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Les diagrammes suivants illustreht la m^thode. 1 2 3 4 5 6 A I ShciY ^XiQ Toronto Pi Reference THIS BOOK MUST NOT SE ., > V- ^^•>e! n/ ji) \/ r LECTURE ON YEN TIL ATT OK; PELIVERKI) ItCFORS TUB COBOURG tt^wm/ ln\Mh ON MONDAY EVF.NING, FEB'Y 22, 1858. || »Y HENRY RUTTAN, , »---x--^"^-^-«'"<«"^ C OBOURO : I'RINTKD AT ThiB •'« CoBOURG SUN " OFFJCt. 1858* :/M; '9«i4 ««>«««#) >wjj*«'2r3j*Mf»»j*tj s fl '' Si; -.< LECTURE ; • OH VENTILATIOl^; DELIVERED BEFORE THE COBOURG Mttimu' inlikk. ON MONDAY EVENING, FEB'Y 22, 1858. BY HENRY RUTTAN. cl upon founda- >y which 11 asotli- ne time, endered er, and air, to Ithy at- 'e been s been ' speak, 3f Ven- > books ot gen- hut as have latural ith, so open- id the actual ssible } ' desire for knowledge upon the sub* ject promoted. In awakening this desire, I have the satisfaction of believing that I have contributed my share, and trust that with the blessing of providence I may yet be permitted to see the day when our Architects and Mechanics will be compelled so toconstruct our dwellings, and school houses at least, as to arrest the further progress of this awful disease, which is so increasing in frequency and virulence, that un less checked, itwill, ere long, become absolutely epidemic in its charac- ter. It would, indeed be a libel upon any intelligent community to suppose that being once convinced that a remedy for this great scourge may be had, its members would not immediately take measures to escape it ; and my en- deavour to-night will be to persuade you that the prevention, at least, of this disease is possible, and in order to do this, as it is a professional ques- tion as well as a practical one, and, moreover, as a prophet hath no hon- our in his own country, I shall make no apology for drawing largely upon professional men, in order to prove to i you by competent \vitnes8e«» ih^ aJl w?o have nn ,°"^'' know (which deeply felnhlf V "''^'^e should tyffo^di;e'd"a;tT;ssiir?- sustenance here i«vhichcanSr':'-':'iY?r'^ that we onnnr^f o • ^"^ further icaiTh^rirrsr'iSf '''r vene His laws whhfmp^^n^ '"p"""" ishment will a« r^^w, • T j- ?^' *^""- contravendon L f, '^'"^^ ^°"°^^ ""is day's observati-on hit fh^' ^-""^ "^"^^ FoofrTa/tTbr^bifht &'''' the understand I nrf P^^^^^^ home to knowre'd"Sj'!'h'-'"''^'"?^'^^'^-« ^- the mSrefin hand' ',h " ^'•°t«hat in imoure «;, , .f "d— the breathing of S s, ^^e Tre no? " ^^"-g^ -d laws offfim V.K °V'^°"''^^'''^'"& the supplied u^'a^^^Xr'r-^'r!'^ ont sustenance— bv^fi! material for i"ue wajis this ocean of at- L •«> the po- 't only rxe- >w (which ^gJy read ^ve should ' Ahriigh- ^ ior our Ma/ only d further the phys- I contra- Y' Pun- low this ^e as in m every true as -e, and I trongest ome to ^e truth we ac- that in ling of fgs and ng the itifully rial for mt by i of at- 1 I mosphere provided expressly for this purpose — I admit that it is neces- sary that we should have houses to dwell in, but then, inasmuch as we have been endowed with reasoning faculties, by which, notwithstanding these walls, we may have a full sup- ply of this precious material, and have made no use of these faculties, we are virtually "guilty of the law." Until we so construct or adapt our dwellings as to make them breathe — that is inhale pure, and exhale foul air, we can never expect health. It may seem strange to you that not- withstanding all my labours and ex- ertions, there are yet only 5 or 6 Ar- chitects in the Province, and, I may add, in the world, who can be en- trusted with building for Ventilation, and I am happy to say that one of these is a resident of a neighbouring; Town. Having made these necessary pre- liminary observations, and feeling that, notwithstanding my desire to avoid becoming tedious to you, I shall be obliged to draw largely up- on your patience, I proceed at once to the subject. Ventilation is of twn lr;«^ n* any ordin«r,.;l r^y^^a the means of ri™o„ by „.,„„,„„»•» "»• cr. >.neou, „, „,„., vSlill 1 if "• lied m. Thi, ivoald „ViS ^ "" PV the timo ^/- ,V' ^^*^^i occu- Chan cs and nrnnt/^ i "^^^"^ ^o me- fore whom, ^a? somi r^f ° ""'j^' Ke- shan have much tZuTTn 1^^' ^ fiingit. i^»ea3ure m discus- i /■i$^'k ^inds, Me- or natural. carried on as that in ons,andin oth in Eu, leVentiJa- i^eans of ^lachinery le Steam while to ' minute ?ntilation ^g its op- means of that its ^e ques- ^, it is, hat car- •esent to h spon- t is car- ^ occu- le .iture, sting to to me- »Jy, be- ime, I liscus- 9 There are three general heads, un- der whrch the whole subject of Ven- tilation may be arranged for consid- eration. 1st. The necessity of Ventilation. 2nd. 1 he reason why we do not ven- tilate. 3rd. The modus operandi, or man- ner and means by which Ventila- tion may be carried out. That which I have deemed the most useful for this occasion is the first head, viz : The necessity ol Venti- lation. How wonderful is the order of Pro- vidence that that material, which is the most necessary and precious to the animal and vegetable creation, should be supplied in the greatest abundance ! It has been well said that whilst one can live several days, som'^times weeks— without food, no one can live three minutes without air. Mr. Jackson of Edinburgh says. — " The atmosphere is an invisible, ae- riform fluid, which Avraps the whole earth round to an elevation of about forty-five miles above the highest mountains. This great ocean of air, as we may call it. is far frnm VkO i 11 Of ff I ill ■ 10 «ea it is m^st dense t' ^'^"^ °^ 'h« °f the pressure above ''°»^''^q"ence tfiw is it at the he! Jhf r ^^^ ' ^"^ so as for instance atVh^ °^ ""'^^ """es, Blanc one of the Alt T'^i* "^^fonl as there performed wft'h''' ^'^^'^ing ty. Beyond tW i^ ^ ^?'"^ clifficul! density ^ofXSreiX^ '^^^''^^ 'he ^«ii, and at the eJev./- "^^. ^^ ^in^in- ty-five miles is bl wT, "^ ^^ont for- " So dense are the f *«™inate. portion to the hio^her i! • '''^'' '"^ P'o- one half of th" tnr 'T°''^' 'hat the below t.he he St of :? ''°^^ ^^ ^« i« other half bein^ exLn^'^ •'"'^'«' *he "7 of upwarls ofCf''j'«,f vol- I have thought ;, ^ lilies.'' before you in fh! "f"^"««^ 'o brin^ t"de of this ocean T^ """^SnU «f'ength, in which wel- ^'^'"^ ^°d ^^ny in the middle of h'' '"^ ^'^^ century, are i^noram nf .