it is necessary to use the actual cautery. There is no great danger of fatal hemorrhage from this accident, but it might weaken the animal to a great extent. DISEiSES OF THE MOUTH. The gums are sometimes irritated in connection with the molar teeth, this irritation extends and affects the pharynx and larynx, and perhaps a severe cough is the result, called a dentition cough. It is often the result of but a slight irritation at the back part of the gums — this cough may not be very severe, but it is troublesome — or the gum may become tumefied. The best treatment is to scarify it. We find tumours in the upper and lower jaw, perhaps from the imperfect development of the teeth, or from their growing in an improper man- ner, from slight injury, irritation, etc. They may or may not be malignant, and are likely to extend and involve the alveoli and bone. If not malignant, and only upon the surface, it is called epulis, and is not very common. If not malignant remove it, and you may also have to extract some of the teeth, then treat as a common wound. If malignant or cancerous, although you are able to remove it, and it may do well for some time, it will return, extend and become a hope- less case. The horse sometimes suffers from sharp, projecting teeth, which occurs more commonly in old horses, from wearing down of the teeth in an uneven manner. They will be sharp on the inner edge of the lower jaw, and the outer edge of the upper jaw, which may be from faulty formation. In such cases the animal has difficulty in eating, grinds his food, ejecting it. Perhaps when driving him he carries the head to one side, from the bearing of the bit not being the same on both sides. If the teeth are sharp in the lower jaw they lacerate the tongue ; if in the upper they lacerate the cheeks. The best remedy for this is the tooth rasp, and there is no necessity for using the balling iron or twitch. After rasping, feed upon soft food for a day or two. There are more difficult cases where the teeth pro- ject to some extent, generally in old horses, due to malformation of the jaw. Sometimes the upper jaw extends over the lower, and a part of the last tooth is not worn down properly, and after a time it inter- feres with mastication, and the animal suffers considerably from irritation. The same appears in the anterior tooth of the upper jaw, but it is not so serious as the back tooth. The animal may be reduced to a walking skeleton, almost ; although the appetite appears good, the food is thrown out. You can detect by examining with the hand, and if it is the last molar tooth you must throw the horse, using the balling iron, and remove by means of the tooth shears or the large forceps. If it is in front, there is no necessity for throwing the ani- mal. After using the shears, rub the parts down smooth with a tooth rasp, and feed properly, and he will improve rapidly. When these growths are from malformation, they should be watched closely, and 7 146 . CAUSES, SYMPTOMS AND TREATMENT OF i no doubt sooner or later they destroy the condition of the mouth, and it becomes necessary to destroy the animal, but it can be relieved to | some extent by the rasp, chisel, shears, etc. There is, as well as the j shears, a sliding chisel, and when you use it, it is better to use a : wooden mallet than a hammer. In using the straight chisel there is i another instrument for an assistant to hold against the back part of j the tooth while you chisel it off. Caries of the Teeth. — The lower animals do not suffer from this as ' much as man, for two reasons ; their teeth are complicated, and the i mode of living. Sweets have a bad effect upon the teeth. Horses : rarely suffer from toothache, but they frequently suffer from carious ; teeth. Caries may commence either on the table surface, root or ' fang, or even in that which surrounds the teeth ; or it may result from ■ a slight injury, as getting a stone, etc., between the teeth when masti- '■ eating ; or it may begin in the fang from improper development of , the dentine, which receives its nourishment from the tooth-pulp, and \ when this is gone the tooth does not receive proper nourishment, etc. Symptoms. — In the early stage they are not very plain, but become ! better developed after a time. The animal will show some irritation | while eating. Although he is hungry, and goes ravenously to eating, ' he will all at once quit masticating, and either holds the food in the \ mouth or throws it out unchewed. This may be due to a slight i irritation of the teeth. He acts something similar to the human being, and these symptoms may be present for some time before j the well-marked symptoms appear. But in, it may be six months i or a year, certain distinct symptoms appear. If it is in the table j surface, the tooth is brittle, and wears down more readily, and the ■ tooth opposite to it grows longer : he quids or rejects the food, \ and a peculiar stench or fetor is present. The animal falls off ' in condition, in most cases. "When it is in connection with the i root or fang it is different. As it extends it involves the other tis- I sues, sets up irritation in the superior maxillary sinus, if it is in the < upper jaw, and gives rise to a somewhat putrid and offensive discharge. ; If it is in the lower jaw, as well as the symptoms given, you will, ! perhaps, notice a slight enlargement which extends down the lower ; portion of the jaw ; sinuses form and matter is discharged. Exercise \ care and judgment and you need make no great mistakes. I knew a '-■, horse destroyed for glanders when it was only a carious tooth. Treatment. — Remove the tooth — and this is not very easily done, but : there are various ways. Open the mouth by means of a balling iron, ! and, if practical, use the forceps. The trouble with the forceps is, i they are apt to break the tooth when they are closed upon it too tight. : There is a tooth key which can be used in the lower jaw, as the teeth , in that are easier removed than those in the upper jaw ; or you may ; remove by trephining, and then by inserting a punch it can be driven ' out. When you attempt to remove a tooth, and it breaks down, it i will in many cases, come away of itself without further treatment, j The first and second molars are the more difficult to punch out than , the others. After treatment : keep the animal quiet ; feed upon soft '■■ food that does not require much mastication. There is a difference in ; treating the cavity. Some recommend filling it with gutta percha, to i prevent the food from passing into the sinus. It will sometimes pass j into both sinuses ; but generally there is no necessity for filling it. If you trephine, it is more needful than in pulling. If food does pass : into the sinuses, then it will be necessary to fill the hole. Sometimes i DISEASES OF DOMESTIC ANIMALS. 14.7 in parrot-mouth the incisors of the lower jaw grow and irritate the mucous membrane of the opposite jaw, when it is necessary to rasp them down. Wolf Teeth are supernumerary, just in front of the molar, and you are often asked to remove them, and sometimes they do harm, but that is the exception, and not the rule. They are easily removed with a pair of small forceps, or they may be punched out. Some think they interfere with the eye, by exerting some influence upon the ophthalmic division of the fifth nerve, but I do not think they have anything to do with irri- tating the eyes. Tooth substance may be develoised in almost any part of the body ; in the muscles by the ear ; in the frontal sinuses ; and even in the remote parts of the body ; even in the testicle, of which I have a specimen. It is common in the lower animals, but not in the testicles. A Foreig'ii Body sometimes gets lodged in the mouth, as a piece of wood from his hay, etc., and possibly becomes imbedded between the molar tooth, and the animal is not able to get it out. There will be difficulty in masticating ; a flow of siliva ; the animal stands with the head poked out, as if suffering from sore throat. He will partially mas- ticate, then try to swallow, and perhaps eject the food. These symptoms are present in sore throat, and it is necessary to make a careful examina- tion ; you are not likely to mistake just one case, but if there is some other disease prevalent that presents similar symptoms, then you are liable to make a mistake. The Tongue is sometimes injured, sometimes by catching the tongue under a twitch, from tying a horse to a wagon, and something causes him to pull back suddenly, and the tongue is lacerated. Bring the parts together as quickly as possible ; sew them up and feed upon soft food. And another wa}^ of injury is in giving medicine, by holding to the ton- gue when the animal pulls back — the muscles become paralyzed, the tongue hangs out of the mouth, and it is lacerated by the teeth. If you think there is a chance of re-union, get the parts into the mouth and keep there by means of a nose band ; but if it is cold and almost dead, then it is necessary to remove the parts, which is easily done. It is not, in most cases, necessary to throw the animal, and there is no great amount of hemoiThage, as it was lacerated, and such a wound does not bleed very freely. Feed upon sloppy food ; give no hay or anything that would hurt the parts. There will be a peculiarity in the animal's drink- ing, as he will place his nose deep in the water after losing part of his tongue. If the irritation came from the use of the twitch it is easily overcome, although it looks very formidable at first. It is best overcome by scarifying slightly in two or three places and bathing in lukewarm water. Place the tongue in the mouth and keep the mouth shut by using a nose band, and it will soon regain its natural condition. The Fraemim Ling:u£e, or the fold of mucous membrane beneath the tongue, is often injured in drenching or giving a ball, or from a foreign body getting in the mouth. It gives rise to a discharge of saliva, difliculty in masticating, the food gets in and increases the irritation, and he falls off in condition. Treatment. — Clean the parts, wash in tepid water, inject a weak solu- tion of carbolic acid, sulphate of zinc, or alum water, etc. 148 CAUSES, SYMPTOMS AND TREATMENT OF INJURIES TO THE MOUTH. Laceration of the Lips. — Bring the divided edges together and secure them ; keep the animal quiet. There are also small tumours, which may be produced by some injury or irritant. If they contain mat- ter, make an incision and let it out — and it is generally better to make the ncision in the mucous membrane instead of the skin — then bathe with astringents. There is also a small egg-shaped tumour that appears in connection with the false nostril, which contains a cheeselike substance, and it is possible for it to become encysted and remain there for a long time. Open and squeeze out the matter, and, if necessary, inject with carbolic acid. The lips may be injured from sharp teeth, or it may be the result of injury from the bit, producing irritation, and, perhaps, in- flammation, aud if matter forms, let it out, either internally or externally, as required, at the same time removing the cause. Or there may be cysts in the ducts at either side of the frasnum lingua, which are called ranula — not very common -in the horse. But treated by opening them up or cutting them out, which can be done with the scissors ; then use mild astringents, or you may even touch with mild caustics. The tongue may become paralyzed from disease of the brain and paralysis of the lips, which usually occurs from injury or exposure to cold, for which see lecture on nervous system. O^lostitis^ or inflammation of the tongue, is not very common, but may result from injury, from pulling the tongue violently while giving medicine, or from eating poisonous herbs, which irritates, and inflam- mation results ; or it may be due to the administration of irritant medicines, as ammonia, or even sweet spirits of nitre, if not sufficiently diluted. It may extend and involve both the extrinsic and intrinsic muscles of the tongue. If it occurs in the mucous membrane. Symptoms. — There is a flow of saliva, impaired mastication, a diffi- culty in swallowing and in respiration, until it is sometimes necessary to resort to tracheotomy. This is easily seen ; the tongue is reddened, pain- ful upon pressure ; perhaps there is fever and the tongue protruding from the mouth. It may terminate in resolution or suppuration ; small abcesses form in different parts, and sometimes induration, and then the tongue loses its condition to a great extent ; there appears a kind of transverse crack ; the animal cannot masticate, becomes greatly emaci- ated, and death may occur from starvation. It is often caused by some foreign body in the tongue. I knew a needle to produce this in a severe form. Treatment. — Remove the cause, give a laxative — oil or aloes if in the horse, Epsom salts is better in cattle. Gargle the mouth with tepid water or laudanum, or if it is from the administration of ammonia use vinegar and water, and if it is greatly swollen scarify it in one or two places and then bathe and allow the matter to escape when it forms You can sometimes prevent induration by scarifying and applying some- thing, as salt and water, which irritates to a certain extent, and may prevent it. Iodine applied to the lower jaw and given internally may be of use. When induration is once established the animal is useless. Barbs is a term applied to an enlarged condition of the papillae or orifices of the sublingual or submaxillary glands. It does not require much treatment, but these enlargemeets are sometimes barbarously removed. They may be removed or subdued by astringents of cold water. DISEASES OF DOMESTIC AMIMAL8. 149 ipthae or Thrush. — This is properly a disease of the digestive system, or sometimes called a dietetic disease. It is called a sporadic apthae, to distinguish it from epizootic apthae, which is rarely seen in this country. The sporadic affects the mouth and the whole alimentary canal. Vesicles and pustules appear on the tongue and lips, and may extend to the skin of the lips, and I believe it extends throughout the whole alimentary canal. It is dae to indigestion and poor food of any description, bad hay being particularly apt to cause it, and the feed affecting many at the same time has given rise to the supposition that it is sometimes contagious. There is a dietetic disease called stomatitis cantagiose, which is also from faulty digestion. Symptoms. — The appetite impaired, the mouth hot, the pulse quickened some but not much and the temperature slightly in- creased, perhaps one or two degrees. He is unable to masticate, and then these small vesicles appear, which run into pustules in some cases. Treatment. — Kemove the cause; give a slight laxative — two, three, or four drachms of aloes — but do not give a large dose, for the alimentary canal is already irritated. You may give it in connection with gentian or ginger, or a small dose of oil. Give vegetable and mineral tonics, or ginger and carbonate of soda, one drachm each, once or twice a day. Use a gargle of alum and water, or a little carbolic acid may be added. Sulphate of copper, nitrate of silver, etc., may be used as stimulants, or you may give quinine in one-half drachm to one drachm doses. Dis- solve it in sulphuric acid, and the best way to give it is in a drench in water. Inflauimatiou of the Palate and Pharynx sometimes results from balling with a stick, or it may iDroceed from some little foreign body lodged in the parts. Laryngitis is more common and much more severe than pharyngitis, and is sometimes produced by the violent use of the probang. Symptoms. — There is great fever ; swelling both internally and ex- ternally, and perhaps the fever is followed by death in from twenty-four to sixty hours. There are all the ordinary symptoms of sore throat, and a stench comes from the throat, and in cattle the swelling extends towards the ear. especially if produced by the probang. Use fomen- tations, give a moderate dose of sedative medicines, and use judicious counter-irritation ; try the inhalation of vapour, and if it gives relief, continue ; if it seems to cause distress, do not use it. And use any of the ordinary gargles, and it may terminate in resolution. Abcesses also occur in the pharynx and it is hard to say what causes them. It is more likely to attack cattle that have a tubercular tendency. In the horse it may result from sore throat, direct injury, etc. If it is high up it interferes with respiration, and there is usually a discharge from the nose ; a difficulty in swallowing, etc. The symptoms in cattle are similar, but are not generally so violent ; he may take some food, but there js a peculiar breathing. You may detect a bulging by pressing on either* side of the throat. The treatment given is to open these abcesses, but it is not very successful. I have never seen it done with success in the horse, but it is more easily done in cattle. There is danger of the matter passing down and suffocating the animal. Use a guarded knife, or a concealed bistouri ; a small knife well guarded, is very good. But you are working in the dark to a certain extent ; however, opening m ay save life occasionally. 150 CAUSES, SYMPTOMS AND TREATMENT OF Pharyngeal Polypi. — These sometimes have a constricted base ; others have a wide base ; the animal will fall off in condition, shows fits of temporary choking, coughs violently, staggers, and perhaps falls, and then is relieved, after which there is a discharge of blood from the nose ; this shows you there is some irritation in connection with the pharynx. If it has a constricted base, you may remove it with an ecraseur, but if it has a broad base, it is better to let it alone, especially in an old horse. There is difficulty in the hemorrhage passing down the trachea and causing inflammation of the trachea and lungs. ffilsophagUS, — Choking occurs in all animals, but is more common in cattle. It may be due to an improperly masticated bolus of food, and this is a severe kind of choking ; or it may be from a hard body, as a piece of turnip, potato, apple, etc., from a ball being given in a hard form. Hence it is necessary to soften balls before giving them. It is sometimes produced by giving an egg without breaking it, or from something taken with the hay. Thorns have been found lodged in the oesophagus. It may either be in the cervical or thoracic portion, and the symptoms are more distressing when in the cervical portion. There are signs of un- easiness ; if there is an attempt to swallow liquids, they are regurgitated ; there is an increased flow of saliva. In the horse there is a spasmodic retching of the neck, especially if it is in the thoracic portion ; there is difficulty of breathing, which may increase and cause suffocation. Symptoms. — Pass the hand along the course of the oesophagus, and if it is in the cervical portion, you can detect it. Another symptom in cattle is tympanites ; but this does not always occur. Treatment. — If the symptoms are not very prominent, endeavour to find the nature of the obstruction, and then the situation of it, and if it is in the pharynx or cervical legion, you may be able to displace it by manipulation. If you fail in this, give a little liquid — some oil if it is a hard body ; but be careful with oil, if it is some partially masticated food. If this also fails, use the probang ; a leather one is best for cattle, and it is not necessary to cast the animal, but it is well in some cases to use the guide to prevent injury to the probang. The treatment in cattle is just the same ; and when you fail to remove it with the probang, cut down if it is in the cervical region, and remove it ; then bring the edges together by a suture. Keep the animal quiet, and give no food but a small amount of liquids for some time. This is not a very successful operation, but if all other means fail, try it. If there is much tympanites and symptoms of suffocation in cattle, use the trochar. Dilatation of the (Esophagus sometimes results from choking. It may dilate to a great extent and cause alarming symptoms ; the animal is from time to time attacked with sj^mptoms of choking, which is better noticed when the food is changed. If it is in the cervical region there will be a pouch formed, which can be felt or seen. If it is in the cervical portion, it may be relieved in some cases by a pad supported by a band- age around the neck— by careful and frequent feeding ; and do not give a sudden change of food. Some say to cut down and remove some of it, but this is impossible. There is sometimes just the opposite of this, or Stricture of the (Esophagus. — There are two kinds, spasmodic and a thickening of the mucous membrane, and when one part becomes dilated from choking another part is apt to be constricted. There is difficulty in swallowing, and food may collect above the stricture, or va&y become re- gurgitated ; flesh is rapidly lost, and the animal may linger for weeks or months and then die. Sometimes you are justified in passing the probang, DISEASES OF DOMESTIC ANIMALS. 151 and when it comes to the stricture it will be resisted, and you may over- come the stricture by the use of the probang Every day, or every other day, a dose of aconite or such remedies may be useful. Sometimes rup- ture is the result of choking, and is very serious. It generally comes from the use of some such thing as a whip stock, to relieve choking, and it might be done vrith the probang. There is both external and internal swelling, great pain, pulse somewhat quick, offensive breath, in swallow- ing, the substances sometimes pass into the areolar tissue, etc. It gener- ally proves fatal. Some recommend cutting down and treating as oesophagotomy, but death generally occurs in two or three days. DISEASES OF THE GLAISDS, ETC. The Salivary Olands. — There are three pairs of salivary glands — the parotid, submaxillary, and sublingual. They secrete the saliva, which is mixed with the food and fits it for digestion. Parotid Glands. — Inflammation of these is not uncommon in con- nection with strangles. It is a hard, inflammatory swelling, extending from the ear downward. In the horse it is apt to terminate in suppu- ration, and sometimes induration. Slight induration is not very uncom- mon, especially in those horses that are tightly reined, producing irrita- tion and thickening of the gland. Use fomentations, poultices, and stimulating liniments — ammoniacal or a weak solution of biniodide of mercury — and you may bring about resolution ; but their is a great tend- ency to suppuration. When matter is formed open it up, and if the ani- mal is weak give iodine. Inflammation of these glands is often found in cattle, in connection with tuberculosis, and the inflammatory action runs on to suppuration, but not so quickly as in horses. A small amount of matter may become imprisoned and remain there for a long time. It is necessary to use a stronger embrocation on cattle than horses. Let the matter out when formed. I have noticed in cattle that sometimes the surrounding parts are vascular, and it is generally advisable to open care- fully on account of hemorrhage. It is sometirnes best to explore it with an exploring needle, and then enlarge the opening carefully. Induration sometimes takes place, and the best remedy in this and all glandular en- largements is iodine. Iodine one part, iodide of potassium one part, and lard four parts, and give iodide of potassium internally. Steno's Duct.— The duct of this parotid gland winds around the inferior maxillary bone and enters the mouth between the second and third upper molar teeth. This gland secretes during mastica- tion only ; the others secrete whenever food is taken in the mouth. Fistula of this Duct is not uncommon in horses. It sometimes results from injury and sometimes from an abcess in irregular stran- gles, or it may be due to the incautious opening of the abscess, or some obstruction passing into the duct from the inside of the mouth. Symptoms. — There is a discharge of thin watery fluid, which is in- creased during mastication. When the horse is not masticating perhaps the only thing noticed is a small opening on the outside of the jaw, and a slight discharge, but if dry food is given there will be a greatly in- creased discharge. The losing of this saliva interferes with digestion, and colic may be the result. 152 CAU8BS, SYMPTOMS AND TREATMENT OF Treatment. — In a recent case this is sometimes easily overcome, but if of long standing it is more difficult. Paint it with collodian and keep very quiet for several days ; give no solid food, and just enough fluid to sustain life. If a case of longer standing, scarify the edges and then bring them together and secure by means of a pin ; then use stimu- lants, or touch the parts with mild caustics. Some object to caustics, but I have seen them prove of benefit. If the means given fail, then endeavour to make a new duct by inserting a small seaton right into the cheek, and keep it there and stimulate with some stimulant until a new duct is formed. Salivary Calculi. — Any gland that has a well-marked duct may have calcareous deposits, and we find them in the parotid duct — both in horses and cattle. They may obstruct the duct and set up fistula. The flow of saliva is obstructed to a certain extent, but if the duct is suddenly obstructed, then there is dilatation of the walls, which, perhaps, can be felt. The remedy is to cut down and remove the calculi ; secure the wound with a pin ; keep the animal quiet and give no solid food for several days. Ptyalism, or Slavering. — This may proceed from food, and is common in horses and cattle ; it also results from the use of mercury. This shows itself by an immense flov7 of saliva. It may literally run from the mouth, and if it is continued it interferes with digestion. The best remedy is to change the food, and sometimes give a laxative, followed by tonics and stimulants, and use a gargle of alum water. If it is due to mercury, then use mercurial antidotes. DISEASES OF THE STOMACH. The Stomach of a horse is small in proportion to the size of the animal, and digesti<- n takes place quickly, and the horse does not suffer so much from indigestion as ruminants or as man does. A horse can undergo pretty severe exertion after a hearty meal without showing any inconvenience. However, the stomach of a horse is liable to derange- ments, and, perhaps, the most serious is acute indigestion, which destroys a great number of horses, and I think I may safely say that at least three-fourths of the heavy Clyde horses that are imported to this country die from this disease, which is brought about by injudicious feeding or carelessness. It is very common in horses that are worked hard and fed well. It is an accumulation of food and gases in the stomach, and also in the intestines, and a fatal result is inflammation of the mucous membrane, called Gastro-Enteritis. — A horse may be in good health, become affected and die in twenty-four hours or sooner. Causes. — Giving a large amount of food, especially if it is hard to digest ; bran, for example, especially if there is shorts mixed with it and not submitted to the action of hot water for some time. It will produce acute indigestion almost as quickly as any kind of food. If a horse has a full stomach and is put to hard work, digestion does not take place properly, and disease is the result ; or giving a full feed when the stomach is weakened from hard work and as a horse grows old or gets bulky food, the stomach becomes unnaturally dilated, and the walls become very thin, and the gastric juice is not properly secreted ; and after fasting, a DISEASES OF DOMESTIC ANIMALS. 153 horse should not get much food until the secretion of the gastric juice is stimulated by giving a small amount of food. Another common cause is a change of food. "Wheat, even a small amount, will produce it. Clover hay, when the animal is not accustomed to it, is also a common cause. Acute indigestion may terminate in rupture of the stomach, especially in old horses or any that are fed upon poor food. It may not be complete, but just some of the coats are ruptured. Eupture of tbe diaphragm is not uncommon from pressure, and the animal throwing himself about. Symptoms. — We will take a case as we often see it on the farm : The farmer intends to take a journey of fifteen to twenty miles, and the night before he feeds the horse more than usual, gives another large feed in the morning, and starts off. The horse is quite lively, but after going a few miles he becomes dull, sweats, and sweats freely ; is stopped, and shows signs of abdominal pain ; attempts to lie down, turns the head to the side, and if examined, perhaps, slightly swollen in the flank ; gets some better, and is driven again ; again shows symptoms, and perhaps has a slight diarrhoea ; becomes sluggish, but finally reaches his destination, is put in the stable, and soon shows violent symptoms ; lies down and tries to balance himself upon the back, then gets up, turns around, lies down, looks at the flank, the eyes staring, and in many cases the bowels are tympanitic. But I think the stomach may be dilated, even ruptured, without distention of the bowels ; the pulse fifty or sixty beats per minute, and eructations of gas, which is a good sign ; and regurgitation of food, which passes through the nose of the horse and the mouth of the ox, the eructations are extremely sour, the symp- toms become more and more severe; by and by he seems relieved to some* extent; the mouth is clammy; the pulse almost impercep- tible, perhaps a slight diarrhoea ; the rectum bulged out, and death ends the scene ; and this may all take place in from twelve to six- teen hours. Boiled food is also liable to produce this. In other cases the symptoms are not so plain ; perhaps the horse paws ; the pulse forty or forty-five; gases are generated; he appears uneasy, etc., which may develop into the symptoms just given. Some say that regurgitation is symptomatic of rupture, but I think that rupture generally takes place after regurgitation. Treatment must be energetic and persevering, but when gastroenteritis sets in death is the result. There may be rupture of the bowels, as well as rupture of the stomach. There are various remedies recommended, but I give turpentine two ounces, laudanum two ounces, and linseed oil one pint. You may use nitrous or sulphuric ether instead of the turpen- tine, and give injections of soap and water, and even add a little turpen- tine. If there is great pain use hypodermic injections, two, three, four or five grains of the acetate of morphia, and repeat, giving one-half the dose in a half hour or an hour if the pain remains, or you may use the muriate of morphia. As well as this, give six or eight drachms of aloes, and I think it is good practice, to give two or three drachms of the carbo- nate of soda or ammonia in cold water gruel, or in the form of a ball. Use judicious counter-irritation to the bowels, rubbing them well, and use blankets wrung out of hot water placed over the abdomen, and cover up as well as you can, and when relief is obtained to a certain extent, then do not push medicines too far. Instead of using laudanum, you may use belladonna, and it is perhaps preferable in some cases. The horse should be kept so as to prevent him from throwing himself about, for there is danger of rupture. There is benefit in puncturing in all cases 154 CAUSES, SYMPTOMS AND TREATMENT OK where the bowels are distended to a great extent. Puncture in the right or left side, but generally in the right side, and in the most distended part betwt en the iilium and the last rib, and pass the trochar slightly downward. It is best to first make an incision, as the canula will come out easier, and is not so liable to irritate the parts. Do not be too rash in using the trochar, for if gastro-enteritis is present death will result, and the owner would lay the death to the use of the trochar. If you fail to strike the colon you can puncture again, and if a liquid passes instead of a gas, it is unfavourable, but I had such a case to recover. I recom- mend each one of you to get a trochar, and if properly used it will do you credit. There is not much danger in puncturing. There may be an abscess, but it is not very serious, and even peritonitis may supervene, but that is the exception and not the rule. A horse should be carefully used for some time. Acute indigestion may terminate in laminitis. DISEASES OF THE INTESTINE. Rupture of the Stomach is a sequel of acute indigestion. If an animal has suffered from acute indigestion pretty violently for several hours, and becomes quieter, the pulse weaker and weaker, the mucous membranes become pale and blanch, which were reddened a short time previous, and the animal attempts to sit upon the haunches and wist- fully looks at the flanks, the ears cold, etc., the chances are that it is rupture. These are also symptomatic of intus-susception, volvulus, calcu- lus, etc. Kegurgitation is another sign, but I think that it takes place before rupture, for if the e is a considerable rupture the food passes into the abdominal cavity, and I do not think that vomitism can then occur. There is generally spas:iioJie breathing and death in perhaps three or four hours; but I think I have known an animal to live ten or twelve hom:s after rupture occurred. Nothing d^n be done for it. Chronic indigestion, or Dyspepsia. — This is common, and may result from a disorder of the stomach or intestines, derangement of the liver and irritation of or shedding of the teeth, but generally from the stomach, caused by injudicious feeding on over-stimulating food Clover is apt to produce it by causing an over-acidity of the stomach. Symptoms are not very alarming or violent. The horse falls off in con- dition, perspires more freely when at work, the coat appears dry, dusty and staring, the pulse slow and weak, the feces are of a lead or clay colour, or, in some cases, somewhat dark, varying with the food to some extent. The animal is, perhaps, subject to slight attacks of colic, and has a depraved appetite — he will, perhaps, lick the lime from the walls. This is, perhaps, a craving of nature to overcome the acidity of the stomach. Treatment.— Oxdiev a change of food. No matter how he has been fed, order a change, and in most cases give a moderate dose of physic — fro aa five to eight drachms of aloes, and feed carefully for a few days, and in some cases you may combine calomel with the aloes, if there is any derangement of the liver. But I am no great advocate of the use of calomel ; also, use anti acids, carbonate of soda and ginger in a ball, or drench with water, or in the food, if the animal will eat it. If there is weakness, give beer with one and a-half drachms of gentian or ginger, and after a week or two give tonics. But I think harm is sometimes done by giving tonics before the system is prepared for them. Give sul- phate of iion, or even a little arsenic with it, or give sulphate of quinine. Perhaps the great secret in treating this disease is a change of diet. DISEASES OP DOMESTIC ANIMALS. 155 Spasmodic Colic is a spasmodic contraction of the muscular fibres of the intestines. The contraction of this muscular coat tends to pass the contents toward the anus. Although spasmodic colic may be said to be contraction of the muscular coat of the small intestines, I think it may also affect the large intestines. In an ordinary case there is no great amount of the intestine contracted, perhaps a few inches to a foot or more, and if it continues, intus-susception may take place, or the mucous linings may adhere together, from being pressed together so close by the contractions of the muscular fibres. Causes. — Perhaps the principal cause is a change of food. Giving cold water when the animal is heated may cause it, but not very often. Roots, especially if frozen, and sometimes if in a proper con- dition, may cause it. Some horses are particularly susceptible to colic. Sudden changes of temperature tends to produce it, and also constipation of the bowels, which sometimes supervenes a cathartic ; and when giving a purgative, it is best to continue it with gentian, gin- ger, etc. Although spasmodic colic is very painful it is not very fatal, and is usually of short duration. It generally terminates favourably, and it may terminate in enteritis, although some think it never does. Symptoms. — The attack is very sudden ; the animal begins to paw and cringe ; looks at the sides, throws himself violently upon the ground, after perhaps cringing down some. He lies down rather easily in enteri- tis. In colic, he attempts to lie upon the back — will perhaps roll back upon the side, get up, and he may be quiet for a while, and may even take a little food, and then again be seized and show similar symptoms. In some cases he may be covered with profuse persi^iration, and may pass feces in small quantities, and there are frequent endeavours to urinate, which tends to mislead some who do not understand the disease. It is generally a good symptom to see^him urinate. You will also be guided by the condition of the circulation. Take the pulse early in colic, during the violent symptoms, and it perhaps will be sixty, and if taken a few minutes after, when the horse is standing still, it may be only forty or forty-five in a minute In enteritis the pulse begins about forty or forty- five and gradually increases, is full and bounding and continues ; but the pulse varies in different attacks of colic. If it attacks a horse after a hard drive, or one in a debilitated condition, the pulse will be weak, and per- haps fast, but still differs from the full bounding pulse of enteritis. In colic, pressing upon the abdomen appears to afford relief, and causes pain in enteritis. In a case of colic likely to terminate fatally, the symptoms become more violent, and death may occur from extreme muscular con- traction, or from terminating in enteritis, and it may so terminate. It is of short duration in some cases — the animal is as well as ever apparently — in other cases it may last ten or twelve hours or more ; but such cases are not very violent, generally, for the horse could not last so long under such severe pain. It is usually easily diagnosed, but you may meet_ a case that will give you some trouble to tell whether it is colic or enteritis Treatment is generally satisfactory, and a student, when asked what he would do if sent for in such a case, said he would "go just as fast as he could, or the horse might be well before he got there," and it does not matter so much what remedy is given, if it is given in time. Bleeding was at one time regarded as the sheet anchor in treating colic, and some- times it is good and acts like an anti-spasmodic, but I do not recommend it Every practitioner has his favourite remedy, and I give sweet spirits of nitre, one to two ounces, extract of belladonna one to two drachms, in solution, with two ounces of water. Or sweet spirits of nitre one to two 156 CAUSES, SYMPTOMS AND TREATMENT OF ounces, and laudanum one to two ounces, in six or eight ounces of water, : and give injections, and a little turpentine may be added to the injections. \ Some recommend always treating with a large dose of purgative medi- . cine, but I can not agree with them : but, in any case where the bowels j are overloaded, give six to eight drachms of aloes, after giving anti- j spasmodics. And there is another way of treating this : that is by hj'po- derraic injections of the acetate of morphia — but you must be careful not ; to inject it into a blood vessel— and if it does not act just as you desire, do not be too hasty in giving another, or it may act more powerfully than i you desire. Chloral hydrate is recommended I have tried it, but have i been more successful with what I have recommended. Turpentine, lau- I danum and oil was Prof. Dick's favourite remedy. If you give a dose and : there is no relief, repeat the dose in a half hour, and if you think there ■ are symptoms of enteritis, withhold the stimulants. I have used opium, | but I now prefer hypodermic injections. If you have no remedy at hand, ; then give ale, beer, whiskey, etc., and common salt may, perhaps, expel • the attack. Put the horse in a comfortable place, and let him roll about ', as much as he pleases, and a little exercise may be of use, but any great ; amount will do harm. I think it is better to keep him in a comfortable '■ box or yard. Kub the belly well, use judicious counter-irritation, hot water, mustard, etc. If a horse suffers repeated attacks, the bowels be- \ come weakened, and sooner or later it will terminate fatally. Flatulent Colic— It is hard in some cases to tell the difference between ; this and acute indigestion, but the bowels may be flatulent and the j stomach not be affected. It consists of gases ; there are carbonic acid ' gas, sulphuretted hydrogen, and in some cases carburetted hydrogen. . Flatulent colic is more common in old than in young horses— perhaps ; because digestion is impaired to some extent— and in horses that bave ; been fed for a long time on over-stimuhtting food. Causes. — A change of food or feeding soon after a long drive. Indian : corn, or inferior food of any kind, is likely to produce it. j Symptoms are similar to spasmodic colic ; the animal lies down and i rolls, etc., and the abdomen soon becomes distended, and in a pure case ■ there is no regurgitation of food nor eructations of gases, but just dis- | tention of the bowels, and one part of the colon may be affected more j than the others 1 Treatment — Give injections freely, and you may be able to overcome a ; slight attack by injection, but medicines may be necessary. You may j put one or one-and-a-half ounces of turpentine in the injections ; this ! may relieve it, although the intestines are pretty full of food, but may i have to remove the contents of the rectum with the hand. Chemically j speaking, the best remedies would be lime, ammonia, etc., which would i combine with the gases and form new compounds, and so afford relief ; \ but they do not act internally in all cases ; but give turpentine one or j two ounces, with linseed oil and laudanum or belladonna, according to ; the suffering ; or you may relieve the pain by giving two or three grains j of the acetate of moi-phia, hypodermically ; and it is good practice in ] some cases to give a purgative and carbonate of ammonia, one, two or three drachms, in the form of a ball, or rubbed down in a little cold water or gruel with some mucilage, and give as a drench. You must be careful in giving aqua ammonia, or it will cause great irritation. The horse requires great care, and you will find carminatives, stomachics, etc , useful ; and see that he gets good, nutritious food, and internal j remedies have but little or no effect, then puncture; and I believe ■ puncturing is more successful in a pure case of flatulent colic than in j DISEASES OF DOMESTIC ANlMXLt. 157 any other disease. Flatulent colic may terminate in enteritis, but it is more likely to terminate in rupture, or it may terminate in death by asphyxia. It is good in some cases to prevent the animal from throwing himself too violently, and I only recommend puncturing when the ani- mal is considerably inflated. If he is not inflated you may injure the coats of the colon or ccecum. Enteritis is perhaps more common in the horse than in any other animal, and also more fatal. It is inflammation of the intestines, and inflammation used without any particular application is a very vague term. The coats of the intestines are three — a mucous, a muscular and serous ; and enteritis, in most cases, is inflammation of the mucous coat, but in many cases all the coats are involved. Some writers say it is con- fined to the muscular coat without the mucous coat being affected. But in some cases, as soon as you cut into the abdomen you can see a great change has taken place, both in the muscular and serous coats ; and in other cases you can only notice a slightl}' reddened condition until you have cut through the muscular coat, and then the mucous coat is found to be aftected. It is a very painful and alarming disease, which will run its course quickly, causing death in six or eight hours, and does not often linger more than from ten to twenty hours. It attacks the large oftener than the small intestines, but if it supervenes acute indigestion it may involve almost the whole of the intestines, and in other cases only a part or the whole of the colon. Causes. — Colic occasionally produces it, although some writers say it does not. It arises from an over- accumulation of feces in the intestines, or eating some food to which the animal is not accustomed— some hard body, clay, anything that would irritate the intestines. Pea straw is a common cause in some places. It may also cause colic. Purgatives in- cautiously administered in certain diseases may cause enteritis, and when croton oil was combined with almost every purgative enteritis was more common. And I may just say that the less you use croton oil in practice the better. In other cases it comes from drinking stagnant, putrid water. I think this is a common cause in some places. Exposure to the cold, especially after a long and exhausting drive, and then standing in the cold ; or it may come from calculi intussusception, volvulus, etc., and may supervene certain diseases, as strangles, pneumonia, etc., from a weakened condition of the system. Symptoms. — Somewhat similar to colic and other painful bowel troubles, but in some cases it is preceded by dullness, especially if it is the result of faulty feeding. The first symptom often noticed is, pawing, first with one foot and then with the other foot, and he may do this for an hour or an hour and a half ; he may turn the head to the side, then cringe some, and again look at the side. This is also symptomatic of colic, but if it continues for an hour or two, and then lies down, it is symptomatic of enteritis : by and by the pain becomes more violent. Early in the disease the pulse is not much disturbed, but is slightly accelerated — perhaps forty, forty-two, or even forty-five per minute ; and it is at the same time full and bounding ; the mouth hotter than natural ; the ears and legs hotter than usual, etc., it is symptomatic of enteritis, and sometimes rigours is the beginning of the disease ; the coat is staring, the same as in congestion of the lungs, but the breathing is not so quick ; the pain increases ; he begins to move the limbs, cringes and lies down more carefully than in colie ; tries to balance upon the back ; gets upon his feet, and instead of standing still, as in spasmodic colic, he turns around, goes around two or three times, cringes and lies down. But if 158 CAUSES, SYMPTOMS AND TREATMENT OF it is spasmodic colic, he will likely stand still for half a minute or more, and the pain is almost (but not absolutely) continuous in enteritis. The eye has a peculiar lustre, becomes reddened and injected, and the same is true of the mucous membranes ; the ears and legs may now be cold, or hot and cold alternately ; and costiveness is another symptom. Although there may have been slight diarrhcea in the first stage, and although you could move the bowels, it would not relieve the difficulty, as is sometimes supposed. There may be some hard feces passed, which may be covered with mucous, and attempts are made to urinate frequently, and some urine- may be passed. In the early stage the belly is somewhat tucked up, and pressure upon it increases the pain, while in colic it relieves it, and after a time there is perspiration about the flank, behind the ears and shoulders, and a peculiar breathing, and if an animal has suffered some time from abdominal pain, and there is this peculiar breathing, it is a dark case, and the symptoms increase in violence, the pulse runs up to eighty per minute, loses its bounding character and becomes weak, then you may make up your mind that a considerable amount of exuda- tion has taken place, and a well marked symptom at this time is the amaurotic expression of the eye, and as it advances the animal becomes almost blind and almost unconscious, and if you lift the head, the ani- mal may fall back. This is caused by a lack of blood to the head, and you must approach him wuth caution. These symptoms may have been going on for from six to fifteen hours, when all at once the animal may become quiet, perhaps take some food, but does not masticate it ; the perspiration continues, the extremities are deathly cold, the mouth clammy, which shows that gangrene has taken place, and the animal may live two or even ten hours, but generally dies in an hour or hour and a half, according to the intestine affected. Treatment is not successful, but we sometimes meet with a case that may be treated with success, and opium is the great sheet-anchor, so to speak, of treating it. I recommend giving large doses of opium — a drachm dose of the powder every hour or two until tour or six doses have been given ; or, give two or three grains of the acetate of morphia hj'po- dermically, repeated in half the dose in an hour or a half hour, if neces- sary ; and it may be necessary to give injections, and I think there is benefit in counter-irritation ; use ammonia of water — I believe hot water is the best. You may give Flemming's tincture of aconite in ten or fifteen drop doses, and you can give larger doses in enteritis than in any other disease. Blood-letting is another remedy, and I believe in some cases is of benefit, but it must be done in the early stage of the disease, and in a horse of good condition ; but if the inflammatory action has poured out an exudation, then any such things should be care- fully used, and use gentle stimulants with sweet spirits of nitre, opium, ale, beer, whisky, etc ; and although the bowels do not move, you need not be alarmed, but in some cases of constipation, which is setting up irritation, a purgative may be given, which may remove the constipation and relieve the irritation, and, in connection with the purgative, nux vomica may be added. There is another method of treatment, which I do not say is successful ; it is to put the animal under the influence of chloroform, or hypodermic injections, keeping him under its influence for perhaps an hour, and I think it is worthy of trial. Re sure and keep the animal warm, well clothed, and rub well, to equalize the circulation ; and when treating a case, and have given two or three doses of opium or hypodermic injections, the animal holds the head up some, then cover and keep him warm, but do not push medicine too far. It is as neces- sary to know when to quit giving medicine as to know when to give it. DISEASES OF DOMESTIC ANIMALS. 