^ "'"^'^^"th ^hieh we maf rv^?, ^^ the means by advantages ^ ^"^ ourselves of iti th«t i' ^^ ^"''^ '''ear" says n^ o • , ■♦^«'«oc.etyiseo„struc,Ton'':-if 'onghont its ^vel of the ^nsequence ^S) or in any ^y the air se ; and so ifee miJes, ^it of Mont breathing le difficul! eights the to dimin- abont for- -rminate. J in pro- that the ^^ air is i^es, the o a vol" s." to bring magni- h and ^fi yet, ^teenth ans by ' of its Reid rrone- U ous principles, as erroneous, indeed, as the architectural arrangements and structure of the houses of its mem- bers. Both are built up without refer- ence to health. It is also clear that its Bacred destiny must yet be fulfilled, although it is now on the wane, and tending to what would seem its final extinction. It must therefore be in its destiny to be regenerated, and this is now evidently practicable. Many causes of degeneracy have been point- ed out by late writers. Plans have been suggested for the removal of these causes, and many of them have been removed. This is cheering, but still, men, women, and children, and even the loweranimals, are year-, ly dying by millions for want of fresh air, and many other causes ; but the increase of those cause?* has hitherto more than counterbalanced the suc- cess of any attempts that have been made to remove them. Though the thread of human life is nearly as ex- tended as /ormerly, it has become alarmingly more tiny and delicate; and more easily snapped ; and though the human species have rapr icjly increased in numbers, their phys- 12 and the great hu\ Z ^^' 'g^orant, tic ; but itTs a, h "^.'"^'^'y apathe- ing that a Ve^oTution /" '^''^' ''^^^'- exertions, ho^^e4 w.Tk"'°"^' '^'^'^ ail legal ^naS; inliltiT'''''^ iess the neonlp n^/ "'enective, un- will notdo „nl ""u^"'- This they the benefit ofloT "^'^ "''derstanj tfJese thev w^l Measures, and ""•il they^ am .7* ""derstand cated physicaHv /,''"''ated— edu- educat^dTn e£„:J"^t*^'J '"^^aJly, ligiously, or in fh^! ^', ''"''^'^d «- ed to appreciate pure JtT ^''P'^*" until they have feame 1 ' '*""I^«™Ple, stood its value P Th 'fi !"^ '""^'''■ secured, the v^nff '"' ''"i^ *« be pined.isli^reir/bylTelr''^ S^'aJ^t^';.?^^^!!!'^ Jhe e„4y ' '•-• '-'^^ iiivincibie for- i;Mi#tl'; ^e almost as ^n of socie- ^t of all its their exer- ^ ignorant, ty apathe- '^id, cheer- ^mQ,nt has ^tions, and 3 useless, -tive, iin- This \hey nderstand ^rcs, and nderstand [ edu- niorally, 'ated re- 3d physi- e expect- 'X:ample, under- ep to be d to be feet sys- 'anatory d mind, ten per- energy >le for- 13 titude, warlike spirit, and chivalry of the olden time : to attain to this en- ergy without the wickedness and vanity, to which, when perverted, it gives rise. Then would we have gained the material out of which to elaborate a structure of society, of body and mind as perfect as is pos- sible in our temporal state. Then would we be in the fair way of achiev- ing the sanatory regeneration of the human race. Then our bodies, our minds, our houses, our cities, our communities, our whole social fabric would be, in the course of being, re- built on a sure foundation. " it has pleased the Author of nature so to constitute man that his body is dependent on the materials with which he is surrounded for nourishment and support, and in- fluenced by a number of agents, which never cease to modify the tone of his constitution throughout the whole period of his existence. They not only affect his animal frame, but, from the manner in which the living spirit is associated with the corporeal tenement in which it dwells, they equally influence his mental faculties. ^I'i^^eir just operation is essential to I 14 all the functions of life; but their undue, or unequal action, though not so exfreme as to cause death, may Jay the foundation of bad health and give rise to morbid impressions unfa- vourable tothe developementof pow- er, activity, and accuracy of thought Zi ^IT , '^'"""S *''=«<'' heat, iight, and electricity in all their changeful and fluctuating movements are ever modifying his sfnsations, at times communicating a buoyancy. elast,city,and gaiety of feeling,Vhich he can scarcely repress : while on other occasions he becomes the vic- tim of the fatal influence which they produce upon his system. But no agent exerts a more con- tinuous power on man than the at- mosphere by which he is surrounded. There is nothing, perhaps, that pre- sents a more wonderful combination of properties than is manifested in he endless variety of purposes which 1 leaves, ,n respect to*^ his own frame as well as in reference to the general economy of nature. He de- pends upon it for the breath of life -- It lorms the great 'onh„u,,» ..,•*„... Which all other nourishment ]::^ 15 - y but their fi, though not death, may health, and 3ssions unfa- nent of pow- Y of thought those, heat, all their : movements nsations, at L buoyancy, eling, which ■ while on es the vic- vvhich they more con - lan ihe at- urrounded. , that pre- >mbination lifested in )ses which his own nee to the • He de- i of life.— it issubori* dinate, and without which death im- mediately ensues. Noi only does the air act continu- ally whenever it presses on the sur- face of the body ; it is even brought into contact with the blood within the innermost recesses of the lungs, where its renovating action purifies the vital fluid before it returns to the heart from which it circulates in a living stream to every part of the bo- dy; producing a never ceasing circle of chemical changes, so longas there is life to sustain its movements. And if we count the number of respira- tions made in a minute, they will be found in general to amount to twenty, so that, upon an average, we draw upon this great magazine the atmos- pliere for nourishment and support no less than twelve hundred times every hour during the w^hole period of our existence. Nor has nature been more profuse in the supply of that aerial fluid with which we are surrounded, than careful in the means adopted for its efficient application. The interior surface of the minute cells of the lungs iittS been calculated to present an area about twenty times greater (I I' I 1!! 