159 Volvulus is also occasionally noticed. It is the bowels becoming twisted ; or it may be due to colic, or a small portion of the intestines may pass through a small rupture in the mesentery, interfering with the passage of the contents. It is more likely to occur in young animals, but it may occur in adult. It is almost impossible to diagnose it cor- rectly, but the Symptoms are similar to those of enteritis, but are more prolonged ; the pain is continuous ; there is obstinate constipation ; the pulse be- comes quicker and quicker ; he throws himself about ; you perhaps administer opium without any lasting effect ; he sits upon his haunches ; the pulse runs high and becomes almost imperceptible ; sweat covers the body, and if you are certain of volvulus, it is best to destroy the animal. Intus-SUSCeption is a slipping of one part ( f intestine inside another. It is rare in the horse. But a young horse is more liable, and it is often- est found in the small intestines, and sometimes a great length may become invaginated. Causes. — It is hard to say just what does cause it. Violent contrac- tions of the intestines during the severe paroxysms of colic may produce it. Foals feeding upon milk are more subject to it. If it occurs in colic each paroxysm slips it further, and death generally results, but cases are recorded where a considerable amount of intestine has sloughed off, and the case recovered, both in horses and cattle. Little can be done for it ; however, some recommend cutting into the abdomen, find and endeavor to straighten out the parts, but this is not likely to meet with success, and if there is intus-susception with strangulation it is generally best to destroy the animal, but is possible for it to slough off and the animal recover. Symptoms are common to this : volvulus, gorged stomach, etc. Compression, or Stricture of the Intestines, may be due to tumours, which grow to a great extent and cause stricture, or you may have a tumour internally, which may produce either stricture or volvu- lus, and opiates will not relieve it. The pulse becomes weaker and weaker, the animal sits upon his haunches, then lies down and stretches his head out, gets up and lies down, etc., and the symptoms remain for twenty-four hours or longer. It is generally not enteritis, because the animal would not live so long in acute enteritis. Strangulation may proceed from a pedunculated or ovarian tumour. Intestinal Concretions are enlargements or balls in the intestines. They sometimes consist principally of, lime or some other alkaline sub- stances. They vary in size from that of a marble to the weight of twenty pounds. A small piece of almost- anything may form a nucleus around which these substances may be deposited. In the specimen here a small piece of brass wire formed the nucleus. They have been called dust balls in England, because the horses were fed from the sweepings of the mill floors, and so got something to form a nucleus for the deposit. Semi-digested food sometimes forms a ball, and it takes sometimes, per- haps, years for it to accumulate to any great size, but sooner or later it will obstruct the passages of the feces, and cause death. There are also hair balls, which are composed of hair. Sheep sometimes have balls composed of wool ; they may exist some time before they interfere with the animals. I believe that the animals in which they are present are attacked with what is supposed to be colic, which may be due to the obstruction, and the enlargement may move and the symptoms subside. These enlargements are oftener lodged in the colon than any other part 160 CAtSES, SYMPTOMS AND TREATMENT OF of the intestine. When they obstruct the passage there is obstinate con- stipation, the pulse forty or fifty-two ; by and by the symptoms become similar to enteritis, but are more prolonged ; he sits upon the haunches ; the last is symptomatic of volvulus, intus-susception, gorged stomach, calculus, concretions, etc , and if a horse has been suffering acute pain for several hours, and has the above symptoms, cold sweats, etc., it may be any of the diseases spoken of. Treatment.— U the pain is violent endeavour to relieve it with opinm, and it is good practice to examine the rectum by introducing your hand carefully, and you may find some hard body, or it may be from obstinate constipation. It is generally from twenty-four to thirty-six hours before death takes place after the bowels are completely obstructed. Constipation. — In many cases this cannot be said to be a disease of itself, but a symptom of some other disease, but is sometimes a disease of itself, and may proceed from various causes ; from intestinal concre- tions ; an undue amount of feces in the intestines ; from too rapid or from too great absorption of the fluids, and from liver disorders ; and when the animal suffers from any fever there is constipation ; also in- ferior food of any kind ; a large amount of oats and a small amount of hay ; and pea and barley straw, etc. The muscular fibres of the colon and rectum become paralyzed to a certain extent, and are not able to expel the feces. Feeding over-ripe grass causes indigestion, and is liable to affect the brain in many cases, but roots are more liable to produce acute indigestion, flatulence, etc , than obstinate constipation. Symptoms. — If it is a pure case there is scarcely any feces passed, the animal is dull and sluggish, slightly tympanitic in some cases, and shows more or less abdominal pain, but not much ; lies down, rolls, looks at the sides ; the pulse not much changed, perhaps forty or fifty; and by examination you may find the rectum completely impacted, and it may be necessary to remove the contents every day for some time. Treatment. — If the bowels are obstinately constipated give a dose of purgative medicine, and it is good practice to combine with stimulants ; give six, eight or nine drachms of aloes, or one drachm of calomel, once, twice or three times a day, or nux vomica, and give injections, and, if necessary, remove the contents of the rectum with the hand. Use an infusion of tobacco— one ounce of tobacco, cut up, and pour boiling water over it, and strain it through a cloth, then add a little soap and lard, and inject, which will cause relaxation of the bowels ; if there is pain give an opiate, or hypodermic injections ; I would prefer the latter. Or, instead of tobacco, use turpentine in water for injections, one-half ounce to one ounce. You may cause irritation by using too much soap in injections. If 3'ou make up your mind that it is a pure case of constipation, never hesitate in giving a dose of aloes, and follow by a diffusible or nervous stimulant. There might be an exceptional case, where you might have recourse to croton oil, and if so, put two or three drops inside a ball, and give it carefully, and do not let the animal chew it. Habitual Costiveness, where there is slight constipation, is best treated by regulating the food, or by any mild remedy, such as carbonate of soda, but if it is due to some disease of some organ, as the liver, then you may have recourse to potassium. Purgatives may relieve for a time, but it will return ; however, in some cases you may give a slight laxative, linseed oil, castor oil or sweet oil. Diarrhoea consists in the undue passage of liquid feces, due to a slight congested state of the alimentary canal. It is most frequently seen in horses of a weak conformation, as a narrow chest and loins. DISEASES OF DOMESTIC ANIMALS. 161 Causes. — Giving rich, succulent food after having been fed on a stimu- lant diet for some time, and such a case may benefit instead of injuring the animal. Turnips, carrots, etc, especially if frozen slightly, are apt to produce it ; also impure and stagnant water which act as a blood poi- son ; or some irritant in the food, as sand, clay, etc.; or it may result from excitement, in race and hunting horses ; or it may be the result of an over-dose of purgative medicine, or of the incautious administration of a moderate dose, and when it is so caused it is called super-purgation. Diarrhoea is not very fatal ; it is often an effort of nature to relive some disease, as in a poison in the blood the readiest way to get rid of it is by way of the bowels If it results from pneumonia, influenza, strangles, impure or stagnant water, then it becomes serious. It is easil,> detected ; the animal passes a large amount of feces, which are of a liquid nature ; at first the pulse is but little affected, but after a day or two it becomes weak and slightly increased — if it continues longer the pulse increases ; the ears and legs are colder than natural. There are slight griping pains in some cases, due to slight irritation, or perhaps to slight spasms of the intestines ; these pains may increase and result in enteritis, especially if it is caused by super-purgation. Treatment. — In many cases all you have to do is to change the food, and clothe the body according to the temperature ; and it may be neces- sary to give a little medicine. Endeavour to find the cause, and if it is due to some irritation of the intestines, an astringent would do more harm than good ; but cause the removal of such irritant by giving a lax- ative, combined with opium, a pint of linseed oil and a half ounce of laudanum : or two drachms of aloes, with an equal amount of gentian ginger, or an anti-acid ; but if not due to an irritant, you may give an astringent ; also, cover the animal, stimulate the legs, and sometimes the abdomen. But if diarrhoea has continued some time, it is necessary to stop it.* Give catechu, half ounce to one ounce; gentian, two drachms; ginger, two drachms, and repeat it in from twelve to eighteen hours ; or, oil of turpentine, one ounce ; opium, one drachm, with two or three eggs; or you may be able in some cases to check it with flour, but you must be careful in super-purgation, and it is best to give one drachm of opium and then give tepid water, which tends to soothe and restore the intes- tines to their natural condition. Do not resort to too powerful remedies at first, I treated one case in which I detected sand in the feces, and gave a laxative, and I think there was almost a bucketful of sand passed during twenty-four hours. You must get rid of any irritants, and if necessary give stimulants — good port wine and brandy, if the animal is depressed or takes no food. Diarrhoea, in young animals, is sometimes difficult, and sometimes results from a foal being exposed to the cold, or an improper condition of the milk of the mother ; either too rich or too poor will produce it. Symptoms. — An undue amount of liquid feces ; the animal weakly and sickly ; the coat staring, and perhaps a sort of curdled fiuid passes with the feces ; and it is necessary to be extremely careful in giving laxatives. You may give one to two ounces of castor oil with a little rhubarb, and endeavour to regulate the condition of the milk, if it is too rich, by giving a moderate amount of food, diuretics, or even laxatives. If the milk is poor, improve by giving a nutritious diet. In working the mare, the udder becomes full, and perhaps over-heated, and if the foal is allowed to take the milk while in this condition, results in diarrhoea. Give a slight ♦ Flndley Dume gives the dose one to three drachms of catechu. 162 CAUSES, SYMPTOMS AND TREATMENT OF laxative, and if you are not able to check it in this way, give a scruple of powdered opium, half drachm to one drachm rhubarb, half drachm to two drachms of prepared chalk, and attend to the condition of the mother ; and use judicious counter-irritation, by rubbing and stimulating the belly with mustard or camphorated liniment. Dysentery, or Flux. — This is an affection of the mucous membrane, especially of' the large intestines, and there is a great tendency to ulcera- tion, and when it takes place there is more or less hemorrhage. Causes. — It may proceed from a severe attack of diarrhoea, or froai grazing upon wet. marshy lands, or feeding upon grasses grown upon such lands ; using impure water, etc. In cattle it is generally associated with tubercular disease Horses do not often have it, except from some well marked cause. Symptoms. — The evacuations are tinged with blood, and have an ex- tremely fetid odour, which differs from an ' ordinary case of diarrhcea ; the feces are often mixed with shreds of mucous membrane ; the appetite impaired or entirely gone ; the pulse perhaps fifty per minute, and weak ; there are colicky or griping pains, which, after ulceration, are not so severe ; the rectum is also usually in an irritable state. Treatment is not satisfactory in many cases, but give a slight laxative — castor oil and linseed oil and laudanum, and then small doses of chalk and opium once or twice a day, and demulcent drinks, as hay or linseed tea, flour, gruel, etc., which will support the system and soothe the irritation of the bowels ; or, you may try catechu, and after the dis- charge is arrested, then give tonics — iron will do very well — acetate of lead, one to two scruples, once or twice a day, has been recommended by some in controlling the disease. If the animal becomes very weak, sup- port him by stimulants. In cattle the treatment is similar, but is not satisfactory, because it is generally associated with tubercular disease. There is one thing recommended by some having considerable experience ; it is opium, one drachm ; chalk, one ounce ; calomel, ten grains. Rupture, or Hernia, is the protrusion of an organ, or part of an organ, from its natural cavity. I will direct your attention to abdominal hernia, which is a protrusion of some of the intestines out of the abdom- inal cavity, either through a natural or an artificial opening. It gets distinctive names from the parts through which they protrude. If they protrude through the inguinal canal, it is inguinal hernia. If it extends down into the scrotum, is scrotal hernia ; if through the umbilicus, it is umbilical hernia ; if through an artificial opening, it is called ventral hernia ; if the diaphragm, it is diaphragmatic hernia, etc. Again, if you are able to return the parts easily, without any violent means, it is called reducible ; if it cannot be so returned, it is called irreducible, and if it becomes constricted at the neck and interferes with the circulation, it is called strangulated. Scrotal hernia is more liable to occur in a stallion, and any part of the intestines may pass through, but it is gen- erally the small. Causes. — In many cases it is congenital ; violent exertion may produce it. Inguinal may become scrotal in a stallion, from covering mares, leaping, running, or any violent exertion, and sometimes when thrown for an operation, by struggling. I will first speak of inguinal hernia, which may be easily overlooked, and so long as it does not become strangulated you may not be able to detect it at all. When it becomes strangulated the symptoms are just the same as colic, but are more pro- longed ; the pulse becomes quick ; he sits upon the haunches, rolls and DISEASES OF DOMESTIC ANIMALS. 163 tries to lie upon the back ; the pulse becomes quicker and quicker, and if you have a case where such symptoms are prolonged, it is good practice to look for hernia. Treatment. — So long as inguinal hernia does not interfere with the animal, it is just as well to let it alone, but if it becomes strangulated, you may be able to reduce it by manipulating the parts, or you may have to perform by throwing the animal and elevating the hind quarters, extending the limbs to a certain extent, and insert the hand into the rectum, and by traction upon the bowels, and manipulation externally you may be able to reduce it. This operation is called the taxis. If this does not succeed, then cut down upon the hernia as close to the ring as possible, then make an incision into the hernial sack, and then reduce it and keep the animal quiet, and if you are able to return it in proper time the irritation will soon disapjDear. Scrotal Hernia is easily detected. When the hernia is composed of intestines, it is called interocele ; if it consists of the omentum, it is called epiplocele. The omentum usually does little harm. If it is the intes- tines, they are apt to be distended with gas, and it will give way to pressure ; if it is omentum, it is some harder, and does not give way as if it were gas, and may be mistaken for scirrhouscord or hydrocele, or a varicose condition of some of the veins. If there is no ii-ritation, the animal does not suffer much. If the bowels are full, the feces pass down and enlarge the hernia to some extent, and it is smaller when the animal has been fasting. Cold contracts the tissues and so lessens the hernia ; heat relaxes and enlarges it. It may be as small as two or three fingers, or as large as a man's hand, or even extend more than half way down to the hock. Treatment. — If you are consulted about a valuable stallion, six, eight or nine years old, it is generally best to leave such a case alone, unless there are signs of irritation. "Let sleeping dogs lie." It may exist for years and do no harm, if the animal has good care and proper food ; but if it attains considerable size in a horse not used for covering purposes, then treat it. Hernia in colts, extending down two or three inches, can usually be easily returned, but if such a case does not interfere with the animal, it is best to let it alone for a time, and it will often disappear of its own accord ; but if it does not disappear, then it is necessary to operate. Suppose it is a colt, one year old, with a large hernia, then it is not advisable to cut into the hernial sac, but the best way is that recommended by Prof. Williams. Having the colt prepared by feeding sparingly for a few days, then return the intestine into its place, take up the testicle and scrotum, and place a clam right over the scrotum and testicle, as close to the ring as possible, and allow the parts to slough off. The covered operation is performed by cutting in and ex- posing the testicle, still covered by the tunica vaginalis, make a small incision into the sac, then divide the stricture, replace the intestine and apply a clam over the scrotum, cord, etc., and allow sloughing to take place. I treated one case where the hernia extended two-thirds of the way to the hock. I first prepared him by feeding sparingfy for a few days — gave oats without much hay— then threw the horse and tried to reduce the hernia before attempting to operate, and finding I could reduce it, 1 decided to operate by returning the bowels and applying a large clam as close to the ring as possible. The next day the pulse was about fifty per minute ; was reduced some the day following this, and in a short time the parts sloughed off, and a recovery was the result, and I do not think this could have been successful by the covered method. Some- 164 CAUSES, SYMPTOMS AND TREATMENT OF times it is necessary to operate on a colt without castrating him, and a truss may be used, and it may subdue the hernia. However, there is one method I have resorted to in such cases, which I have not seen recom- mended particularly in our works. I returned the whole mass of bowel up the scrotum, and put a few stitches through the scrotum, and left them for four or five days. A little irritation was set up, and the hernia disappeared. I was careful not to injure the testicle, which I had closed up to the ring. Some recommend applying a clam below the testicle, which sloughs off a piece of the scrotum. Umbilical Hernia. — This may occur in any animal, but is more likely to occur in young animals, and is often congenital. . If not present at birth, it is noticed in a few days after birth. It is generally reducible with a little pressure. If in a colt from six to fourteen days old, it is just as well to let it alone for a while, and it will often disappear, for the omentum does not grow as fast accordingly as the other parts of the body, which tends to reduce it. But if the colt is one or two years old, then it will not disappear of itself, and it is necessary to reduce it, and there are various ways, as by a truss, or a bandage is applied, and it is more easily applied than in scrotul hernia. In other cases you must operate by some of the methods ; by cutting through the skin ; expose and scarify the abdominal walls, and bring the parts together. This would be perhaps the most surgical way, but we can operate in a more simple way, and I recommend throwing him. Eeturn the bowel, take up the skin and apply the clam right over it, taking care not to apply them too tightly, and to stop the circulation too quickly ; or, you can use skewers instead of clams; put two or three skewers through the parts, and take good strong twine and secure the parts by passing the twine over them in the form of a figure eight, or by puckering up the skin and apply- ing a ligature round it ; and a skewer is of benefit in this case to prevent the ligature from slipping off. In twenty-four or thirty hours it is neces- sary to apply another ligature, and tighten the parts up some, and you may subdue the hernia. And perhaps in eight or ten days tetanus will set in and death result, and this may occur after any operation, and peritonitis supervene ; but there is not generally much danger of peri- tonitis. Ventral Hernia. — It may vary from the size of a marble to the size of your head. It generally results from direct injury, as a kick, etc., and sometimes from abdominal contraction ; but it does not often occur in this way, and it is well, in examining horses, to look along the belly for enlargements. It is fluctuating tumour, and when produced by injury, it may be due to extensive inflammation set up in the part, giving rise to an exudation, and matter may form and you will have to open it up ; and there may be a hernia as well as an abscess, and when opening an abscess in this region, always think of hernia, and be very careful. The same thing applies to cattle, and you may have difficulty, in making up your mind what is hernia or an abscess, or both together. One of our gradu- ates opened an abscess in this region ; it formed again, and he plunged the lancet into it, and there was a hernia present, and it was necessary to destroy the animal. They may attain a great size and not interfere with the animal ; and it may be a point of dispute whether it should or should not be operated upon ; and unless the owner desires it, it is better to let it alone. Treatment. — Prepare the animal by moderate feeding for a day or two, then throw the animal and return the hernia ; cut into the sac and bring the edges together by a catgut suture. There is no great danger in a DISEASES OF DOMESTIC ANIMALS. 165 small hernia, if the animal is prepared for it, and it may be necessary to put him under the influence of chloroform. Operate just the same as in umbilical hernia, and use skewers to prevent its slipping ; or you can operate by skewers, or even a blister, in some cases, may reduce it. You may also use the ligature, or operate by cutting into the hernial sac and scarifying the walls, and secure the edges by means of a carbolized catgut, and then bring the skin together. I think this is preferable to the metal- lic suture. Biaphraprmatic Hernia. — This is rare, and sooner or later proves fatal. It may either pass through a natural or an artificial opening. It is apt to enlarge aijd soon produce death. It may proceed from various causes —from violent exertion of any kind, and sometimes from colic. It is difficult to diagnose, but there are Symptoms that might lead you to suspect it. I will give you the history of one case I attended. He showed symptoms of inflammation of the bowels. I learned that during the previous night he had suddenly be- come ill. and continued so during the night. In the morning the pulse was quick, full and bounding ; sweats covered the body ; he would lie down and get up ; the respirations were greatly increased, and he ap- peared to be suffering from inflammation of the lungs. This continued more or less during the most of the day, and the usual remedies for enter- itis were used without success. Later in the day he became quiet, the pulse was scarcely perceptible, the mouth cold and clammy, the mucous membranes became pale, and there was laboured breathing ; he again had pain, and again became quiet, fell and expired. A post mortem revealed more than thirty feet of the small intestines in the thoracic cavity. I believe the cause was colic. Nothing can be done for it. Rupture of the Colon, either in acute indigestion or flatulent colic, giving rise to symptoms similar to rupture of the stomach — the nose pale, mouth clammy, etc. Rnptnre of the Rectum may occur, and recovery may take place^ It is not uncommon, but is rather a serious injury. It may be caused in various ways— by a foreign body passing in, or mal-address in serving mares. If it is confined to the superior walls, especially if posterior to the peritoneal covering, a cure may be effected ; but if anterior, through the peritoneal covering, and in the inferior part, death generally results. Make a careful examination, insert the hand carefully into the rectum and remove the contents, which is better than giving an injection, in this case, and endeavour to find the extent of the injury ; and you might endeavour to bring the parts together, but it is difficult to do. Keep the patient extremely quiet and feed very sparingly. You may sponge the parts nicely, and you may give a slight laxative of oil. If there is pain, give hypodermic injections or powdered opium, and give tincture of aconite. Tumours and Abscesses in the Rectum.— A constipated state of the bowels may so irritate the parts as to cause an abscess Rudely insert- ing the hand, or the incautious use of the injecting pipe, may cause it, especially in a violent case of the colic ; or you might even rupture the rectum in this way. An abscess gives rise to great pain. After defaca- tion he may cringe down, and even lie down and roll. Examine such cases, and you may find an abscess or tumour ; if an abscess open it, and then carefully inject with astringents and disinfectants to a certain extent. Regulate the diet, and give opium if the pain continues. Ulcera- tion of the walls of the rectum is more liable to occur in old animals ; nothing can be done for it ; as a general thing it is of considerable 166 CAUSES, SYMPTOMS AND TREATMENT OF extent, and may be eaten through the walls. If it is but slight, treat with carbolic acid, and attend to the general health of the animal ; give tonics, good food, etc. Tumours in the rectum may interfere with the passage of the feces. Endeavour to remove them, either with the knife or ecraseur. Protrusion of the Rectum is often met with in all animals, and it looks very formidable, especially to a casual observer, and if it continues for some time it swells and becomes inflamed, and may attain a consider- able size. It is caused in various vyays, and is symptomatic of acute indigestion. In other cases it is due to a slight injury to tlie rectum — from inserting the hand violently. It is also brought about by exposure to cold ; by irritating clysters, using too much soap, or even by giving clysters too frequently ; from diarrhoea or constipation, and in some cases debility ; or the animal standing with the fore parts higher than the hind parts. In the dog it may be produced by aloes. The most common cause, perhaps, is constipation. It requires a little tact and perseverence to reduce it. Endeavonr to find how long it has been pro- truded. Bathe with tepid water to remove any dirt, scarify in one or two places, being careful not to cut too deeply, then bathe with tepid water and laudanum, and if it is from constipation it may be necessary to remove the contents of the rectum, by giving an injection and allowing it to escape, then bathe well and return it, and you may meet a case where you will have to return it every day perhaps for a week or ten days, and if due to constipation it is sometimes necessary to give a purgative to get the bowels in a natural condition, then elevate the hind quarters to a certain extent. Sometimes a portion may become gangren- ous, when you will have to remove the gangrenous part, and recovery may still take place. It has been recommended to place a truss to the parts, but it is difficult to do. Imperforate Anus, in which the skin covers the anus ; and this con- dition may extend in for a considerable distance. Make two incisions, one across the other, but if the anus is not developed properly, death will soon result. Peritonitis, — The abdominal cavity is covered with a serous mem- brane, reflections of which cover the various organs. Inflammation of this is called peritonitis, and is rather a serious affair, and is apt to lead to serious results. This and enteritis may both occur at once. However, it may exist independent of enteritis. Causes. — Exposure to cold ; food is not likely to produce it ; exposure after some debilitating disease. It often supervenes enteritis, and is often a sequel or a result of castration, especially if not properly per- formed ; from a change of weather, etc. Symptoms are somewhat deceptive, and it may go on to some extent, especially if it is due to an injury, and be overlooked. There is not the same pain as in enteritis ; the pulse is perhaps seventy or eighty, and wiry, the breathing affected to some extent, and you are apt to think the horse is suffering from irritation of the lungs ; pressure causes pain, and in many cases, no difference what causes it, a post mortem will reveal a great amount of effusion into the peritoneal cavity. The symptoms sometimes come on gradually. At first he is dull, will not move unless forced to, refuses food ; pulse seventy or eighty, and wiry ; the breathing quickened some, and he will look at the sides, etc. It is apt to extend over a large surface, and may involve the whole peritoneum. When it comes from castration, suppuration does not take place in connection DISEASES OF DOMESTIC ANIMALS. 167 with castration, and instead of healthy, we have a small amount of ichorous pus discharged. Treatment. — Hypodermic injections, opiates and a little oil if the bowels are constipated, and judicious counter irritation, and after partial recovery use iodide of potassium. Ascites, or Dropsy, is the result of peritonitis. An effusion takes place from an inflammation of a serous membrane, and if it goes on to such an extent that it can not be absorbed, it produces dropsy. Dropsy is the result of chronic peritonitis, or from chronic disease of any of the organs — as the liver, lungs, heart, kidneys, urinary, calculi, albuminuria, or degeneration of the kidneys, etc. Symptoms — The animal is weak ; the pulse quick, and very weak in some cases ; the appetite may be retained tolerably well ; the muscular system becomes soft and flabby ; the belly distended, and when you press upon it you can see it is the result of a fluid ; as well as being weak, th e pulse is irregular ; there is, perhaps, a slight diarrhoea, and when there is, the symptoms subside to some extent ; then constipation sets in, and the swelling again returns. This disease is most common in the dog, and it is astonishing how much fluid may be imprisoned in a dog. Treatment. — Give those remedies that will tend to absorption of the fluids ; support the strength ; encourage the appetite, and not restrict the diet, but give any good food that will be taken ; and give iodine and iodide of potassium, of each one drachm ; or acetate of potash, two or three drachms, night and morning, and if the effusion is very great, the operation of peraoentesis may afford temporary relief. This is easily performed by means of a trochar and canula. However, this operation is not followed by any great degree of success, for the fluid is likely to collect again. It is sometimes, also, necessary to apply a bandage. If the effusion is but slight it will be absorbed ; if it is too extensive to be absorbed, there is not much success in treating it. firllt Tie is occasionally noticed in working oxen. It gives rise to pain and obstinate constipation ; he looks at the sides, etc. Some have afforded relief by cutting into the abdominal cavity and unraveling it. It is difficult to diagnose. The stomach of the ox is divided into four stomachs, or divisions. The first is the rumen, or paunch ; the second, the reticulum, or honey-comb ; the third, the omasum, or many plies ; the fourth, the abomasum, or true digestive stomach. The food is taken into the mouth and masticated to a certain extent ; it is then swallowed and passes into the rumen ; when the rumen is full the process of rumina- tion commences There is some difference of opinion about this process. Some claim that it is performed by the rumen, and others that it is done by the second, and some by the third stomach ; but some ruminants have no third stomach, so it must pass from the rumen up the oesophagus, and, after being remasticated, it is again swallowed and passes through t,he oesophageal canal into the omasum and true digestive stomach. Hoven Blown, or Tympanites. — This is common, and consists in a distention of the rumen 'from the accumulation of gases, due to the sus- pension of the peristaltic action of the stomach. The gases are carbonic acid, sulphuretted hydrogen, and carburetted hydrogen gases, and, in some cases, carbonic oxide. Causes. — It is sometimes a symptom of choking, sometimes the result of chronic indigestion, and may be symptomatic of disease of the liver, parturient fever, etc. The great exciting cause is a sudden change in the food. In some countries wet clover will produce it quickly, and in those 168 CAUSES, SYMPTOMS AND TREATMENT OF places it is very dangerous to turn cattle upon wet clover in the morning. Potatoes and turnips, especially if frozen a little, or feeding peelings, etc., from the kitchen ; bran, shorts, etc., and any kind of food may pro- duce it. In the acute form it is not usually accompanied by any organic disease, but is the result of the evolution of gases. Symptoms in many cases are alarming. The left flank swollen to a great extent, and there may be eructations of gas in the early stages. Rumination ceases ; there is a TREATMENT OP urine may be retained for a short time in the bladder. If the disease goes on and relief is not obtained, the symptoms change some ; the pulse becomes weaker and weaker, the coat changes, the horse looks dull and stupid, showing urtemic poisoning, and if both kidneys are affected, and their secretions arrested, this results very soon. After passing urine the pain is sometimes increased ; all the secretions are more or less affected. Azoturia is often mistaken for inflammation of the kidneys. Treatment must be energetic ; a sedative is recommended. Formerly blood-letting was the remedy used, but fifteen, twenty or thirty drops of Flemming's tincture of aconite is better ; and give an oleaginous purga- tive—one quart of raw linseed oil. To relieve the pain you may use opium or hypodermic injections of morphia ; also injections not only to cause the bowels to act, but tepid water has a good effect upon the kid- neys. Clothe the body well and endeavour to induce perspiration. Slight perspiration around the flanks and shoulders is symptomatic of the disease. Apply hot cloths, mustard, etc., over the loins, and newly- Hayed sheepskin is an old and good counter-irritation. Sometimes blister, but do not use cantharides, for it tends to over-stimulate the kidneys ; it may be used in azoturia. Pressure over the loins is a test for kidney disease, but is uncertain, for any thin-skinned animal will flinch from pressure here, and the kidneys are deep-seated and well pro- tected, but it may increase the pain. It is also recommended to examine per rectum. After the symptoms subside some, regulate the diet and give a few doses of carbonate of soda. At one time it was recommended to give colomel. You may give belladonna instead of opium in some cases. Nejpliritis, I believe, often occurs in the sub-acute or chronic form, and IS caused by poor ]er rectum ; also examine the condition of the blood. The passage of the blood after the urine is also symtoniatic of calculi. In such cases little can be done — but you may try the effect of medicine. With this you oc- casionally find small calcareous deposits ; hence, you may try hydiochloric acid, one-half to two drachms, well diluted with water, two or three times a day. Cutting in and removing these is not successful. Melanotic de- posits are more common in gray horses. You may detect hypertrophy per rectum, if it is exceedingly large. Albuminous Urine, Albuminuria. — It is often symptomatic of other diseases. It is an excess of albumen in the urine. It is seldom noticed in the horse. It is sometimes the result of acute nephritis, but may appear without any organic disease of the kidneys. It may result through nervous influence, by derangement of the digestive system. The Causes are exposure to cold, improper food, etc., and it is most likely to occur in horses worked hard and exposed to the vicissitudes DISEASES OF DOMESTIC ANIMALS. 181 . of the weather. So long as a horse is well kept and well cared for j exposure does not affect him so much. In man it is often brought | about by nervous excitement or hard work, especially nervous work, i The animal loses condition and flesh, has an unthrifty appearance ; ' swelling of the legs, which perhaps partially disappears during exer- I cise ; the appetite irregular ; pulse weak ; stiffness of the back and j loins ; costiveness, but not constipated ; the urine straw-coloured, and ■ if tested albumen can be detected. Take a small amount of urine and I apply heat (100° Farenheit), and the albumen coagulates if the urine i is acid, and the coagulum does not dissolve by heat, but if it is alkaline '- you must add nitric or some other acid ; no doubt it may sometimes act upon the urea and form a precipitate, but this precipitate will dis- , solve by heat. "i Treatment. — Attend to the hygienic treatment, and do not expose ; the animal to the vicissitudes of the weather. Give perhaps boiled ; food, as boiled oats, barley, etc., and in some cases give a mild purge. But perhaps the animal is weakened ; in such a case be careful with ; purgatives ; but I think this is an exception to the rule, and I think a ' purgative is beneficial, especially if the limbs are swollen. For the i after-treatment give sulphate of iron, one to one and one-half drachms, • with arsenious acid, one to two grains. Then give vegetable tonics, ': and build up the system as well as you can. I knew a case of a man ' whose limbs and testicles became swollen, and after various remedies ; had been tried without success — which acted violently, causing exten- j sive watery evacuations — it relieved the man for several years. After ; it attains a certain stage it is incurable, for all the food is passed off ; through the kidneys instead of building up the tissues. It may, in j some cases, be necessary to stimulate the kidneys, to a certain extent. I Calculi may be found in all glands, but more commonly in the j urinary organs. They are found in all animals in the kidneys, withers, bladder and urethra. They are called renal when in the kidneys, and are generally in the pelvis of the kidney, but at first they may have formed in the tubes and come down and lodged in the pelvis. This may exist without any disease being present, but no doubt we , occasionally meet with disease of the kidney, induration, enlargement, ■ or tumours which may have been excited by calculi. Symptoms. — The animal shows uneasiness and colicky pains, which ' pains, perhaps, disappear in a short time, and the animal is appar- ently restored to health. There is straining in passing the urine, and ■ after it is passed there is pain, and if it exists to any great extent, the animal gradually falls off in condition, and if you examine the urine, ; the true character may possibly be seen by the sediment which is : deposited after standing for some time. It is more common in cattle i than in horses. Causes. — The exciting causes are the food and water. It is said that j animals fed on turnips are more liable. Calculi are made up of car- bonate of magnesia, phosphate of lime, etc. I have noticed that where the water is strongly impregnated with the salts of lime the j animals suffer more from this. Sometimes the animal may be in j good condition and have calculi to a great extent — even remain in ■ good condition until death. And it is possible that calculi may be '. present for a considerable length of time before the symptoms become ; well marked. The animal lies down, turns the head to the side, etc. j Examine the condition of the urine, either chemically or by letting it ! stand. 182 CAUSES, SYMPTOMS AND TREATMENT OF Treatment. — Allay the irritation as well as you can by giving mucilaginous drinks — as linseed tea, etc.— change the food and water, and try mineral acids. Give from one-half to two drachms of hydrochloric acid two or even three times a day, well diluted in water, and, perhaps, give a moderate laxative. If it occurs in the urethra, it is called urethral calculi. Vesiciilie, or Cysts, iu the Bladder. — These vary in size. They may be the size of a pea or smaller, or they may weigh several ounces. They are caused by the character of the food. Horses highly fed upon stimulating food, and those used for certain purposes, and not allowed to urinate when nature demands it, are subject to it. The same causes that produce renal calculi will produce cystic calculi. A foreign body may produce a nucleus for them. They present different appear- ances — sometimes white and hard, and composed of carbonate of lime, and sometimes of a soft, pasty consistency. There may be a great number or only one, and, in many cases, they consist principally of carbonate of lime, but various things may enter into their formation, and, being often of lime, they are more likely to exist in the limestone districts. Symptoms. — They are generally plain. After a time something is noticed the matter with the animal, and irritation of the bladder is produced, and there is difficulty in voiding the urine, which, when passed, may be unnaturally white ; he is subject to colicky or abdominal pains, which may pass off and again occur, when it again falls into the neck of the bladder, and so retains the urine, which causes pain. The action of the hind quarters is not quite natural ; there is difficulty in urinating, and when urinating, the penis is pro- truded to an enormous extent and hangs pendulous ; and perhaps the urine is mixed with blood, or blood is voided after the urine is passed. In all such cases examine per rectum, and feel the bladder, and perhaps you may be able to detect it, and may be able to move it from side to side ; but sometimes they are encysted, when you cannot move them. Treatment. — It is possible, in the early stages, to relieve it by regulating the diet and giving remedies to increase their solubility ; so try hydrochloric or nitric acid ; hydrochloric is perhaps the best, and if they are small they may be got rid of in this way. But in some cases there is an excess of acid, then try bicarbonate of pot- ash ; but if the calculus is large, the only remedy is by an operation ; but do not operate unless it is of a considerable size and there are well marked symptoms, then prepare, by a moderate diet. Give no bulky food for a day or two, and have the bowels rather empty ; and it is sometimes recommended to give a purgative, but I do not think it is always necessary. There are various methods. At one time it was recommended to cut into the bladder, but now it is done by cutting into the urethra, ( r cutting through the neck of the bladder. I do not think it is necessary to cut through the neck of the bladder. It may be possible to perform it with the animal standing, but it is best to throw and secure him and place him under the influence of chloro- form, and elevate the hind quarters to some extent ; but perhaps be- fore you throw him it is best to clear out the rectum by an injection or with the hand. Secure him by rope, the same as for castration, then insert the catheter up the urethra, up to the bladder ; then cut down upon the catheter ; or, yoa can have an instrument made, and slightly bent, for the purpose, upon which to cut. Williams recom- mends cutting in the centre. I cut to one side, then withdraw the DISEASES OF DOMESTIC ANIMALS. 