16 than the surface of the body • •orhiU the sanguiferous system ince'ssln Iv of the frame to the heart as uniformTv as It IS propelled, that it may Sn be renovated by the free drauK fh^'S^t^^^^^-'^^y-hS'b;' The external surface of the bodv tC£ to'tr"°"°°^ «^ great import tance to tha mamtenance of a sound aud s rong constitution, thou|h they tent^o, «T""P!f ^ to a grefter ex^ tent, ior a time, than the function of Secttg^^^^^'S Z 'T^'T^y sensih,%Spirrttrtre''stt- ou ceasing its invisible agency unless when urged by extreme^hea^' or other cause, into inordinate action or suppressed by some in/uriou in-' fluence that tells speedily uronthl rS""-- "^^^^.-holf sEJS multhn-i V" '■^^"'y penetrated by a multitude of pores, through which whi^ii^XVds^S?^''^^^'^^ in the lung^ ^'''^'^' ^""^'Sy po-Jndt:'±!',7?,^-3"'--.-m- "ital air and-;^.g- 1 '^^ZTucl 17 body ; while 1 incessantly m every part as uniformly n^ay again 3 draught of inhaled by of the body reat impor- of a sound hough they fifreater ex- function of nimedately ation of in- inues with- ■e agency, reme heat, late action, jurious in- np^n thfe surface of rated by a gh which icy to that er energy ■ is a com- ^ygtJu, or a» which will not support life. It is the oxy- gen which vitalizes the blood, and re- moves all its impurities by contact with it in the lungs. The use of the nitrogen is mainly to dilute it, as, if oxygen alon • weie breathed, the vi- tal force would be so much accelerat- ed that the system wouM speedily give way, and death would soon fol- low. The lungs, as has been said, are that principal apparatus by which the air is brought in contact with our blood. In each of our lungs there are one hundred and twenty millions of air-cells, and every time breath is drawn in, the air passes down and fills these little air-cells. On the other hand, the blood is always going and returning to and from these air- cells which compose the lungs ; and in the short space of time that it re- mams there only a moment — it is en- tirely changed in its appearance and character. That is, it comes into these air-cells of the lungs impure, and of a purple colour fron the veins and alter having been submittpd to the action of the air, goes oat cf ttie lungs red, pure, and brigiit through the arteries. The arteries immedi- 2 1 !' ately distribute again to all partis of the system the purified blood, which as It goes through the system, im' parts warmth, strength, and life ; and DV the time it is poured into the veins on Its return course, it becomes quite dark femd impure again, ' The substance which makes th6 blood dark and impure, and which it IS the btismess of the oxygen to re- move, is carbon, known in a more lamihar form as charcoal. The pro- cess of breathing or respiration is, then, nothmg more, in simple Ian- guage, than exposing this carbon to the oxygen, and burning ft, as we burn charcoal, in a furnace; and Professor Liebig has estimated that m the process of respiration, carbon equivalent to fourteen ounces of char' coal, is burned within a man daily whicn is the source of animal life Now It must be remembered that ivhen we bum charcoal, the gas thrown off in its combustion is car- bonic acid gas, a very deleterious air; and this IS precisely the gas, which, produced m a like manner, is thrown off from the lungs. ^ « =.-.^ «..x«^.«^ii^ -- viiicn we ureatiie IS healthy,then - it is compo^ S^3 to all part« of blood, which, ! system, inl- and life ; and into the veins 3ecomes quite h makes th6 and which it oxygen to re- fi in a more li. The pro- Jspiration is, simple Ian- is carbon to g it, as we rnace ; and imafed that, ion, carbon, nces of char- L man daily, mimal life, nbered that )al, the gas tion is car- leterious air; 3^as, which, sr, is thrown vve breathe is compo- Id ed of oxygen,or vital air,diluted with a sufficiency of nitrogen, or unwhole- some air, to reader it salutary. But as the oxygen, after having been through the lungs, has been taken up J and combined with the carbon of the I blood; what remains must be nitro- gen and carbonic acid gas. And such, actually, is the air thrown off continually from the lungs — a mix- ture of two unwholesome and poison- ous gases. We may hence learn the vital ne- cessity of having a continuous supply of fresh air for sustaining the healthy action of the human system ; but to illustrate this point still further, let us trace the respective operations of air and food in sustaining life. The time occupied in preparing food for nutrition, by means of the process termed digestion, varies with differ- ent articles of diet, but probably is never less than two, and in many in- s ances extends to six or eight hours. For this purpose a long and manifold process is necessary, having several distinct steps, and employing a num- ber of separate and complicated or- gans ; and even then the'food is not completely changed into blood, but r^\ i VI I m S3 yet only chyle. Again, fresif sup- plies oi food are required not more than three times, and frequently only twice a day. But how different is It with the atmosphere in these par- ticulars ! Air is no sooner inhaled than its work is begun ; and so rapid IS Its agency on the blord, that tha inhalation of pure air is followed almoBt immediatelyby the exhalation ol the same air degenerated, and twenty times in a minute, the blood requires an additional supply of oxy- gen, without which the body suffers. Secondly-~We observe that the di gestive apparatus possesses the high- ly valuable, and very necessary,pow- er of separating the /latritious from the innutritious part o^ :7ig food. This is one of its most strikino- peculiarities. No such power of dis^ crimination, however, is given to the process of respiration. The action ol the gases inhaled upon the blood circulating through the lungs is di- rect, immediate, and positive. If an innocuous gas is taken in with the air, the lungs have no power of sep- arating them; nor, if it be a poison- ous gas, is there any power to deprive it cf its injurious properties. ^ ^ ^ " iNf fain, fresif sup* ired not more frequently only »w different is J in these par- Booner inhaled ; and so rapid >lord, that tha r is followed, the exhalation eneraled, and w/c, the blood supply of oxy- body suffers, ve that the di ?sses the high- ecessary,pow- itritious from -''K food, most striking power of dis- s given to the The action on the blood lungs is di- ►sitive. If an in with the >ower of sep- be a poison- ties» 21 Thirdly, as regards the length of lime that a person may exist without any additional food, it is believed to be about three weeks at the longest. Recovery at the end of this time may not be possible ; but still, life may be continued this length of time, at the last, burning more and more feebly in its socket. On the other hand, exclusion of atmospheric air from the lungs for the space of three minutes^ will generally cause the death of the individual. But another, and perhaps a still more important, circumstance is here to be noted. 