183 catheter, then insert the forceps and get hold of the calculi ; but some- times the after results are troublesome, and there is danger of injuring the artery of the bulb, which, it is said, differs in its course in different subjects. After treatment, syringe with tepid water ; stitch up the wound and keep the animal quiet. The trouble sometimes is the dis- charge of urine from the wound, and infiltration setting up irritation and causing death. It is difficult to say just what to do in such cases. I do not know but I would keep the catheter in, and allow the urine to pass ; however, this is difficult to do in our patients. The operation is called lithotomy. But, properly speaking, unless you cut the neck of the bladder, you could scarcely call it this. Lithotrispy is breaking down the stone, but owing to the great length of the urethra in the horse, we cannot perform this. In the mare you m'ay perform by dilatation, even without any cutting in some cases. Get the forceps into the meatus urinrius ; insert them carefully and get hold of and crush the calculus. Sabulous Matter, — There is generally no great trouble in removing this. Perhaps the proper thing is lithotrispy — just crush it in the bladder. Urethral Calculi may pass into the bladder and lodge there a short time, pass out and lodge in the urethra, and may obstruct the passage, and if not removed, will soon cause death by uraemic poisoning or rupture of the bladder. Symptoms. — The animal strains violently when he attempts to urin- ate ; the penis protrudes ; the bladder, and sometimes urethra disten- ded ; and in many cases you can see the exact spot of the obstruction by examining. The remedy is to endeavour to remove it by pressure, or by inserting the catheter ; and if it is small, ic may pass down the escape ; but if you cannot displace it by "the catheter, then you will have to cut down the catheter and remove it. Bring the edges of the wound together by a large suture, and keep the patient quiet ; regulate the diet, and try the effects of hydrochloric acid. This is more com- mon in cattle than horses, on account of the difference in the penis. The treatment is just the same. THE BLADDER A>D CASTRATIOIV. Inversion of the Bladder is a serious condition. It may be dis- placed both in the mare and the cow, and is generally the effect of difficult parturition, but it is possible it may occur from other influ- ences. There is a small tumour noticed to extend from the vagina ; the ureters are brought back, and the urine dribbles down the posterior part to a certain extent. The remedy is to bathe nicely and endeavour to return it by manipulation and gentle pressure. But you may be unable to do this, and gangrene may have taken place. An animal may live for a long time in this condition, but if attended to in time it can easily be reduced. The after treatment is to use opium, hot or cold water — cold is perhaps preferable, after a time, as it is an astrin- gent and contracts the parts. If the parts are gangrenous, you may remove a portion, but the animal is comparatively useless, as the urine has a tendency to dribble from the ureters. Enuresis. — Incontinence of urine. The urine is not retained in the bladder. This is applied to any condition of the bladder in which it is unable to contain its contents. It may come from irritation of the bladder, and is symptomatic of calculi, inflammation of the bladder, 184 CADSKS, SYMPTOMS AND TKEATMENT OF or due to partial paralysis of the hind quarters, which also affects the bladder ; but paralysis does not always so affect the bladder, and you may meet paralysis of the bladder, where the urine may be retained. In all such cases examine as to the state of the blood, and find what is the cause, and if due to general weakness, give a generous diet, mineral tonics, and use cold water frequently, from a quarter to a half hour at a time ; and if due to paralysis you may use nux vomica ; if due to calculi, the remedy is to remove them. There are other names used in connection with diseases of the bladder. Ischuria, truly speaking, is retention, but it is used for both retention and suppression. Dysu- ria is a painful discharge of urine, and stronger where the urine is passed in drops. These are more symptomatic of disease than diseases themselves. Paralysis of the Bladder itself is sometimes noticed in the horse, and generally proceeds from debility or exposure, but may be due to some other influence ; over-distention may cause it, or nervous influ- ence. It is more likely to occur in horses poorly kept. Symptoms. — The bladder retains the urine, unless it is paralysis of the neck ; if that is paralyzed, then the reverse is noticed ; but if there is paralysis of the body of the bladder, it becomes distended to an enormous extent, while the fibres of the neck retain their power of con- traction, and the urine dribbles from the urethra, which may mislead you, unless you make a careful examination as to the state of the bladder. You might think it was a pure case of incontinence, but if examined, the bladder may be found enormously distended. Treatment. — Remove the contents with the catheter, then syringe the parts, first with tepid water, then gradually go from hot to cold ; try the effects of tonics, especially nerve tonics, as nux vomica, and it may be necessary to draw the water once or twice a day for several days. Hseniotiiria, or blood urine, may proceed from various causes, and is symptomatic of other diseases, as calculi, or it may proceed from injury to the urethra, kidneys, etc., and it has been said to proceed from severe sprain of the loins, which causes rupture of some of the vessels ; and such cases are serious, if the rupture is in the kidneys, for the blood will set up irritation, and is apt to produce inflam- mation. There may be blood in the urine, or the blood may be passed immediately after urinating. In such cases examine per rectum, and give an internal styptic, as acetate of lead, one scruple, with powdered opium ; or, you may give the tincture of chloride of iron. Castration. — There are few countries where this operation is not performed to any great extent. The best age for the operation is when the animal is about one year old. There is some difference of opinion about this ; but if it is done younger than this it may prevent his growth to a certain extent, and in some cases it may be advisable to keep him longer, to increase his growth, especially the crest. The spring months, April or May, are the safest time for the operation, after the animal has had a run of eight or ten days at pasture, and his coat is shed. There are certain precautions necessary before operation, which are well laid down in Williams' works, and I endorse them generally. Do not operate upon a colt that has been kept in an ill-ventilated place, but have the colt in good condition, and the weather moderate, neither too hot or too cold. He also says not to operate near any decomposed matter, DISEASES OF DOMESTIC ANIMALS. 186 and have the hands and instruments thoroughly cleansed ; and it is well to notice these, but you might operate without these and with very bad surroundings, and have success ; but it is best to use these precautions. If the horse is older than one year, then prepare him for it by giving a moderate supply of food, and have the bowels somewhat empty ; but it is a mistake to reduce him to any great extent. There is no necessity for physic, as a general thing, unless the horse was in a very gross condition ; but feed lightly, and give but little bulky food. The difficulty that I have had with colts is with those that have been kept in ill-ventilated parts. Before operating, examine as to the state of the scrotum, whether both testicles are down, or whether hernia exists. You can operate, though, if hernia exists, but the operation would be slightly difficult. There is great difference of opinion as to the manner of operating. Secure, by means of ropes, in preference to any other ; the straps that are used may be u°ed, if help is scarce ; but when help is plenty, use the ropes. Some operate while the animal is standing, but it requires some dexterity and practice. Cutting into the testicle quickly subdues an animal. The most careful way is to throw the animal. I recommend throwing him in most cases, at least. After securing him, it is sometimes advisable to cleanse out the sheath and penis by washing it with nice warm water and soap, which tends to prevent swelling to some extent. The operation may be done by compression, which is by the caustic clams, and this is the way it is generally done in Canada and the United States, and I believe there is no way more easy or simple. Take hold of the testicle and make a keen incision, and expose the testicle, taking the smallest first ; make the incision close to the raphe ; make a pretty free incision, and allow the testicle to escape, then divide non- vascular part of the cord, and then apply the clam ; however, some apply the clam to all of it, and they use a certain amount of caustic, as corrosive sublimate or biniodide of mercury, about one part of corrosive sublimate, two of biniodide of mercury, and thirty or forty parts of lard ; this destroys the parts more quickly. After applying the clam remove the testicle, and keep the clam on for twenty-four or forty-eight hours. This method is the one oftenest used in this country, and with the greatest success. Actual Cautery was used until recently in England. The method is just the same as by the clam ; secure the animal, get hold of the testicle, etc., place the clam on the cord and secure it, then take hold of the testicle and cut it off about one-half inch from the clam, then take a piece of sponge and cleanse out the blood, then take a red hot iron, letting it cool to a slight extent — grease it a little to prevent it from adhering— and sear the artery and the other parts. Others not only arrest the hemorrhage, but cut through the scrotum to the testicle with the hot iron, apply the clam and cut the cord off with the iron. I frequently use actual cautery in connection with the caustic clam. Ligature is another method, and I would oppose ligaturing the whole cord ; but if only the artery ligatured, I cannot see any great objection to it. Take hold of it with the bull-dog forceps and ligature it either with silk thread or carbonized suture. Williams is opposed to ligaturing. Tortion is another method, which is not new, but a very old method. For this it is necessary to throw the animal and expose the testicle and cord, cut through the nonraascular part of the cord. 186 CAUSES, SYMTTOMS AND TREATMENT OF place the clam upon the vascular portion, having drawn the cord out as you thought best (some are longer than others, so there can be no rule laid down) ; having secured it, take the tortion forceps, apply them carefully to the vascular part, about half or a fourth of an inch from the clam ; secure them and watch that they do not slip ; then twist it around, testicle and all, and it will take from fifteen to twenty-five turns to remove it; twist it carefully and the last thing that remains is the artery ; after removing it take a look at the artery, and then remove the clam carefully, to see whether the tortion has had the desired effect. About the only objection to this is, it takes a little more time. Williams recommends placing another clam upon the scrotum, to enable you to get hold of the testicle ; but I see no need of it. Ecraseiir is another operation, which I think will be the one used in a few years, but I cannot speak of it to anv great extent from my own experience. I operated upon three this way. I threw the horse and placed the clam upon the cord before cutting it off, to see the effect of it. There are also other methods, as scraping, bruising, cutting out a portion of the epididymus, etc. But the simplest method is the best, and if you have used any of the methods success- fully, then continue the same. Although it is a simple operation, it requires some practice, and the great danger in some cases, is pulling the cord too much, or applying too much caustic, which irritates the cord and sets up peritonitis ; and the great secret is in having the animal in proper condition. Never operate upon any animal that is not in good condition, or that shows any symptoms of influenza, strangles, etc. RESULTS OF CASTRATION. Results of Castration, — They may be either normal or abnormal. After the operation there is more or less swelling, and although it may attain a great size, so long as the appetite is not impaired, or the pulse affected, there is no danger ; but if the swelling takes on an odematous character, the best relief is to scarify in two or three places, then bathe with tepid water ; give a little exercise, and if he is costive, perhaps, give a little laxative ; but if the colt is turned on pasture this is not generally necessary. Adhesion of the tunica vaginalis and tunica albuginea. It is necessary to break down the adhesion, which can generally be done with the finger or the end of the scalpel. When adhesion is present, a greater amount of irritation follows than where there is no adhesion. There may also be a slight pain after the operation, which may be from the cord, colic, or slight irritation of the bowels from the operation. If the animal cringes, lies down and rolls, it is best to give an opiate — opium, one-half to one drachm ; or give hypodermic injections. Suppuration is another condition, and it is impossible to operate without suppuration, more or less, and when suppuration takes place, and healthy pus is discharged, the animal is considered safe ; and when pus is not properly formed there is more danger. Pus may form and not be healthy pus, and if there is unhealthy pus or serum, and the pulse quickened, then there is irritation, and peritonitis may result. DISEASES OF DOMESTIC ANIMALS. 187 Abnormal Results. — Suppose you have properly performed the operation and let the colt up, and hemorrhage exists, which may be from the spermatic artery, or from the veins of the scrotum, or from the artery of the cord. When you cut through you are likely to cut through convolutions of the £ft:tery, and so have three or four ends, and you should see that you secure the right end. If the hemorrhage is from the spermatic artery, it runs freely, for this is the largest artery in the body that gives off no branches. As to the way of arresting hemorrhage is from the spermatic artery, there is no difference of opinion. If it is very profuse and endangers the animal, throw him and endeavour to get hold of the cord, which you can do easily, in many cases. If a good opening has been made in the scrotum and tunica vaginalis, put the finger well down and get hold of and gradually bring the cord up and secure it in the way you think best. The best way, perhaps, is to ligature it, or you may use the hot iron ; but if you have difficulty in getting it, then endeavour to arrest it by styptics and compression, by plugging with tow saturated with iron or acetate of lead. However, there may be internal hemorrhage, but this is the exception and not the rule, and I would recommend this, in some cases, instead of throwing the animal. The plug should be left in for twenty-four or thirty-six hours. Considerable swelling may result, but there are generally no serious consequences from it. Cold water to the loins, and to the parts, is also a method of arresting the hemorrhage. I questioned, at one time, whether an animal in good health, and one year old, would bleed to death from one cord, but I am now convinced differently. I would prefer styptics in some cases. Sometimes a secondary hemorrhage occurs from rupture of the cord above the clam, but it is rare. Hernia is another abnormal result, and it may exist previous to the operation, or the operation may be performed and hernia not noticed until the animal gets up ; and it is possible it may occur during the operation. When hernia exists, prepare the animal and use the covered operation — by cutting down and exposing the testicle still in the tunica vaginalis; and place the clam over the testicle, tunica vaginalis and all. If hernia takes place as soon as the animal gets up, the operator is often blamed ; but it may occur during the operation. If you should begin to operate, and hernia is present, return the testicle and stitch up the scrotum, and do not operate at that time. But if it occurs soon after the operation, as it often does, so that the bowels protrude, even in some cases to the ground and are trampled upon, then destroy the animal ; but if the bowels are not injured, throw the animal — or he will perhaps lie down — secure him, cleanse the intestines nicely and return them, and stitch up the scrotum close to the inguinal ring, and apply a clam over the scrotum, or if you have not a clam, ligature the scrotum for the time being, bnt if the intestines are impaired, inflammation and peritonitis may cause death. Scirrhous Cord, or Champignon, may follow any method of ope- ration, but is more likely to follow the caustic clam than any other, for it is necessary to keep the clams on for some time ; after that the cord perhaps protrudes, causing more or less irritation ; adhe- sion takes place between the cord and the scrotum, but we scarcely call it scirrhous cord, unless it becomes enlarged. If in three or four weeks the cord protrudes and adheres to the edges of the 188 CAUSES, SYMPTOMS AND TREATMENT OF wound, you can relieve it by breaking down the adhesions between the cord and scrotum, in some cases, without throwing the animal ; then bathe nicely, use astringents, etc., and it may be necessary to break it down every day or two for several days, and bathe every day with tepid water for some •time, and give a little exercise. Sometimes the cord becomes enlarged by a fungoid growth, and, in some cases the wound may entirely heal up, or there may be a small opening left, through which issues an ichorous fluid, and it will remain for a long time, even as long as the horse lives, if it is not operated on. And the irritation is not confined to the cord alone, but extends up toward the inguinal canal ; it becomes very vascular, new growths are formed, etc. In such cases the animal suffers considera- bly, there is difficulty in progression, he falls off in condition, and sometimes there is profuse discharge of pus, after which the animal seems relieved for some time ; but irritation is again set up, and the same thing occurs. The remedy is to remove the diseased part of the cord, and the sooner the better. If the animal has suffered, perhaps, four or eight weeks, it is easily done. Open it up well and apply the clam as close to the inguinal ring as possible, and cut the diseased part off and secure the articles by ligature or by cautery — if by liga- ture, leave the ends of the ligature long, so that they can be taken out after a time ; and you often have to secure several vessels, and I pre- fer a ligature. In some cases you might apply a clam and take it off by torsion, or use the clams and sear the small vessels and ligature the small ones ; keep him quiet, feed moderately, etc. But sometimes it exists in the abdominal cavity, and then the operation is not likely to be successful. Peritonitis is a result of castration, and is more apt to occur in colts. It may be due to the manner of the operation, or to a change of weather ; but I think this is more likely to occur where the tunica vaginalis is irritated. I have seen it where there was a large amount of caustic, causing inflammation and peritonitis ; or, it may be due to atmospheric influence ; the symptoms are sometimes deceptive. It generally appears in about three or four days. In some cases the scrotum swells but very little, and there is no discharge of healthy pus, but there ia a discharge of bloody fluid ; the pulse is quick ; the appetite gone; slight pains, not violent; he lies down, gets up and casts a peculiar, anxious look at the abdomen ; gets up and stands around in a dull, languid manner; the breathing is affected ; the pulse sixty or seventy, and weak. It has a great tendency to extend over the whole peritoneum. Give opium and digitalis, and counter-irrita- tion, etc., and support the system as well as you can by stimulants, gruel, etc. Tetanus usually appears about eight or nine days after the opera- tion, just about the time it begins to heal ; there may have been changes m the system before this, but the symptoms were not devel- oped. It may follow any operation, and, as a general thing, the operator should not be blamed if the horse dies from some of these, but he generally is. Tetanus may supervene a very trivial injury ; cold weather, cold draughts and exposure in any way tends to bring it on. There is an account given in our works of twenty-four horses that were castrated, and were given a cold bath four times a day after the operation, and sixteen out of the twenty-four died with tetanus ; and I saw a case that I think was caused by the colt standing in a stream. Keep the animal quiet ; apply fomentations, and endeavour DISEASES OF DOMESTIC AMIMALS. 189 to induce suppuration. Give hydrocyanic acid, belladonna, etc.; treat it just as a nervous fever ; give a generous diet and bromide of potassium. Amaurosis results, and is some1;jmes due to excessive hemorrhage ; and if it is, the eyes will regain their natural condition as the system gains strength. But it sometimes occurs through a sympathetic nervous influence, and remains during life. (xianders and Farcy, — When this does appear, I think the infec- tion had been in the system before the operation, and it is due to con- tagium in some form or other. Operating upon Originals. — I cannot speak from experience. Prepare the animal, and make an incision as in other animals ; insert the fingers, and if the testicle is in the inguinal canal, get hold of it and draw it out, and take off with the ecraseur. If it is in the abdominal cavity, it is more difficult, but several of our graduates have performed the operation successfully. Some claim that they go behind Poupart's ligament ; others pass the hand up the inguinal canal and break through the peritoneum with one finger, and the testicle will generally be found on the fundus of the bladder. How- ever, the operation requires practice. THE TESTICLES. Inflammation of the Testicles. — This is not common in the lower animals. The causes are injury of some kinder other — sometimes, in a stallion, from a kick, or exposure to cold. It is caused in a bull in the same manner, and occasionally from tubercular deposits, but usually from direct injury. The symptoms are generally plain, and your attention is usually directed to it. There is intense pain in the early stage ; a slight injury to these organs sets up great pain ; and when the whole organ is affected, the pain is intense, and they some- times become enormously swollen in a very short time, and swelling generally affords some relief; he walks with great difficulty, and it increases the pain ; he will sometimes lie down and attempt to roll, but generally continues standing; lying down increases the pain. Treatment. — If in a valuable stallion, he is generally in high con- dition, in which case it is necessary to give a good dose of purgative medicine, or blood-letting may be necessary ; take six, eight or ten quarts of blood ; or, instead of this, give aconite ; bathe at first with tepid water and increase the heat, and bathe for several hours and keep heat to the parts ; you can do this by means of a bandage over the loins, kept in its place by means of a surcingle ; keep cotton or cloths to the parts, and keep them supplied with warm water ; give belladonna or laudanum. Local blood-letting is beneficial, but it is difficult to perform in the horse. During the early stage the appe- tite is entirely gone, and when he is relieved and the appetite returns, he should be fed sparingly. Give diuretics freely ; sweet spirits of nitre, iodide of potash, etc., which increases the action of the kidneys, and stimulates the absorbents. If, after the irritation subsides, enlargement of the testicles remains, use iodine, both inter- nally and externally, which, it is said, if used for some time, will reduce the size of the testicle. The treatment of the balls is similar, but it is associated with tubercular disease. You may allay the irrita- tion, but the animal will generally remain impotent. Hydrocele Dropsy of the testicle and scrotum is most likely to take 190 CAUSES, SYMPTOMS AND TREATMENT OF place frorr. injury, when the inflammation is prolonged, but not very severe ; for when any serious membrane is injured, there is more or less effusion ; the scrotum is enlarged, and you can feel the testicle, which does not seem increased in size. The scrotum may be distended by hydrocele, or hernia, and in gildings from an enlarged condition of the cord. If there is much fluid present, you must puncture with a small trochar— something like the one used in human practice. After this give iodide of potassium internally and use iodine exter- nally. It is recommended to inject the tunica vaginalis with iodine, but there is danger of producing irritation. Diseases of the Scrotum. — These can generally be traced to some diseased condition of the spermatic cord, the result of castration — as scirrhous cord, abscesses, fistula, etc. Scirrhous cord may come in two or three weeks after castration, or it may come years after the operation. Abscesses may be caused by a foreign body, or may be due to the scrotum closing up before the cord is completely healed ; matter is formed at the cord, it becomes dry, sets up irritation and results in an abscess ; and when due to this, it generally appears about three or four weeks after the operation. And it may be due to the incision not having been made large enough. So I again recommend a pretty large incision. It may come from a small piece of the iron remaining in the wound, if actual cautery was used. Or it may be due to a ligature setting up irritation, and the ligature should be left long, so it can be removed. Abscesses generally seriously interfere with the condition of the animal ; he is* gradually reduced in flesh ; the swelling seems to involve other parts — sometimes it extends right down to the hock, and sometimes you may think there is not much matter, but it may be present and be two or three inches into it. The best thing is to throw the animal and open it up pretty freely — you may have to cut in three or four inches. Then keep it open, foment the parts and feed the animal well. If you open them well and let the matter escape freely, it generally effects a cure ; but they form again and again. We are apt to treat them without opening them ; but it is not the proper way. I believe horses are * sometimes lost by this negligence and delay. After opening, inject well with tepid ws.ter, and even with carbolic acid, and if he is debilitated, give tonics. Injuries to tlie Penis, — This occurs to both geldings and stallions. In tlie stallion it may be due to mal-address, causing irritation and inflammation ; or being kicked when it is erected — this is very apt to be followed by inflammation — striking with whip, stick, etc., and is occasionally the result of exposure to cold. This sometimes occurs with geldings until they are unable to retract it into the sheath, and this is called Piiraphymosis, and it is sometimes due to the muscular tissue losing its power of contraction. This may be the case if a horse is put to too many mares. But I will speak of that caused by injury. If the penis protrudes for any length of time, the sheath restricts it, and sometimes becomes enormously extended, and ulceration is likely to follow if not relieved. Treatment. — If it is of only one or two days' standing, try fomenta- tions—warm water, in this case, perhaps, is preferable to cold, al- though cold causes contraction of muscular fibres. In this case it is so swollen that it could not be contracted, and the swelling must be reduced some before ijb can be contracted, and, in some cases, it is necessary to scarify it in two or three places, even, in some cases, before trying the warm water. When scarified it will bleed, and you DISEASES OF DOMESTIC ANIMALS. 191 should encourage the bleeding. I have seen cases where it would be retracted from this treatment in five or six hours ; but in some cases you may have to keep it up for twenty-four hours. It will generally retract when the swelling is reduced, unless there is great injury to the muscles ; and after it enters into the sheath, try cold water, and I do not think it bad practice, in some cases, to put a stitch or two through the sheath to keep it in for aa hour or two. In some cases it is necessary to give constitutional remedies, and in nearly all cases give diuretics, iodide of potassium and nitrate of potash. This may result from the debility caused by strangles, influenza, etc., and the treatment is similar. But it may lose the power of retraction in a stallion from too frequent coition ; the muscles have been strained, and so lost the power of contraction. Such a case requires a great deal of time, and so long as he is in this condition he is useles ; but he may completely recover after having been in this condition for a long, time, even as long as twelve or eighteen months. If it is due to this cause he is apt to be in high condition, and it is necessary to reduce him some, but still feed him tolerably well ; give nutritious food and some exercise ; apply cold water to the penis and peroneal space, and use a suspensory bandage and keep it up, for hanging down tends to increase the irritation. Try the effects of iron and nux vomica, etc., to improve the condition. The penis is also sometimes the seat of Warts and Growths, of various kinds, often prove troublesome and painful, especially when urinating. They are more common in the gelding than the stallion, and may result from the penis not being properly protruded when urinating. Sometimes they are of a malignant character, which generally ends fatally, sooner or later. Your attention is generally directed to it, but in examining for soundness it might be overlooked. If a horse is in health, and the sheath is well developed, there is not much the matter with the penis. But if he is debilitated and tucked up in the flanks, and has a small sheath, there may be trouble. There may be ulceration of the glans penis, from the causes I have mentioned. Get hold of the penis, have it nicely washed in soap and water, and touch the parts with nitrate of silver, carbolic acid, sulphate of copper, etc. In case of warts, remove them with the knife, and if you think there is danger of them growing again, touch with nitrate of silver, or the actual cautery, and keep the parts clean. Sometimes the penis is one solid growth of these, and in most cases it is necessary to throw the animal. I do not think it bad practice if there is hem- orrhage to touch with the hot iron ; and if the horse is in poor con- dition, give tonics, good food, etc. Sometimes the glans penis is so swollen that the only chance of saving the animal's life is by ampu- tating the penis, which looks like a very formidable operation — but it is not a very serious affair. First insert the catheter, and in cutting bring it to a point and secure the arteries ; or you may, in some cases, arrest the hemorrhage by using cold water, and if you can keep the catheter in for a day or two, it is all the better, which will prevent cicatrization, for if it occurs, you will have ursemic poisoning and death — and this is the trouble I have had. But you can generally tell whether this is taking place. In about nine or ten days, just when you think it is about getting well, the urine is passed in a small stream ; so that if you can keep the catheter in do so. Keep the sheath clean and allay the irritation by astringents-. Some recom- mend taking the warts off by ligature, but it is not best. 192 CAUSES, SYMPTOMS AND TREATMENT OF URETHRA, ETC, Stricture of the Urethra sometimes occurs. It is usually the result of inflammation, but may result from injury. It is, perhaps, oftener seen in cattle and sheep than in the horse, and may be associ- ated with calculi. There is difficulty in urinating ; the urine passes in a small stream. Inject with tepid water, with five or ten grains of sulphate of zinc to the ounce, and endeavour to relieve by passing the probang, if necessary ; but this cannot be done in cattle. Phyinosis. — This results from inflammation, and is sometimes a sequel of castration, from swelling of the sheath ; but so long as there are no great symptoms of fever it is not very serious. But if the pulse is quick and the appetite gone, it shows inflammation, and, perhaps, internal inflammation as well ; or it may be the result of growth within the sheath. This is more likely to occur in geldings, because the penis is not protruded so freely as in the entire horse. Make a careful examination, and if it is the result of castration, scarifying and fomenting may relieve it ; but if it is from growths remove them. Touch the parts with caustics— as sulphate of copper, carbolic acid, nitrate of silver, etc. ; and if the animal is in poor con- dition, build up the system, wash the parts carefully and use a little oil. Ulceration of the Urethra is generally the result of injury, from being kicked, getting over a partition in the stall, etc. Endeavour to allay such an irritation as quickly as possible ; but if ulceration has occurred, and a fistula is produced, then it is difficult to treat. Bring the divided edges together and, if it is of long standing, scarify, and then bring the edges together, and if you can keep a catheter in for some time, it is best to do so; and sometimes it is impossible to relieve it. The sheath, also, sometimes becomes dirty, and we have some- times to attend to such cases. It may, if neglected, give rise to seri- ous results ; and there may be a kind of sabulous matter in the meatus urinarius, which, in some cases, may obstruct the passage of the urine. But if it is small, perhaps the size of your finger, it is not serious ; but if it obstructs the passage of the urine, then just remove it and it affords relief ; then wash with a solution of carbolic acid, chloride of lime, or sulphate of zinc. Excoriation of the Penis. — This may occur in covering stallions, which may be due to the manner in which the penis is handled, or it may be due to the parts of the mare being small, or to serving a mare too soon after parturition — some discharge from the mare affecting it. Give a good dose of purgative medicine ; lessen the diet ; give diure- tics, and bathe with cold water ; and give some mild astringent, but be careful about anything strong, or you may lose the service of the horse for a long time ; but it is not generally necessary to lay him up more than two or three days. Inflammation of the Urethra is also occasionally noticed, both in horses and bulls, but is more common in dogs. There seems to be a kind of gonorrhoea in the dog, somewhat similar to that in man. Inflammation sometimes occurs in bulls, from jumping too violently upon a cow. It may be due to contagious influence in the dog, and there is said to be such a disease in the bull. In such cases act upon the system by laxatives, diuretics, etc., and use sulphate of zinc. Powerful astringents may suddenly arrest the discharge, but this sometimes sets up constitutional fever, so I would recommend iodide of potassium, nitrate of potash, etc., followed by iodide of iron, which is excellent in the dog, and in any animal. DISEASES OF DOMESTIC ANIilALS. 193 PAKTURITION. The Membranes that enclose the Foetns before Birth.— The ex- ternal is the chorion ; the internal is the amnion, and between these two we have the alantois, which is a kind of serous membrane, and presents two portions — one in connection with the amnion, and the other with the chorion. It contains the amoniotic fluid. It serves to keep the foetus warm, and to protect the foetus and the mother ; and in connection with the foetus, at an early period, there is what is called the umbilical vessel, which, at birth, is hard to detect. Then we have the placenta, by which the blood vessels of the foetus and those of the mother are brought into close contact ; yet they do not anastamose, but the changes take place in the blood by osmotic influence. Then there is umbilical cord, which is formed of the two umbilical or hypogastric arteries and the umbilical vein, covered by a gelatinous matter. Then there is the urachus, which is in con- nection with the bladder, and in after-life forms a ligament for the bladder. The placenta in the mare is attached by villi. In the cow it is attached by cotyledons, which are about sixty or seventy in num- ber. The capillaries of the foetus and uterus come in close contact, and so form these villi and cotyledons. They are little tufts attached to the uterus. The period of gestation varies in different animals. In the mare it is eleven months, in the cow nine months, in the ewe five months, in the bitch sixty-three days, in the sow one hundred and twenty to one hundred and forty days. But a mare may go even a month longer than the time ; and a case is recorded where a filly had a fold at twenty-two months old, and heifers at fourteen months old; and a case is recorded of a mare having a foal at thirty years old. Mares moderately kept and worked will breed longer than one kept in opposite manner. Difference of temperature is also supposed to have an influence. We are sometimes called to tell whether a mare or a cow is pregnant or not, and a correct opinion can sometimes be given, and in other cases a mistake is easily made. A mare generally be- comes quieter in disposition, thrives better, and, after a certain period, the belly becomes distended, and some mares may go eight or nine months without showing this much. There are various ways recom- mended to determine this. The stethoscope is recommended, by which you can hear the foetal heart beat ; but you will be very liable to make a mistake in this way. Another is to insert the hand into the vagina and find out the condition of the os-uteri. But the best way is to examine per rectum, and in any case where it is necessary to give a definite opinion, examine in this way. As to the manner in which a mare should be used during pregnancy, there is difference of opinion. Keeping her in her natural condition is perhaps the best, but it is necessary sometimes to work her, and so long as Mforked mod- erately and not put to the waggon or cart, nor backed violently, there is no great danger. Such is the case with farm mares, and parturition is easier with them than those kept in the stable. There are certain signs of immediate parturition ; the sacro-sceatic ligament changes to a certain extent, and there is milk secreted; and when a wax appears on the teat, parturition generally occurs in two or three days, and often in twenty-four hours, and the water bag appears. The mare usually lies down, but the cow sometimes stands during parturition. It is sometimes best to be present to ligature the artery. Tie it about an inch from the umbilical opening, and cut off about an inch from the ligature. The natural presentation of the 'foetus is the fore feet 9 194 CAUSES, SYMPTOMS AND TREATMENT OF and head protruding ; and when you are called and find the membranes protruding, examine the parts, if you can, before rupturing the mem- branes, and if all is right, delivery is generally easy ; and do not use much force, but while the pains are present, use gentle force. But there are abnormal or unnatural presentations. Sometimes the abdo- men of the foetus is enlarged to an enormous extent, the result of dropsy. Although the head and feet protrude in a natural way, it is impossible for delivery to be accomplished without help. In such a case return the fcstus to a certain extent, and see if there are any ab- normal conditions. If it is dropsy, let the water out, either with a long trochar, and canula, or make an incision in the belly and let the fluid out. The foetus is not generally alive in such cases ; and if alive, there is no use keeping it alive ; and you may meet a case of hydroce- phalus, until the head is distended — until delivery is impossible. The feet and nose are perhaps protruding, and by inserting the hand you can feel the enlarged condition of the head ; then let the water out. And there are other deformities, which, although the presentation be natural, will give you trouble; and when you see a proper presenta- tion and DO delivery, you may expect some difficulty, and hard work and perseverance are necessary. And do not be hasty in giving a case up, but make a careful examination, and find whether it is a fore leg or a hind one, which seems an easy thing, but when it is covered by the membranes it is not so very easy. We sometimes meet a case where the labour pains are present to a certain extent, without any signs of delivery. Make an examination, and if a mare is suffering from pains previous to her time, give one to one-and-a-half ounces of tincture of opium ; or the powdered opium, one to one-and-a-half drachms. If the os-uteri is not dilated, use a little patience, and do not resort to force too soon, but dilate the os-uteri ; and after you have properly dilated it, delivery will take place ; but there are exceptional cases. If the pains have been present for some time, then dilate the os-uteri, and in some cases, inject with tepid water ; smear the parts with belladonna and oil, or soap and water ; get one or two fingers in and work away, and dilation will gradually take place just by the force of the hand. If this fails, you will, in some cases, have to cut it, and this is attended with more success in the cow than in the mare ; but, in some cases, it is the only chance. Make the incision in the upper part, but do not be in a hurry using the knife. We sometimes meet with cases where the hind feet are presented, but this is not a very difficult presentation. It is about second in the list, and it is rare that it is accomplished with some assistance. Possibly the body is turned on one side. The way to proceed is to examine closely, to see what you have to deal with, and turn upon the belly, as nearly as pos- sible, by making an assistant pull the feet while you get your hand in beside the body and turn it over, and delivery can be accomplished. Another condition is having the hind feet presented and the foetus upon its back, when delivery cannot be accomplished without assist- ance. Proceed to turn it upon the belly, if possible, by attaching a rope and manipulating, and the fewer instruments used the better ; but you will often find benefit from the rope, and it is best to raise the hind parts a little, and while the rope is being pulled, endeavour to raise the buttock of the foetus over the pelvic bones. Great damage is done by pulling upon the foetus when in this position, and when you use force pull upward. Breech Presentation Proper is where the buttocks and hind quar- ters are presented. It is very difficult, and if it is a powerful mare, DISEASES OF DOMESTIC ANIMALS. 195 and the pains have been present for an hour or two, and by putting the hand in you find the only thing protruding is the tail, then it is difficult, and in some cases, it is impossible to deliver it without cutting, and the way to proceed is to endeavour to get hold of the hind legs, which is easier said than done. The crotch is useful to press the foetus forward to some extent ; at the same time endeavour to get the hind legs. Get a rope under the stifle and pull back some, and if you can get the rope down to the fetlock and get one leg, you will generally be able to get the other. Use force while the mare is strain- ing. You may not be able to get the feet into position, when the only chances are to cut the limbs off at the hock — that is, where the hocks are protruding — and the best instrument is the chain saw, which I would recommend you to have. Having removed the hock, put the foetus forward, when you will be able to get the limbs. Another method is embryotomy, or cutting away the foetus. Another way is to make an incision just below the tail and remove the contents of the abdomen, and by diminishing the size of the bowels you may be able to deliver it. A hook is of use in this operation. If you fail in this, then cut through to the brim of the pelvis and take off one hind leg. This requires perseverance and hard work. Another false presentation is where the fore legs protrude, and the head is turned back over the shoulder. In such a case improperly applied force is of great danger. In such a case apply a cord around the fetlock and push the foetus back into the cavity and get hold of the head, and you may be able to get a cord around the under jaw ; then push it back with the crotch and straighten it out, and you will be able to deliver it. One of the limbs may protrude and the other be back with the head, or the head thrown down between the fore limbs. In such cases no amount of force will be able to deliver it. Where the head is thrown down it is a pretty difficult case. Push it back and endeavour to get hold of and straighten the hand, and delivery will be easy. Another presentation is the head protruding without the feet. In such a case the foetus soon suffocates if relief is not afforded. Push it back into the cavity and get hold of the limbs, and then deliver it. But if it is two or three hours after the foetus has protruded, and it is dead and the head swol- len, then disarticulate the head and attach a cord around the cervical vertebra, then push it back and get hold of the fore feet and take it away ; but do not be in too nluch of a hurry in giving up a case, and use your head as well as your hands. As to medicines, there is benefit in opium, chloroform, etc., and it is best sometimes to put the animal under the influence of chloroform. Change the position of the animal, elevate the hind quarters, etc. Sometimes we meet a case where the side of the neck is presented and the feet turned upward. The best way is to turn it and bring it into its natural position ; endeavour to get a rope around under the head and a portion of the limb ; get an assistant to pull, and get your hand in ; manipulate and you can gener- ally turn it, but not always, and it is sometimes necessary to perform embryotomy. Endeavour to sever the attachment of the fore extremity from the trunk ; draw the leg out and make an incision as high up as possible, and run the knife up the inside of the leg to the shoulder, but do not ci^t the leg off about the knee, for it makes the case worse. In some exceptional cases you may have to cut off the other leg. Another is a back presentation. It is very difficult. When you ex- amine perhaps you will find the loins or dorsal vertebrae presented, and if the hind quarters are nearer than the fore, endeavour to make it a breech presentation ; but if the fore quarters are nearer, try to 106 CAUSES. SYMPTOMS AND TREATMENT OF make it a natural presentation. You may be able