1 he food v/hich we take into the stomach undergoes several changes, before it is prepared to enter the cir- culation. These changes effected, it is finally poured directly into the 'current of blood, as the latter is about entering the right side of the heart 'prior to its being transmitted through the lungs. It is not yet blood : it has neither the colour, nor the chemical properties of that important fluid. It has yet to be sanguified, and for this final step the air is necessary. For this purpose the chyle is brought, in the lungs, in contact with, and is m acted upon by the air in these organs. Without contact with the air and denying a vital principle from it, it would still be unfitted to nourish the the body. U^ therefore, we consider digestion to comprehend every step which the food undergoes, I'rom mas- tication to Its conversion into blood we must consider lespiration as the last acto/ digestion, and essential to It. Without the former, the latter lunction would be useless; for our lood, unable to undergo the final change necessary to sustain lilo, and lo replace the worn out material of the body, would become a burden- without the atmosphere the food would be useless. One more fact will complete the contrasts of these two sources of an- imation. Rare are the circumstances, ejcce^ among the destitute, in which a sufficiency of food cannot be ob- tained ; the danger with most persons IS on the other hand. Repletion and surteiting are far more frequent, and productive of great danger. But we cannot inhale the air in too great a quantity, or of too pure a quality, ifte lungs, as well as the stomach, ^re ft digestive aDDamtno T^k« ^ i «u I these organs, the air and >le from it, it o nourish the , we consider nd every step esy j'rom mas- •n into blood, ration as the i essentia] to 5r, the latter It'ss; for our go the final tain lilo, and t material of e a burden J •e the food complete the lurces of an- cumstances, ite, in which nnot be ob- uost persons epletion and equent, and 3r. But we too great a '' a quality, le stomach, I digests food, the other air, but heu the analogy terminates, and one of their principal distinguishing charac- teristics is, that while the stomach may possibly admit a quantity of food sufficient to paralyze its powers, and even suspend digestion altogether, such is the construction of the lungs, that by their own self-adjusting power they under no circumstances will admit a greater quantity of air than is required for the due ventilation of the blood, the sanguification of the food, and for the performance of the other numerous and important processes to which resoiration is made subser- yient. When pure, air can do no harm in the greatest amount than can possibly be inhaled. On the contrary, the greater the amount of food eaten, the greater is the amount of air required to sanguify it ; and, whether much or little is eaten, the more thoroughly and rapidly it is aerated, the better. With a knowledge of these differ- ences between food and air ; of the vast personal, social and economical benefits derivable from the inhalation of the latter in uniform purity ; of its ill 24 altainment ; and the ease with which its impurities may be avoided ; is it not oat; of the most surprisin:^ facts in the history of civilization, tliat so much di^c)^l^()rt and ill-health, so premature and so great mortality, as are directly attributable to them should be permitted ? We are now prepared to compre- hend with some degree of clearness the vital nature of the relationship which animals sustain to' the atmos- phere. We proceed, therefore, to direct our attention to the necessity of a sufficient supply of it. We dwell at the bottom of an immense ocean of air, which presses on all sides of us with the weight of tons. It accompanies us into all places, unless by special arrangements we contrive to bar it out. All that the infinitely wise Creator can do He has done to supply us with this first and highest of earthly necessities. The birds of the air, the beasts of the field, and even the savages of the Igrest, in their open wigwams, enjoy the blessing in all its b6unty and ful- ^^r* a- ^*^*^*^^<^ ^«^ alone cuts hira- se,i off from the beneficent and all invigorating atmosphere by retiring 25 tse with which voided ; is it irprisin:^ fads :!ition, that so ill-Iieahh, so t mortality, as ^le to them id to compre- ; of clearness i relationship o the atmos- therefore, to the necessity of it. We an immense resses on all ight of tons. 5 all places, gements we All that the can do He ith this first necessities, le beasts of Lvages of the warns, enjoy mty and ful- )ne cuts him- ient and all by retiring into air-tight chambers, and using the same gases over and over again, as if they were a taxed commodity, and he a miser. The volume of the atmosphere is so vast that its com- position is not sensibly disturbed by the breathing of animals : the pro- portion of oxygen remains unchanged if respiration is performed in the open air, while the carbonic acid expired, instead of accumulating about the in- dividual, is dissolved away by the great law of gaseous diifusion. But when a person enters a house, or an apartment surrounded on all sides by solid walls, impenetrable to the air, the case is totally changed ; the im- mense expanse of the atmosphere is suddenly reduced to the dimensions of a few hundred cubic feet ; the al- terations now produced by breathing are rapidly communicated to the whole mass of air ; and the person occupies towards it an entirely new relation ; one, however, over which he has absolute control. The first effect of respiration on the air is the withdrawal of its oxygen ; and