to turn it with the crotch, but if you can not change it, then perform embryotomy. Cut through the vertebral column the best you can, and use the chain saw ; get into the thoracic cavity and get the contents of the abdomen out, but it is a very difficult case. Another condition is where the whole four legs, or perhaps three of them, or a fore and a hind one are pre- sented. It can not be delivered in this way, and you must endeavour to make it a natural or breech presentation. It you endeavour to make it a breech presentation, get a rope around the hind leg ; if you intend to make a natural presentation, get the rope on the fore leg. Then use the crotch, and turn it. In the case of twins you may meet with difficult presentations, but when they are twins they are not usually so large as where there is but one. You may meet with breech presentation where the hind limbs of both are presented, or the fore limbs of both. I saw a case where they were coming belly to belly. The remedy in such a case is to push one back into the cavity and effect a delivery of the other. And you may meet with many presen- tations different from the ones I have mentioned. The first thing is to make an examination ; the second, to use force if necessary ; and the third is, to persevere in it. Sometimes the foetus dies, and the liquids in connection with it escape, and the parts become dry, and delivery is assisted by injecting with tepid water. Some recommend oil ; I prefer tepid water. And sometimes decomposition sets in, and the foetus and the vagina of the mare swell greatly ; perhaps the mare can not get up ; the pulse is almost imperceptible, and it is best to destroy the animal. This seldom occurs, only after a great deal of force has been used. Sometimes you will meet a case where the foetus is carried for a long time over the time, and it is said that the mother, in such a case, may conceive again ; but if the foetus carried is in the uterus, and not in the tubes or in the abdomen, conception can not take place. I saw a case of a cow that seemed to be pregnant for seven or eight months About the eighth or ninth she decreased in size, and about four months after the usual time of calving I examined and found the uterus but slightly enlarged. I dilated it with my hand without any great amount of force. But, in such cases, I believe there is a certain union between the foetus and the uterus, which has to be broken down. In this case I worked five or six hours, until I was tired out, and thought better to desist for the time, and make another attempt ; then in five or six days I returned and worked five or six hours, using the hand and a knife carefully, and again left it, and again returned and removed it entirely, and the cow recovered com- pletely, but I do not know that she was ever again in calf. A cow will stand a great amount of cutting and carving, if you do not in- jure the uterus. In such cases your arm will suffer considerably from the acrid properties of the fluid, not that it is of a poisonous character, but eruptions may come on the arm and be painful ; and sometimes we hear of a practitioner dying from the effects of it ; but I do not think it is caused by any poison, but by the irritation se^. up ; erysipelatous or phlegmonous inflammation is set up, although it has been said that it was due to the poison of the decomposing matter. A mare should be carefully used after difficult parturition ; keep her nice and warm, and bathe nicely with warm water, to allay the swelling. I believe some cases are lost by carelessness after parturition, as by allowing the animal to lie on the cold ground, which sets up inflammation of the womb. But keep warm, give an opiate, sweet spirits of nitre or alcoholic stimulants, and if there is DISEASES OF DOMESTIC ANIMALS. 197 no irritation after a day or two there is no great danger. Sometimes the entire membranes are retained after parturition, and it is called retention of the placenta; more properly, perhaps, retention of the foetal membranes. It is more common in the cow, and also in the sheep, than in the mare. There is a difference of opinion as to what should be done in such cases. I think it is best not to be in too much of a hurry in removing it in such cases by force, especially in the mare. In most cases it comes away in from five to fifteen minutes up to eight or ten hours. There are certain remedies re- commended, as savin, laurel, bi-sulphite of soda, etc. I do not think powerful remedies are called for, but in the cow regulate the diet and give from two to eight ounces of Epsom salts, with some gentian and ginger, perhaps given in two doses ; keep her warm, give nice food, and the after-ljirth will, in most cases, come away. But if this fails you must remove it, and do not allow it to remain too long. But so long as it does not decompose to any great extent, there is no great danger ; but when it does decompose, it may give rise to septicaemia. It is j^enerally easily taken away. Just get hold of the membranes with one hand, then insert the other hand into the uterus and break down any adhesions with your fingers. In the mare it is removed in the same way. After removing it, sup- posing it had remained in for eight or ten days, inject the uterus with tepid water, and after this with a weak solution of carbolic acid, feed well and keep her comfortable. There is a more serious result than this, which is inversoin of the uterus. This is very serious, and not uncommon, and is more frequent in cows than in mares, and the treatment is more successful in cows. It is most likely to occur in weak and debilitated animals. In those fed upon poor food the ligaments of the uterus become more than naturally relaxed. In the mare it is similar, and is a very serious condition, and is seldom treated with success. If it is only partially inverted, it is not so serious; but if it is complete, you can notice the uterus protruding, which is a large, reddened, swollen mass, and the foetal membrane may be attached to it. If it is complete in the cow she does not stand long, owing to the weight, and when she does lie down she may not be able to get up. The uterus becomes dirty and exposed to the cold. The proper thing is to cleanse and return it, which is difficult, but it can be done. If the foetal membranes are attached, remove them carefully ; bathe the parts nicely, and it is recommended to scarify, but you must be exceedingly careful about scarifying. As well as tepid water, bathe with laudanum and water (but before it is necessary to put a large cloth, as a table-cloth, under the parts); then endeavour to return it, which is easier done when the cow is on her feet ; so, if you can, get her on her feet, and if you cannot do this, turn her upon her back. There is difference of opinion whether to begin at the fundas or neck to return it, but if you cannot do it one way try the other. Then there is another difficulty, and that is to get it in position after it is returned ; but endeavour to carefully unfold it, and then give opiates, or stimulants — some recommend one, some the other. And it is necessary to keep it in by some means — elevating the hind quarters is of benefit, and there are various pessaries recommended. A good one can be formed by covering a piece of wood with cloth or chamois skin, pass this in and secure it in some way ; a bottle has been recommended, but it may get broken, and a piece of wood the shape of a beetle makes a good one. Secure and keep it in by ropes 198 CAUSES, SYMPTOMS AND TREATMENT OF or straps. Another way is to put three or four stitches through the vulva — the animal can urinate through the lower opening. And there are various trusses which are of benefit in some cases, but I think the pessary the most successful. It is a good plan to press upon and get the back to bend down. Some recommend, and I have tried, inserting a big pin through the skin on the back, and put twine around it, which causes the back to bend. This is similar and more troublesome, but not so common, in the mare. You may meet a case where the uterus is gangrenous. Then do not return it, but you may endeavour to save the life of the animal by remov- ing it, which is sometimes successful. And in some cases it is best to place the animal under chloroform, then tie a cord around it as close to the OS-uteri as possible, then cut the parts off and arrest the hemorrhage. Some recommend using the ecraseur, taking one-half, one-third, etc., at a time ; then keep her quiet. If she is weak, as she is apt to be, give stimulants, but I do not know whether it is juecessary to operate on a mare. I never knew a mare to recover. Another con- dition is prolapsus, or inversion of the vagina, both before and after parturition, and is more common in cows than in mares. Poor keep- ing is a common cause ; another cause is an impacted state of the rectum ; or standing in a stall higher in front than behind. By ex- amining you can tell the difference between this and inversion of the uterus, and sometimes the uterus protrudes at the same time. If due to a compacted state of the rectum, clear out the rectum, and it is generally easily returned. Remove the cause, elevate the hind parts, and you can use a truss of some kind, and if the animal is in poor condition, give a generous diet, tone up the system, etc. The treatment after parturition is just the same as before parturition, and it may protrude for some time before parturition without doing much harm. In some cases it may be advisable to put a suture through the lips. Astringents, acetate of lead and water, have been recommended. After cleansing use cold instead of warm water, which tends to contraction. But if there is irritation I prefer warm applications. If the uterus is lacerated, stitch it up and then en- deavour to return it. It is recorded that some have recovered. I never saw a case recover. D[SEASES AFTER PARTURITION. Milk, or Parturient, Fever, which differs from parturient apoplexy. Any case of parturition produces more or less fever, the pulse is slightly quickened, the temperature elevated, etc. Parturient fever usually accompanies the secretion of the milk. There is a great amount of blood in the system which goes to the milk, and milk fever is an invariable sign of a good milker. Symptoms. — The pulse increases some ; the udder becomes tender and slightly swollen, the swelling extending along the belly, and sometimes between the fore legs — and even in some cases before parturition; the breathing is slightly quickened; the mouth hot; and when the milk is properly secreted there is no danger to be apprehended. Although it is simple, we are sometimes called to treat it, and sometimes the symptoms are premonitory symptoms of parturient apoplexy. It exists moi'e in well bred animals than in others. DISEASES OK DOMESTIC ANIMALS. 199 Treatment. — Regulate the diet ; give good food ; give about eight ounces of Epsom salts and an ounce of saltpetre, dissolve in a quart of water, and follow it by a few doses of diuretic medicine. If the udder is swollen and hard, foment and hand-rub it, and, in some cases, use some simple ointment, as calamine ointment ; stimulants are generally unnecessary. If it continues too long, give a few doses of iodide of potassium. It is a simple febrile affection. Give but little food for twenty-four or thirty hours. Pu»'pliral Fever, of which there may be different kinds — a par- turient peritonitis, in which the peritoneum and uterus are inflamed, and, perhaps, the large nerves of the parts involved. Another serious condition is that in which the brain is the principal seat of the dis- ease, but the spinal cord is involved. This is called parturient apop- lexy. There is another form in which the spine is the principal seat of the disease, and the large nerves going from the spine to the poste- rior extremity of the body are affected, causing loss of power, and in post mortems there is sometimes effusion into the peritoneal cavity. I will first speak of Parturient Peritonitis, but the inflammation is not generally con- fined to the peritoneum alone, but it also affects the uterus, and we have a low fever, and in post mortems we find diffuse inflammation of the peritoneum, and more or less in the uterus. The vessels going to and coming from the uterus are affected, and the nerves are thickened to a certain extent. It may occur at any age and follow any case of parturition, but it is generally the result of bad usage, either before or after parturition. Animals exposed to the cold, or having been driven, are more liable to it. Symptoms. — It usually shows itself the second, third or fourth day after calving. The supply of milk is impaired more or less ; the urine is coffee-coloured, and it usually attains its intensity in from six to ten hours. The symptoms are somewhat like parturient apoplexy ; she paddles with the feet when walking ; looks at the sides ; lies down, and, in some cases, is not able to get up — (when a cow becomes affected by urinary or abdominal diseases she is generally very helpless) — she will moan, stretch out the neck, lift the head and look at the flanks ; respiration increases ; the mouth, muzzle and horns hot, and the temperature of the body is increased ; constipation is present, and if any feces are passed they will be hard and covered with mucous ; and there may be a discharge of a brownish-coloured fluid from the vulva ; power is lost, and you are apt to think it is apoplexy. But there are no cerebral symptoms developed, and there is more pain present. It is a very fatal complaint. Treatment. — Give sedatives and opiates. At one time purgatives were recommended, but I do not use them as freely as I used to do, and do not recommend giving large doses of purgative medicine. But it is good to give a slight laxative, and opiates do not act so well in cattle, but give opium and belladonna. Some recommend blood- letting in the early stages ; but if the cow is down, and effusion has taken place, blood-letting should not be practised. Attend to the care of the animal, and get her well on the breast, and if the bowels are costive give injections, and if feces are passed freely it seems to give relief. Draw the urine with the catheter if it does not come away. Use counter-irritation, which must be stronger for cattle than horses, and sometimes use a little croton oil. Sometimes this prevails as an enzootic disease, due to the manner in which they are kept and the weather. 200 CAUSES, SYMPTOMS AND TREATMENT OF Parturient Apoplexy. — This disease principally affects the brain and spinal cord, due, in most cases, to a congested state of the brain, in which it differs from parturient peritonitis, and, in some cases, it involves the sympathetic system, which has a great deal to do with certain diseases, and it may be influenced in various ways. There are various theories brought forward in regard to it. It was thought to be due to a specific poison in the blood, which would produce the dis- ease in other animals ; it is also said to be due to the arteries of the brain in cattle differing from those of the horse. But these are not tenable. Another is that the sympathetic system has something to do with it. This is tenable. When a cow is in good health and the secretions going on in a natural manner, parturition is easily accom- plished, and there is a large amount of blood in the system which is to go to the milk, and, instead of going there, it is thrown back upon the system, to a certain extent, influencing the sympathetic system. It is due, generally, to a plethoric condition — those affected are those in perfect health. Prof. Williams' theory is a good one (Williams' Veter- inary Medicine, page 462). Post mortems usually reveal lesions of the brain and spinal cord. There is, even, effusion into the ventricle some- times, and the spinal cord is sometimes reddened. There are other conditions, but they are generally incident to the condition of the ani- mal before death. There may be hypostatic congestion of the lungs or liver. The most noticeable characteristic is the rapidity of its develop- ment. An animal may appear in perfect health, and be dead in four or five hours. It appears from the first to the third day after calving, and the sooner it appears the more fatal it is. Another peculiarity is, it seldom or never follows an abortion, while parturient peritonitis does ; and it does not occur in very young cows, but is most likely to attack a cow in her prime It follows difficult parturition, when force has been used, or where there was hemorrhage from the womb, and seldom occurs in an animal in poor condition. Symptoms. — Perhaps the first noticed is, the cow does not give as much milk as she should ; the urine depressed and the bowels con- stipated ; fever takes place, and all the secretions are affected, and perhaps there are no other symptoms, and if you are called to a case in which there is not the milk expected, and the above symptoms, then look out for it, and give something to prevent it. There may be but little pain, and the thermometer will reveal a slight increase in temperature. When the well-marked symptoms appear the cow moves first one and then the other leg, paddles, as it is called, when she walks, lies down, gets up and lies down again, until, perhaps, she can not get up ; then, perhaps, dashes the head violently, throwing it up over the shoulder, which seems to be a favorite position ; then she may, perhaps, become comatose, the pupil dilated, and the breathing stertorious ; the pulse forty, fifty or sixty, and almost imperceptible ; there is but little feeling, and death soon occurs. In other cases the symptoms are not so rapidly developed, and such are more easily treated. It is generally easily diagnosed, but you may make a mis- take in the early stage of the disease. Treatment. — There are many remedies recommended, and, I think, in the early stage, before the animal gets down, that abstraction of blood is beneficial ; but there is difference of opinion here, therefore I recommend taking blood, and, as well as that, give a pretty good dose of purgative medicine — from one to two pounds of Epsom salts— and give injections ; but if partially or completely comatose, do not take blood, but give stimulants — as sweet spirits of nitre, nitrate of potash, DISEASES OF DOMESTIC ANIMALS. 201 etc., and a dose of purgative medicine ; give injections ; draw the urine ; turn her from one side to the other ; bed well and make her as comfort- able as possible, and if comatose, put cold water or pounded ice to the head. Tieat the same as sun stroke. A case may recover after being comatose for five or six hours. While comatose you must be careful in giving medicine, for it may pass into the trachea and cause suffo- cation. In such cases, try the stomach pump, or the small tube, and get stimulants into the stomach, or use hypodermic injections of ether, etc. In the early stages give bromide of potassium in pretty large doses ; keep cold to the head, and inject freely with soap and water ; keep her clothed, and attend to the general comfort of the patient. If the animal shows signs of recovery in about twenty- four hours, feed sparingly, and give nux vomica if the nervous system is affected. It is easier prevented than cured, and if a cow is so affected and cured, she is more liable to be affected again, and if in any cow you suspect it, restrict the food before parturition and give one-half or pound of Epsom salts, and give diuretics or hypo- sulphite of soda. This sometimes occurs before parturition, but not often, and is easily prevented. Do not give much food for some time after parturition ; do not even allow her upon luxuriant pasture, but turn upon a poor pasture. Croton oil, calomel, etc., have been recommended, but I do not think they should be used. Parturient Paralysis makes its appearance about the third or fourth day after calving, and it is not so serious as apoplexy. The spine is sometimes affected, and sometimes just the large nerves. Loss of power is the principal symptom. There is paddling action ; the animal falls or lies down and can not get up ; perhaps the secre- tion of milk is impaired ; if you prick her with a pin there will be sensation but no motion. Regulate the diet ; give a laxative ; stimu- late the loins with the ammoniacal liniment, mustard, etc. An old and perhaps a good way is to cover the loins with a blanket, and take a warm smoothing iron and rub over the outside. If it continues too long, use the galvanic battery, and, in some cases, afte* live or six days the animal will get up as well as ever. Or she may knuckle at the fetlocks for some time ; then try strychnine, and apply a strych- nine liniment to the loins — but not too much at a time, or you may cause poisoning. Mammitis, Inflammation of the Udder, Garget, etc, is inflam- mation of the mammary glands, which may occur with other diseases, as from inflammation of the womb, irritation of the stom- ach. It occurs usually in the milch cow, but it may occur in the heifer. It occurs in two forms, which differ some from each other, but I do not know that the treatment differs much. In one form the skin and membranes under the skin are affected ; in the other, the glandular substance is affected. It may be circumscribed, or it may extend and involve the deep-seated structures. Symptoms. — The udder is hard, hot and tender, and is accompanied by constitutional fever, which is, in many cases, ushered in by shiv- ers ; the animal begins to breathe rapidly, and you might think it was some disease of the respiratory organs ; the pulse is quickened ; the appetite more or less impaired, and cessation of rumination ; the bowels may be constipated, or there may be diarrhoea, but the febrile state of the system is apt to produce constipation. But some irritant may be present, and may have had something to do in causing the dis- ease. When this disease involves the deep-seated structures, suppu- 202 CAUSEH, SYMPTOMS AN1> TREATMENT OF ration and a scirrhous condition are produced, which destroy the secre- tion of the milk. Causes. — Irregular milking is a common cause, which irritates the glands and causes inflammation. It is also produced by changes of temperature, exposure to colds, etc., and sometimes results from par- turient apoplexy, due to the manner in which she lies, pressing upon the udder, etc., or it is due to the sudden changes in temperature, as the hot days and cool nights of September ; standing in wet, dirty stables ; exposure to wet, etc. Inflammation of the glandular substance may terminate in resolution, but it is likely to terminate in resolution, but it is likely to terminate in ulceration and destruction of the gland ; but if it is circumscribed and is opened in time, it may impair it but little. A common termination is fibrous degeneration or scirrhous condition. Treatiuent. — If in the early stage, give two or three ounces of nitrous ether, with one to one and a half ounces of nitrate of potash, followed by aconite. Use warm fomentations and keep them up for some time, then dry well and use the camphorated liniment ; or you may put a bandage to the parts, having holes for the teats ; pad it with wool, cotton, etc., and pour in warm water. A hot poultice is an old and very good remedy, but in cold weather poul- tices, etc., are not best, but apply liniments, and wool, tow, etc., warmed at the stove and applied to keep heat in the parts, should be used. Some use cold water, but I think warm is preferable — better to relieve pain— and if the pain is very great, use anodynes, as belladonna, laudanum, arnica, etc. If it has terminated in sup- puration it is best to let it out through the teat by means of an ordinary concealed bistoiiri, by pushing it up the