as the proportion of this life-sus- taining element decreases, the bodily powers become less and less active, J I i f i \i\ i i -4a 26 sirnply from want of their propt stimulus. The natural proportion o^ oxygen in pure air being adapted to the most perfect performance of the animal machinery, a reduction in this amount, however slight, must be at- tended by a corresponding depression of the vital energies. We have seen enough of what takes place within the bodily organism to understand that the condition of health depends upon the harmonious and balanced play of opposing forces. If the equilibrium of these forces is disturb- ed, the vital machine goes wrong ; it is an unnatural, a diseased state. A slight diminution in the proportion of respired oxygen does not produce any immediate or palpable malady, but it certainlydisorders the natural healthful operations of the system to a greate) or less extent, and thus lays it open tc the assaults of disease. It undoubt- edly prepares the soil, and sows the seed, which in due time, springs up into that luxuriant harvest of ail- ments and complaints, which is reap- ed by the victims of modern refine- ment and civilization. But it is not alone deficiency of • oxygen which renders air irrespirable; 27 their propt proportion o^ g adapted to mance of the luction in this , must be at- ng depression *Ve have seen place withiij understand ilth depends md balanced es. If the 3es is disturb- )es wrong ; it 5ed state. A proportion of t produce any lalady, but it ural healthful 1 to a greate) ays it open tc It undoubt- ad sows the , springs up •vest of ail- rhich is reap- Ddern refine- leficiency of irrespirable; the presence of an undue quantity of carbonic acid is a still more potent cause of mischief. It has been shewn by experiment that an animal may be kept alive in a limited quan- tity of air until a very considerable exhaustion of oxygen takes place, proi'ided the carbonic acid be re- moved as fast as it is formed ; but if it is suffered to accumulate, death ensues much more speedily. In con- firmation of the general statement made in the preceding paragraph it has been found that the baneful effects of carbonic acid upon the sys- tem increase with the deficiency of oxygen. From experiments on in- ferior animals it has been concluded that three per cent, of carbonic acid, if formed from the oxygen of the air, would prove fatai to man, while, with the natural quantity of oxygen, twice or even thrice the proportion of carbonic acid might not produce death. The proportion of carbonic acid in expired air is from four to eight per cent : and it is assumed by different experimenters, that this, together Wtb the other exhalations of the 28 body, contaminates from seven to ten cubic feet of air per minute. The excretion of carbonic acid from the lungs is less complete in propor- tion as the external air is already- charged with this gas ; and, in like manner, as the amount of oxygen in the inspired air diminishes, it exhibits less and less tendency to diffuse through the cell membranes into the blood. Watery vapour, too, which is excreted both by the lungs and skin, evaporates sluggishly, if the air is loaded with moisture, so that the moment the normal condition of the air is disturbed, there arises a ten- dency in the air itself to augment the evil Not only is there an excess of carbonic acid in the air, which is in- jurious to the system, but it operates to prevent the escape of what is con- tinually produced. Not only is there a deficiency of oxygen in the inhaled air, but what there is enters the body, as it were, with reluctance. The stupefying eifect of dark venous blood poured through the brain is, unhappily, most apparent where there is expected to be the highest degree of mental activity. Churches, public assembly rooms, and schools are but ^•■. m seven to ten nute. 3onic acid from ete in propor- air is already ; and, in like t of oxygen in hes, it exhibits cy to diffuse ranes into the ', too, which is mgs and skin, if the air is , so that the ndition of the arises a ten- o augment the > an excess of ', which is in- ut it operates f what is cou- rt only is there in the inhaled Iters the body, Qce. of dark venous the brain is, nt where there ;hest degree of irches, public ihools are but i 29 rarely provided with due means of ventilation, by which a constant sup- ply of pure air may be maintained ; and the inatlentioii, dulness, and sleepiness of both auditors and pupils are but the natural and inevitable consequences of taking into the system a vitiated and poisonous atmosphere. It would be wise for preachers who are annoyed with drowsy congrega- tions, and teachers who are afflicted with pupils of dull and stupid intellect to inquire how far the stimulus of pure air might be advantageously substituted for scolding in the one case, and flogging in the other. " The tender, sensitive child, that ffits, and reads, and learns its lesson^ and perhaps cannot learn its lesson, and stupefies, and pines, and droops, and, may be, has scarce a smile to expect when its task is done, yields, day by day, to its atmospheric foes. Day by day, and as it loses the first start of life, its lungs play less freely, its blood circulates more slowly, its chest contracts, its limbs pine away, its digestion is disordered, and before long it is delivered to the tender care of the man, who gallops in every other day, sends whole bales of pills ana I draughts, and soon settles, either the We, Of the constitution of his unfor- tunate patient." . \i ^t needless to urge that danger to the health and life of the child is so remote and trifling as to be unwor- thy of consideration. The reverse is ine case. Instances are constantly occurring m which the seeds of dis- ease are gathered in the close and polluted air of the schoolroom, to ripen into premature decay and an to'^inP^- f ^^"^ parents can call Ih ^ un^}^ frequent complaints of their children, whohave returned from school nervous, feverish, and pale, labouring under a depression of spirit^ and lassitude of body. A passing emotion (,f compassion may have at- tributed their appearance to confine- ment and study, neither of which is productive of evil effects, unless ac- companied by an atmosphere rank with impurity, habits opposed to cleanliness and health, a loss of com- lort and necessary recreation. In a schoolroom with a low- oe jling contracted in size, with no means ff ventilation, and containing from fifty to one hundred f^rhcU^. ♦!,„ ..•_ "./ haled by each differemp^i;' of lungt ^4iu; Jttles, either the ►n of his unfor- rge that danger of the child is as to be unwor- The reverse is are constantly le seeds of dis- the close and schoolroom, to decay and an arentscan call complaints of 5 returned from sh, and pale, ssion of spirits A passing may have at- 3e to confine- r of which is its, unless ac- osphere rank opposed to 1 loss of com- Ltion. a low ceiling, no means of ng from fifty ^i tfic uir, ia- air of lungs, I 31 loses its vital properties, and becontes loaded with the impurities and in- fections thrown off from numerous systems. To contend that there is in this no danger to the health of the child is folly. The temporary symptoms of suffering may disappear with the habits which occasioned them, but the tendencies to disease linger in the system, awaiting some predisposing cause to develope their active strength, and hurry their victim to an untimely grave. These statements are no exaggera- tion of the evil, for exaggeration is im- possible. Still, the evil is allowed to exist, because its first manifestations are not in a form that appals and terri- fies. Its approach is slow and insidu* ous J the operation proceeds in secret. At length, a frame racked with pain, -ya mind debilitated, unbalanced, or diseased,-powers of usefulness or en- joyment destroyed,are the fatal results of a few years spent in a crowded and heated schoolroom. For all these consequences the prevention is of the simplest character. The most ordin- ary mechanical contrivance will ensure pure air to the child, and the natural result, health and happinesi 33 to the man. That is a cosily econ- omy, which sacrifices sound health, and disregards tlie danger of dis- ease, to save a trifling expense. To those inducements to thorough ventilation, which spring from its relation to health, ought to be added an abhorrence of the very idea of drinking into our systems, over and over again, the foul and disgusting emanations of putrescence and dis- ease, which often load the air in crowded rooms. To a mind really refined there is little pleasure in the reflection that each breath inhaled has mad« the tour of a large assem- bly, forming an acquaintance with every rotten tooth and ulcerated lung that it contains. We instinctively shun the approach of the dirty, the squalid, and the diseased, and use no garment that may have been worn by another. We open sewers for matters that offend the sight or the smell, and contaminate the air ; we carefully remove impurities from what we eat and drink, filter turbid water, and fastidiously avoid drink- ing from a cup that may have been Pjessed to the^ lips of a friend. O^i wAc Qtiier hand, we resort to place* oi mm I ! a cosily ccon- s sound health, danger of dis- g expense. nl8 to thorough spring from its jht to be added Q very idea of 5tems, over and and disgusting cence and dis- )ad the air in a mind really pleasure in the breath inhaled a large assem- aaintance with ulcerated lung e instinctively the dirty, the Based, and use lave been worn 3n sewers for B sight or the e the air ; we ipurities from ik, filter turbid ly avoid drink- nay have been a friend. On onto place* gf 33 assembly, and draw in'o our mouths air loaded with effluvia from the lung«, skin, and clothing of every individual in the promiscuous crowd — exhala- tions offensive, to a certain extent, irom the most healthy individuals : but when arising from a living mass of skin and lungs in all stages of evaporation, disease, and putridity — prevented by the walls and ceiling from escaping, they are, when thus concentrated, in the highest degree deleterious and loathsome.'* It has been estimated that the lungs of an adult will exhaust about 800 cubic inches of air per minute. — Well, think how fastidious most per- sons are about drinking from the same vessel used by another person — or partaking of food from the same dish, or with the same knife and fork. Nay, it is looked upon with absolute disgust. Yet all this is cleanliness itself compared to the air we breathe in many of the churches, and court- houses, lecture and concert rooms, and even dwellings ; but especially, and above all, in railway cais. Con- sider the number of decayed and dis- eased lungs, the reservoirs of rum and tobacco juice, the innumerable labor- 3 i ( I t 3i atorie::;oi' mercury, ipucuL', &c., to bcr tound in a crowdod promiscuous as- sembly, and tlirou legions of the md then wonder le yourself to in- ^y'ln^y soul-sick- nd if, after sub- untary victim to ider it the rnost ims to h(isilate nking from the ighbor? instances men- )rints of deaths liar to most of ily mention two arrence : ance of the sad r that has been again occurred the New York sous intoxicat- i Sunday even- i one ceil. On as found that '■1 35 three of the five had ceased to breathe. Enduring all the tortures ol slow grad- ual suffocation, they died as horrible a death as those who perished in the Black Hole of Calcutta. Yet the ar- chitect of the prison, and the officer who made the committals, are not a whit more culpable than thousands of other architects, and tens of thousands of those who listen with a feeling of holy horror at the recital of such bar- barous atrocities." "Almost as soon as a speaker in a crowded assembly begins he usually finds his head full and throbbing bad air is at work with him. The blood that is going to his brain has not been purified in his lungs by con- tact with good air. Jt has a dimin- ished stimulating power. It is the first stage of suffocation. For all that is done with a man that is hung is to prevent the passage of air down his wind-pipe. And if you corrupt the air till it ceases to perform a vital function, it is the same thing in ef- fect; so that a publie speaker in a a prolonged species of atmospheric hanging. 3€ Ihe peopSe, too, in^amly i*?rew jjgns of cfistrL>¥».^ Women hegm to Ian themselves; children grow ^Jeepv and well-fed men grow red and som-* nolent. How people can consent to breathe eacfe ather^s breatb over and over again we eottki nevei imagine. 