teat. But if it is circumscribed and points, open at the prominent part. Sometimes a part becomes scirrhous or gangrenous, and it may be necessary to remove a part of it. Have the animal well kept ; give tonics if the animal is weak. It is necessary to milk the cow occasionally, which adds to the irritation, but you may overcome this by means of a teat siphon, allowing the milk to drain off. If there is a slight induration, without much change, then use iodine ointment, and possibly iodide of potassium internally. AZOTURIA, ETC. Azoturia, Partial Paralysis, is a dietetic disease, a hypernitro- genous condition of the blood, and of the system generally. There is partial or complete loss of power of the hind limbs, although the nerves are not altogether affected ; but it is due to spasms of the muscles of the loins and the tissues in connection, and affects the kidneys more or less. It was called hysteria, and was supposed to be peculiar to mares only. Another term is enzootic htematuria ; another is hajmogloburia. It attacks a horse that has been working, then stood in the stable and fed well upon nutritive food, which pro- duces a large amount of albumen in the blood in particular, and in the system in general ; and then the horse is taken out and exercised. The result is an increased oxidation of the albumen, and it is changed into various compounds, causing an excess of urea and hippuric acid, producing spasms and contractions, especially of the large muscles and tissues of the loins, producing loss of motor power. And when it attacks the psoas muscles it is more severe than when it attacks the DISEASES OF DOMESTIC ANIiFALS. ZUiJ gluteal muscles. This condition extends further than the muscles, in some cases, and in some cases even the covering of the spinal cord may be affected, the sheathes of the nerves and the kidneys also, arresting the secretion of the kidneys in the early stage. The faster the work the more serious will be the attack. It is more common in the winter months, as the animal is kept in the stable, well fed, for a time, then taken out and worked. Symptoms. — Suppose a case : A horse is taken from the stable and trotted out half a mile to three or four miles ; he becomes sluggish, perspires more freely than he should : then well-marked stiffness appears in connection with the muscles of the loins. If stopped, the breathing is noticed to be increased, the pulse quick and weak, and the loins, in many cases, are hard and tense ; the bowels, in some cases, aretympantic. In aggravated cases the symptoms become more severe ; he drops on the hind quarters, staggers, and perhaps falls ; he may lie down, get up and lie down, etc., until he is not able to get up any longer : or he may suddenly falter during a drive, as if he had picked up a nail. But if the above symptoms are also present, and you are informed that the horse was standing in the stable for some time, it is likely to be azoturia. The ears and legs cold, pain in the parts, and colickly pains. But in some cases the symptoms are not so well developed, and if allowed to stand fifteen or twenty minutes it will show itself by stiffness. The urine is of a dark red colour, and contains an excess of urea, and, in some cases, albumen. If the urine is allowed to stand, a sediment is thrown down, and nitric acid will precipitate nitrate of urea. Azoturia is often mistaken for inflammation of the kindneys. Post mortems reveal the muscles affected— soft and flabby, of a darkish red colour — the kidneys slightly congested ; there is dark urine in the bladder, and hypostatic congestion, which is, perhaps, due to the position the animal has occupied. If the animal is properly treated in time the symptoms will disappear in from four to ten hours, and in two or three dajs the animal will be well. Your prognosis will be based upon the severity of the symptoms. If the animal is unable to rise, there is great pain, the pulse quick and full, it is unfavourable. I believe it is sometimes combined with irritation of the bowels ; but although the patient is down, and the pulse is not full and bounding, but just quickened some, and no great pain, the prognosis is favourable. Treatment. — In an ordinary case I recommend a slight stimulant ; give sweet spirits of nitre ; cover the body well and induce copious per- spiration, and give a good dose of purgative — from six to twelve drachms of aloes — and give injections ; apply counter-irritation to the loins. Some object to this, but I think hot water is beneficial. Immerse a blanket in hot water and place it over the loins and cover it with dry blankets. Or, if you cannot apply this, take a liniment and rub in as a shampoo over the loins ; or mustard may be used, but do not use any- thing that will blemish ; and, if necessary, draw off the urine, which is often retained in the bladder. After treatment, carefully use sedatives — aconite and carbonate of soda. There is great thirst and the animal should have plenty of water, in small amounts at a time, with, perhaps, ju;t the chill taken oft", and keep the animal as comfortable as possible, and turn him from side to side as necessary, and, where there are signs of amendment, try to get him upon his feet, even if he only stands fifteen or twenty minutes. It is best to take the shoes off if the animal is kick- around much ; and, in some cases, you may use slings. It is a disease that is generally satisfactory to treat. If a horse was stopped and not driven any further, when the symptoms are pieseut.it would notgfnerally ^04 CAUSES, SYMPTOMS AND TREATMENT Of become serious ; but I do not know whether the horse, after recovering, is more liable to another attack or not ; but when recovering, and the appetite is good, if he is allowed to eat too much, it is more apt to return. Nitrate of potash is another remedy, but I prefer one to one and a-half ounces of carbonate of soda each day for several days. Blood- letting is recommended, and, if taken in the early stages, it is, possibly, beneficial. Sedatives are not demanded if the pulse is weak and amrao- niacal stimulants are not generally advisable. Do not push opium too far, but if there is much pain give belladonna or hypodermic injections of morphia, and, unless the animal is suffering great pain, do not give opiates. I saw a case combined with spasms of the diaphragm. This proves serious. Give anti-spasmodics ; the other treatment is the same. When he lies down the spasms are increased, and respiration is more difficult, and death may result from asphyxia. Metritis, Inflammation of the Uterus.— In the mare this is in- flammation of the substance of the womb — it is endo-metritus when confined to the lining membrane. It is usually a sequel of parturition when prolonged, or where force has been used. But there are other causes — as exposure after foaling, lying on damp ground, etc., and these are common causes of it when it is not due to parturition. Symptoms. — It usually occurs in three or four days after parturition. There is uneasiness and pain; the back is arched--straining— and, in some cases there is a dark red fluid passes from the vagina. In some cases she will lie down, moan, and occasionally cast anxious glances to the abdomen ; the pulse quick and wiry, the mouth hot, the ears cold or alternately cold and hot ; cold sweats, perhaps, appear behind the shoulders and in the flanks, and the vulva may be swollen ; the urine is passed often and in small quantities, and the symptoms may be more aggravated, apd the animal may die in two or three days. This disease may extend and involve the peritoneum, but not so apt to do this as in cows. Treatment. — Allay the action of the heart by Fleming's tincture of aconite, ten to fifteen drops ; combat the pain by opium or hypodermic injection of morphia, and keep her comfortable ; if cold, clothe nicely ; counter-irritation to the loins is recommended — as mustard, hot cloths, or a newly -flayed sheep-skin ; but do not keep the sheep-skin on too long, perhaps twenty-four hours will do, and keep the parts warm after taking it ofi'— and give injections. It is also recommended to inject the uterus, and you may put laudanum in the water. Give a purgative — ten or twelve ounces of oil, which is preferable to aloes. Treat it about the same as inflammation of the bowels. Keep her extremely warm. If there is a discharge from the vagina, inject first with tepid water, then with a solution of sulphate of zinc, or carbolic acid, one part to forty or fifty of water. Leuehorrhoeaj or Whites. — This is met with in old debilitated mares, especially after they cease to breed. There is a white, g'airy dis- charge from the uterus, which looks like curdled milk. It sometimes accumulates in the uterus and then comes away in large quantities, and there is a foetid smell ; the animal gradually becomes debilitated. Dis- ease of the ovaries may produce it, but it is most likely to occur from debility. It is common in well-bred cattle, and may be associated with tubercular disease in cattle. Treatment. — Use both local and constitutional treatment. First inject the uterus with warm water, and then with cold water — and one of the . best preparations is carbolic acid, about one to forty, which may, in some DISEASES OF DOMESTIC ANIMALS. 205 cases, be increased' I have used it as strong as one to sixteen, but do not keep up the use of this strong lotion, but after one injection use the weak solution ; give general tonics — iodide of potassium, iodide of iron, etc. Percival recommends acetate of lead, 1 drachm ; opium, 1 scruple : turpentine, 2 ounces. But the best, perhaps, is the iodide of iron, iodide of potassium, etc. In cattle, it is similar, but if it is associated with tubercular disease, the animal will be unfit for breeding purposes. Barreiiuess may be due to contraction of the os-uteri. Apply bella- donna, and dilate by means of the fingers and catheters. DISEASES OF THE OVARIES. Enlargemeuts— Ovarian Tumours are generally of an encysted character. They are more likely to occur in mares that have had several colts, but they may come in any from faulty conformation. Symptoms are not very plain. It may exist to a great extent without extending the abdomen. The mare is supposed to have slight attacks of colic, but the symptoms differ from some colic. The pain continues per- haps a half hour or an hour, the pulse is not materially affected, and the symptoms gradually disappear ; the mare is usually irritable, falls off in condition, and may have a tucked up appearance ; the tumour may pass around some of the intestines and cause strangulation — causing the ordinary symptoms of strangulation. If there is slight irritation in con- nection with the generative organs, and these symptoms are present, make an examination fcr rectum, and if it is any great size you can detect it. There may be a slight discharge from the vagina. There can not be much done by way of treatment in the mare. I would recom- mend iodine, iodide of potassium, etc., and you may deem it worth trying an operation, but it is not generally successful. Vaginitis is generally the result of difficult parturition. Give a laxa- tive and iodide of potassium, and you may use some slight astringent. Allay the irritation. Abscess on the Vulva, caused by some irritation. Open up and let the matter out. If she is in good condition, give a laxative ; if in poor condition, give nutritious food. Partial Closure of the Lips of the Vulva, may occur in the cow after difficult parturition. The lips may grow up until you could scarcely introduce the ordinary director. It is best treated by opening up, and, if seen in the early stage, you can do this with the fingers ; then use a pledget of tow to keep the lips from uniting. Allay the irritation ; apply lotions, etc. Ovariotomy. — This, like everything else, requires practice. It is frequently performed in pigs, by cutting into the flank on either side, remove the ovaries, secure the vessels and treat as a wound. It is best to get a dead animal and examine as to the position of the ovaries, etc., before operating on a living animal. Cattle are sometimes operated on They take on flesh more rapidly after the operation. It has been, and is still, recommended to splay milk cows four or five months after calving, and it is said that they will give milk for four or five years and take less food. It was advocated in Scotland some twenty-five years ago, but I think it proved a failure. But lately it has been practiced and recommended, especially in the southern part of the United States. One way of operating is to cut into either side, the same as in the pig. 206 DISEASES OP DOMESTIC ANIMALS. Another is to cut into the abdomen. The way it is now performed is to pass the hand into the vagina, dilating it carefully (but it cannot be per- formed until the animal is from six to twelve months old), make your incision through the walls of the vagina about one and a half or two inches from the os-uteri, get the fingers through and get hold of the ligament of the ovaries and pull them down and remove them. The ecraseur is, perhaps, the best mode of removing them. First examine a dead animal and operate for experiment. The ovaries were removed from a mare by one of our students, and she lived for several days, and was getting along nicely, when she was taken to the dissecting room. Perpetual Bulling is due to an abnormal condition of the ovaries, and, in well-bred cattle, to tubercular disturbance. The best treatment, perhaps, is ovariotomy. It sometimes occurs in the mare. A good seda- tive, in some cases, may allay the irritation. The Clitoris may be enlarged or lacerated, due to irritation of some kind or other. Use local and constitutional remedies ; touch with nitrate of silver, carbolic acid, etc. If there is an enlargement remove it. Melanotic Tumours may be present, especially in a white mare They are a kind of black tumour, and may be in other parts also. 208 CAU8E8, SYMPTOMS AND TREATMENT OF w < H W CO O Q £ (0 cd be C '> 5 -l?» ^ »0 JO sd -jq 00 B CO ro iO <^ =-! 3 -2 'O o 5^ . 3^ la fH CO o o rH J,-( a o o o -2 etc 54-: S ® o 00 sq lO HH „ TS "^ n3 J & O -* ^ rH . CO '^ «o rrs . -. EH a - o a <^ ® • — . fc. § -^ s -^ & -g ■4^ w "2 OJ 'S OS 02 O 1-^ DQ M H 2 " O o s a a ^^ ^ ^ ^ a ^ -^ 30000 o o "^ ■*^ o rHi-HOT-l(3qTH(M'-t-"iHCC^ So a O O O O " o ■t^ -M -^ ^ -»^ -ka B 55C a s- p ns «- bc bc^ 00 X tH 1-1 05 1-t o -«^ ^ ^a -. 00 00 o -*^ o o o -^ -*^ ■' CO "-I II a I ^ I 3 O ® O fl4 .S ^ o a o o o fl_,o o^-S- jaxjajaooovHiH QOQOQOOPQ o 1-1 o ■M bo o -♦a 00 4 bc o 3 o 210 CAUSES, SYMPTOMS AND TREATJrENT OF a a S o 03 o Pi n3 o 1— ( CO a n3 CD J (*H O § r*H o w 13 -2 1-1 (n H -^ CQ '73 -tJ O |J 1-1 CO «< o o O •*^ -►^ WOO W ^ -M o n3 d o O CO ^ o o -*^ o o «0 CO is 5UD 6C •T3 'O !^ <*^ 6C r-( Tt< CO lO o o o o -u -M -^^ -»^ CO r-l (^^ rH ^ a O O ^ o -^ -^ o o -^ iO o .^ -^ CO rH 1-t "3 CO a 2 .W (>J '^ CO •^ "^ fl 2 o =<= •♦^ ^ o »o -^ o I ^ CO CO I o o o i -M -M .t^a O O O ' CO (>1 (M , o ; •T3 'W SfH ■ CO ""^ (M I O O o 1 ->a -»a .^ ; 1-1 CM tH ' tS rQ j^ CO CO (M P 5 o 4S ;3 5 5 S s .2 H W M Eh p!^ VS o 3 i' ® 2 CO 0^ 2 -2 i^ m (S e8 & O O **3 » O S s;^ § 1^ g C3 be fc. Jr be o ® ^^ 33- "^^ CO ^ o o *» •^ o (M r-i O CO -^t* o o CO (M o o a M ra r3 § 5^ 00 -5 S CO iH a >H »N -^ "C nS (S (M 00 ra o o ^ ^ '^ a- 'B, O 2?,a & o ^ o ?o cq o O o ^ ^ ^ o o o C^ CC 3>1 ^ Sq : bi) a f^' o ri; o o ^ q ^ o o (M r-i (M ;:5 |J «0 01 CO Q a;?v!M o o cq CO j'^?0(Xi'«* »H DO P P S _« X -a J3 '5 3* &< P4 'P •5 3 1 03 03 03 03 H DISEASES OF DOMESTIC ANIMALS. 213 ^ u ac o >^ f^ QC H o <7S 6C o 00 tH C^ «o r-^ t-t o s o o O - -is ■*s ■^ -M »o 2 >-> (^ »o > INDEX Abnormal Growths from Tracheotomy 27 Abscesses 17 " of the Turbinated Bones 17 in the Rectum 165 " of the Vulva 205 Albuminuria 180 Amaurosis 66 Anasarca 60 Anchylosis 80 Aphthae 149 Ascites 167 Atrophy of the Brain 48 Azoturia 202 Barbs 148 Barrenness 205 Biliary Calculi 174 Bile Stones 174 Bladder, Sabulous Matter-in 183 " Cysts in 182 " Inversion of 183 " Paralysis of i84 Blood, Composititon of 5 Blown 167 Bleeding of the Nose 19 Bone, Disease of 79 Bony Tumours 48 Brain. Softening of 48 ' ' Atrophy of 48 ' • Bony Tumours in 48 " Hypertrophy of 48 Melanotic deposits in 48 Breakdown 119 Broken Wind 25 Bronchitis in Horses 24 " in Cattle 29 Filaria in Cattle .*. 29 216 INDEX. PAGE. Bronchocele 17 Bruises of the Feet 138 of the Knee 117 Bursal Enlargement in the Heck 129 Calks 136 Calculi 181 Biliary 174 " Salivary 152 " Urethral 183 Canker 135 Capped Elbow 114 Hock 127 Caruncula Lachrymalis, Enlarged 70 Caries 80-85 Castration 184 Castration, Results of 186 " " Adhesions 186 " " Amaurosis i8g " Champignon 187 " Glanders and Farcy 189 Hernia 187 Peritonitis 188 " " Scirrhous Cord , 187 Suppuration ." i86 Tetanus 188 of Originals 189 Cataract 65 Catarrh in Horses 15 in Cattle 27 Cerebritis 45 Cerebral Tumours ■. 48 Cerebro-spinal Meningitis 52 Choking 1 50 Chorea 53 Colic, Flatulent 156 " Spasmodic i55 Collar Galls 113 Concussion of the Brain 47 Spine 48 Congestion of the Lungs 19 Conjunctivitus 62 Costiveness 160 INDEX. 217 PAGE. Constipation i6o " in Cattle 171 Contagious Diseases 70 Contraction of the Back Tendons 118 " Sheath of the Tendons 119 Convulsive Ergotism 54 Cough, Chronic . . • • 18 Coronitis 132 Corns 133 Croup 17 Crusta Labialis 40 Curb 128 Cystitis 180 Cysts in the Bladder 182 Deafness 78 Diabetes Insipidia 178 Diaphragm, Lesions of 26 " Rupture of 27 ' ' Spasms of 26 Diarrhoea 160-161 " in Cattle 171 Disease ; 3 Dislocation of the Fetlock 122 Patella 124 Diseases of the Air Passages in Cattle 27 Diuresis 178 Dose Table 208-213 Dropsy , 167 Duramater, Thickening of 48 Dysentery 162 Dyspepsia 154 Ear, Diseases of 78 " Canker of 79 Ectropium 68, 69 Eczema, Simple 38 Rubrum 39 Ejection 169 Elephantiasis 59 Encephalitis 43 Enchondroma 83 Enlargements on the Shoulder iii 10 218 Entropium Enteritis in Horses " in Cattle Enuresis Epilepsy Epistxis Eye Eversion of the Eyelids False Quarter Filaria Oculi Fistula " of Stenos' Duct Flux Fractures Fracture of the Acetabulum " " Astragalus " " Basilar Process of the Occiput " " Condyle of the Femur " " External Orbital Process " " " Tuberosity of the Femur " Femur " Fibula " Frontal Bones " Humerus •' Hock " Knee Joint " '* Lower Jaw Metacarpal Bones Navicular " Nasal Bones Occipital Bones *' " Oscalcis Olecranon , Oscorona " " Ossuffraginis , " Ospedis , Parietal Bones " Patella " " Pelvic Bones ■" " Posterior Iliac " Pubes and Ischium *' " Sacrum " " Shaft of the Ilium , INDEX. 219 PAGE Fracture of the Symphysis Pubes 88 " Tibia 91 " " Trochanter Major gi Tuberosity of the Ischium 89 " Zygomatic Process 93 Fraenum Linguae, Injuries to 147 FragiHtas Ossium 82 Fungus, Bleeding or Cancerous 66 Fungoid Growths in the Bladder 180 Garget 201 Gastro Enteritis 152 Gid 51 Glancoma 68-70 Glanders, Chronic 74 ' ' Acute 76 Glands, Parotid 151 Glossitis 148 Grain Sack 168 Grease 37 Gut Tis 167 Haemoturia 184 Hair Balls 169 Head and Neck, Diseases of 105 Hemiplegia 49 Hemorrhage of the Lungs 19 Hepatitis 172 Hernia 162 Diaphragmatic 165 Scrotal 163 Umbilical 164 Ventral 164 Hoven 167 Hydrocephalus 5° Hydrocele i8g Hydrophobia « 55 Impaction of the Rumen 168 " " Manyplies i6g Imperforate Anus 166 Injuries to the Abdomen no " " Axis 85 " Back Tendons 118 Cervical Vertebrae 83 220 PAGE. ■ 206 86 113 123 ■ 109 106 105 115 87 Pectoral Muscles i lo-i 13 Injuries to the Clitoris " Dorsal Clitoris . . " Elbow Joint " Gluteal Muscles. . " Groin from being Halter Cast . . to the Head and Neck . . Knee Joint Lumber Vertebrae Perinaeual Psoae Muscles Semilunar Cartilages Shoulder Joint Tendons of the Knee Indigestion, Acute " Chronic Inflammation, Signs of ' ' Definition of of the Bladder " Involving the Pleura of the Hip Joint " Kidneys " Hock " " Liver Lungs Inflammation of the Membrana Nictitans Palate " " Pharnyx " . " Trachea " " True Digestive Stomach " Udder " " Urethra " " Testicles Influenza Interfering Intestinal Concretions Intussusception Inversion of the Eyelids Ischuria Jaundice. Kidneys Inflammation of no 125 125 112 116 152 154 9 7 180 22 122 177 125 172 21 68 149 149 27 171 201 201 189 29 121 159 159 69 179 173 177 177 INDEX. 221 PAGE. Knee Sprung . .' 121 Knuckling 121 Lachrymal Ducts, Disease of 69 Malformation of 69 Lampas 144 Laminitis, Acute 131 Chronic 132 Laryngitis in Horses 15 Cattle 28 Leucorrhoea 204 Lice, Poultry 43 Lips, Laceration of 148 Liver, Diseases of 171 " Atrophy of 174 " Congestion of 171 " Functional Disorders of 174 Inflammation of , 172 Rupture of 173 Scirrhous Induration of 174 Lymphatic System 58 Lymphangitis 58 Mallenders 39 Mange 41 " in Cattle 42 " in Dogs 42 " in Horses 41 Mammitis 201 Megrims 47 Melanotic Tumours 206 Melanotic Condition of the Eye 70 Metritis 204 Milk Fever 198 Mollifies Ossium 83 Mouth, Diseases of 148 • ' Foreign Bodies in i47 Mud Fever 3^ Myopia 7° Nasal Gleet 16 Polypi 17 Navicular Disease 138 Navicularthritis 138 Necrosis 81 '222 INDEX. PAGE. Nephritis 177-17S Nervous System 44 Nettle Rash 39 Oesophagus, Stricture of . 150 " Dilitation of 150 Open Joint 116 Ophthalmis, Periodic 63 " Simple 62 Organs of Respiration 14 Osteo Sarcoma 81 '•* " in Cattle 95 Osteo Parosis 95 Ostitis 79 Osteophytes 100 Over-Reach 1 36 Ovarian Tumours 205 Ovariotomy 205 Partial closure of the Vulva 205 Paraphymosis 190 Paralysis 49 " Partial 202 of the Lips 50 Parturition 193 " Presentations in 194-198 Diseases after 198 Parturient Fever 198 " Apoplexy 200 Paralysis 201 " Peritonitis 199 Penis, Injuries to 190 " Excoriations of 192 Paraphymosis of 190 Phymosis of 192 Peritonitis 188 Perpetual Bulling 206 Pharyngitis in Cattle 28 Pharnyngeal Polypi 1 50 Phlebitis 107 Phymosis 192 Pink Eye or Epizootic Cellulitis 31 Pleurisy 22 " Results of 23 Pleuro-pneumonia in Horses 24 INDEX. 223 PAGE. Pleuro-pneumonia Contagiosa in Cattle 72 Pleurodynia 26 Pneumonia 21 Poll Evil 10.5 Polyuria 178 Pumiced Foot 132 Pricks 135 Puritis 40 Protrusion of the Rectum 166 Ptyalism ... 152 Puerperal Fever 199 Punctures 134 Purpura Hemorrhagica 32 Quittor 137 Rabies 55 Rickets 82 Ringbone 99 Ringworm 43 Roaring 18 Rot in Sheep 174 Rupture 162 of the Colon 165 " Rectum 165 Saddle Galls 109 Salivary Glands 151 Sallenders 39 Sand Cracks 1 36 Scab in Sheep 42 Scours, White 170 Scratches 36 Scrotum, Diseases of 190 Sesamoiditis 120 Sheath, swelling of 60 Shoulderslip no Sidebones 100 Seedy Toe 13S Slavering 152 Sore Shins . 98 Spasms of the Larynx 19 Spavin, Bone 1 00 " Bog 126 Speedy Cut 116 Spleen 175 224 INDEX. PAGE. Spinitis 48 Splenic ApoplexN' 176 Splenitis 175 Splint 96 Sprain of the Metacarpal Ligament iiS " " Back Tendons 118 " " Flexor Tendons 118 " " Gastrocgnemis Muscles 129 Hock 129 Inferior Sesanoid Ligament 120 " Metacarpal Ligament 118 Muscles below the Stifle 125 " " Vastus Muscles 125 Spring Hock 127 Stiffness of the Neck and Back 108 Stomach, Diseases of 152- " Rupture of 154 Stomatitis Contagiosa 41 Strangles 33 Stricture of the Intestines 159 String-halt 51 Sturdy 51 Strongy lus Equinea 67 Sunstroke 46 Sweeney no Tabes, Mesenterica 59 Teeth 141 Irritation of 144 " Caries of 146 Testicles, Inflamation of 189 Testicles, Dropsy of • 189 Tetanus 56 Thickening of the Membrane of the Nose 18 Thoroughpin 126 Thrombus 108 Thrush 133 Thyroid Glands 17 " Hypertrophy of 17 Tongue, Injuries to 147 Tread 136 Tuberculosis in Cattle 28 Tumours in the Nose 17 Tympanites 167 INDEX. 225 PAGE. Ulceration of the Arytenoid Cartilage i8 " Tibia 129 Urethral Calculi 183 Urethra, Inflammation of 192 Stricture of 192 " Ulceration of 192 Vaginitis 205 Variola 70 Equinea 71 Vaccinea 72 Vertigo 47 Villitis 132 Volvulus 1 59 Vomiting 169 Warbles in Cattle . . 44 Warts 40-191 Windgalls 122 Wolf Teeth 147 Wounds, Definition of 103 %j^; J^ JAN 1 1 201 JUN82 N. MANCHESTER, INDIANA 46962