1 hey would never leimn to a hotel where they wwe put into a Bed be! tween shejts that bad been useti bv travellers b-fote them; no,tbeymu^l have fresh sheets. They would ^ without fooct mUrer than eat off a plate used by several before them."* We now adduce a few instances of recent oceurreaee of the destructive effects oi foul air. It is tme they are ot an aggravated character, but thev will serve, on that account, the more lorcibly to present to the mind the in- jurious effects of inhaling less vitiated •m OI GOfsrse, air which is slightly vitiated will not produce such instan- taneous or pernicious effects as air which is very m^ch so. Still, the delicate health, and nuwierous ail- ments of thousands, mav be directly traced to this source. Bad air, in a mitigated form or in small quantity may be a comparatively slow poisonl But iSj nevertbelessj sure. ^orriejn begin to ren grow *Jeepy» )\v red and sorr>- can coBtsent to breatb over and never imagine, etiaija to a JioteJ, i»to a Bed be- i been nsed by ; »o, they musi riiey would go than eat off a before them.'" ew instances of the destructive is tme they^are aeter, but they Jount, the more he mind the in- tng less vitiated hich is slightJy ce such instan- eifects as air so. Still, the nunierous ail- lay be directly Bad air, in a mall quantity,, y slow poison^ re. i7 It is strange that down to tlie j^res- cnt period of the woild no warning fiote ha« been given as to the Upas tree which we nurture within our Own dwellings I never jet knew of a healthy family m adwelliMg stand- ing over a wet eellaa-. Wet or dry, no unventilaled dwellmg should have a cellar under it. Jt is always the ffeceptecle of the material forming the chief food of the family^—meat, ifish, butter, vegetables, and various other edibles, of course in a state of oison, but the whole building is fill- ed with a deadly atmosphere. The Galena Jefersonian gives the i 1 33 follo\ving lamentable picture of mor- taJily ,n one house, Lamar'« stage sta- tion fifteen miles east of that oitjr on the Chicago road. It also incident- aiiy touches on the cause of Dr Ladd s illness and decease. Surelv such cases will eniorce caution upon those whose cellars are liable to foul air and dampness, itsavs: an Jt, t^, /" ^" "^''^ ^^''- Lamar and four children, tv.-o servant girls two stage drivers, the bar-keeperf and a man employed, until yesterday ma- kmg coffins for the deceased. ^After nine had died in the house, which, by and airy situations in tlie country the remaining members of the family 'and the friends who kad come to Said removed to the barn across the s reet Hvfnl :,,-n''-,^^'"^''' 'ind his only burgh and the place is abandoned, on T^. . ' °^ S'i""«b"gh, who died aUenSn'? '^^'"°"""^' ^^«* °"^ °f 'he attendmg physicians. A friend of S in ^' ■ '^ '^°"'' *t«S:e-dri vers, who ^-led m ,j g^y within ^ f^^ ^^ e picture of mor- gan] ar's stage sta- LSt of that city on It also incident- e cause of Dr. decease. Surely rce caution upon are liable to foul it says: are Mrs. Lamar ■/o servant girls, [ bar-keeper, and il yesterday, ma- eceased. After louse, which, by 3 most beautiful the country, the f the family, and ome to their aid, Lcross the street, ere seized, and *, and his only one to Shulls- s abandoned. >urgh, who die^'d , was one of the A friend of at Shullsburgh, or, if not also ?e-drivers, who 1 a few days— _s two at the Bradley House, and two at the City Hotel— were in the habit of taking >:ome of their meals, and f^pending their spare time, at Lamar's house. 'J his extraordinary mortality isun- ^^xampled. We hear that it is ac- counted for by the condition of the cellar beneath the house. The bot- tom, it is said, was covered with wa- ter in a putrid condition, in which were floating cut pieces of meat, de- cayed vegetables, and other refuse that will gather in such places. — Over this mass the meat consumed by the family was hanging, and through the accumulations upon it the disease — whatever it may have been— is supposed to have been communicat- ed to the sufTerers. Let the warning take hold of all, whose prenuses con- tain the seeds of disease. A similar circumstance occurred at Craydon, in England, in 1854. An epidemic appeared consisting of fo- yer, diarhoea and dysentery— and all this after the construction of a new system of sewerage intended to im- prove the sanitary condition of the place. The investigation shewed if-hat an important jcause of the epi-^ 40 system of h! '''^"'^ '» ^ defective system of drainage. The drain Dines S ^-^^ i earthenware, an^ ^e! sides being of too smail capacity for ed' ?„r,r^ °^ ''"^'^ ^'^We to'^bep^our- ed into them, were frequently beset ^c CVt "' ^"•^"'nbenf earh «c. In this way numerous stonoa' f "bS'tt ^''•'"^ '^^"-d ♦hS"l air behind them to be driven out at the entrance of the pipes when wLer was poured in *^ ^ " "^^ water wetl^lXeTXt^nr? ' '^" posed to be alaTe': :!£srS" onmg in the National Hotelfnto a hlt^Zf^''\^'- B^ohanan, was f»,n '•i!."'^ '" '««8 '•'an tliree days three h"unH"5 K^"^ ''^^^"ed. «St p^pttrurroJi Anothf ^^'^ "^'^ "' 1««« affectea. Another instance is as follows: « appears that several deaths ag of the houses to a defective The drain pipes nware, and be- laJl capacity for able to be pour- •equently beset ;umbent earth, nerous stoppa- 2aused the foul J driven out at •es when water 'peared a few t first was sup- i^holesale pois- iotel in Wash- Buchanan, was lan three days serted, about having been nieat and ve- fie means had bul air of a ^uvia from the The Presi- ame near dy^ less aifected. 3 follows : veral deaths 41 have taken place in the ^aol for the city of New York, called "The lombs," these being principally of drunken men, ^ho had been confined l^iiTcfrn^^^f"' unventilated eels, called "The five-day cells,- and that the coroner^s juries had returned ver- rnf. '•'"♦•f'^i] ^^'^'^^ "^^a^l^ from intoxicati6n." , " Last week six individuals, who iiad been committed to prison on the charge of drunkeune.ss, were crowd- ed mto a wet, noisome cell, eleveft leet square, having no means of ven- tila ion but a diamond-shaped hole ot two inches square, opening into Onsl^'^' r^^^"^^ of \he p^rison. On Sunday afternoon these six men, neither of whom had been less than two days m gaol, were put into the cell at SIX o'clock. On visiting it one hour after, one of them was'found dead, and another in convulsions, who was removed to the infirmary! A ^second visit was made to the cell fi^ -. • '^® inmates was removed irom It m convulsions. These three cases appear to have aflforded no warning to the authorities of the pri- son. who lockpfl nn ih^ k^l ...1^.* "i' '"'^ iii/ic wiUi lis %| 42 remaining three vielims in jt, -who were foiuicl dead npon opening it in Ihe morning. A coroner's pry was summoned, and returwed a verdict of "died from the effects of drunk- enness," in eacli ease, although the deceased men had no liquor for several days pr£;vious. The Attorney General, not bein^ contented with these verdicts, order- ed the prisofa to be examined, and Dr. Chilton, tJ.ie celebrated analyti- cal chemist, was one of the commit- tee of investigation. On entering the cell m which the deaths took place It was found to be quite wet, and filll ed wjth carbonic acid gas, which was streaming into the apartment through a hole in the wall communicating with one of the chimneys. Di\ Ch.l- ^n filled several battles with the gas. The Attorney General seat th« ease before the Grand Jury, who have made a presentation to the court set- ting aside the verdicts of the Coroner's Juries, and declaring the deaths of the unlortunate sufferers to have tak- en place from suffocation by inhalinc^ carbonic acid g;>s. The Grand Jury iiave also* presented thc^aol as anui- ous U} the lives of those as in Jt, -who opening it in ler's pry was ed a verdict of its of dmnk- , although the 10 liquor for al, not being erdicts, order- :amined, and ated analyti- the commit- n entering the is took plaee, wet, and fili- as, which was ment through mmunicating 's. Dr, Ch.l- with the gas.. §eat ihie ease ^ who have the court set- the Coroner's le deaths of to have tak- 1 by inhaling Grand Jury raol as anui- ives of those consigned to it. As may be inia^n'n- ed, these disclosures have created a great degree of excitement in New York. u tF^^^ ,"^.^^ instance is as follows :-- Death rom foul air in a Haiiway carnage.'' '^ Mr. G. Brent the deputy Coroner for West Middlesex, held an inquest yesterday at the Lord Wellington Univorsuy Street, Tottenham Court Koad, touching the death of an infant aged ten months, named Thomas Carr, who died in a Railway carriage on the London and North Western ime, under the following circumstan- ce.- It appears that the grandmother ol the child was travelling with it un- der her charge. They were all night on the road, and she never slept diir- mg the whole time. Between eight and nme o'clock on Sunday morning the tram stopped at Camden Town to collect the tickets, and, seeing the child lookmg very pale and still, she showed it to a medical man, who happened to be in the uexS carriage, when he pronounced it dying, and it expired almost immediately after- ♦ I — wards, but so nnipthrilnof oK^ ♦.,„ it was dozmg ofl'to sleep. In answer 1., 41 ^ Ibe coToner tlie wi-tiiess stated that the child was lying y the lamps, would easily «au9e death, although, probably, a ^ealthierichild might have escaped. \8 a further proof of the electa, tslow, 'though sure, of this deadly poi- son, carbonic a«id gas, which, being heavier than the common air, is al- ways lyin^ nearest the earth (and ol course filling every cellar, or other cavity) I have ascertained upon en- tquiry, and the facts are susceptible of the most irrefragable evidence, that «iU our inuiau iiiucs — wmi^^i^ ..»^ exception of a single individual— are 45 stated that knees the of the ear- but it was led ; there iMthe way; mconveni- gentleman, rtem exami- d that the enoiasblood m iiorn^ foTxl hat the de- late state of sphere of the i breath ofs© to the cona- ^oudd easily probably, a ^e escaped. the €^eets, g deadly poi- vhieh, being m air, is al- iarth (and of iar, or other Led upon en- msceptible of ridenee, that :4.u^iif fKiik lividual — are dl more or lesn affected by pulmonary, or cutaneous diseases, of which nine out of ten ultimately die. We know as a matter of fact, that these people have, from tims immeiiK:>rJal, slept upon, or near the surtace of the earth. Now I should like to know to what other cause than the inhaling the car- bonic acid gas this mortality from consumption can be attributed. It is notorious, too, for the public papers fuUydiscussedthe whole matter about three or four years ago, that within the Eastern Provinces there are a people who are universally affected with a disease which is called Ele- phantiasis^ a species of Leprosy I be- lieve, the details of whose misery are unfit to be named before this audi- ence. These people zill live or rath- er burrow, under ground. You see, therefore, that whether slowly or rapidly, in one shape or other, foul air taken Into the lungs shortens our days, sometimes by a slow process, sometimes by a quick one, according to circumstances, but whether slow or quick, its operation is always sure and certain. The New York Tribune^ a paper whose opinions on scientific subjects 16 are always entitled to great \yeiglit, thus comments upon the functions oi respiration. "Our Lungs.— If v/e had an extra life to live, with liberty to devote it to such eftbrt as we deem most con- ducive to human good, we should be- gin by studying caiefully and thor- oughly the chemistry of air, the econ- omy of heating, ventilation, &c., and thenceforward write and print tracts or essays, and give lectures on the general subject of air in its manifold and vital relations to the life and health of man. Since we cannot do triis, we shall improve such opportu- nities as may offer for diffusing just ideas on this important subject. ''The coroner's report of last week's deaths in our city shews that seventy- one of these deaths were caused by consumption, thirty-two by infiama tion of the lungs, twelve by conges- tion of the lungs, six by whooping- cough, twenty-one by croup, making one hundred and forty-two deaths (out of a total of four hundred and thirty-six) by diseases of the organs of respiration, not to speak of the deaths by Typhus and Typhoid fe- vers, and some others, which notori- 17 ously liMve llieir source in jH\slih'iit inhalations. These otiieial returns I'ully justify an estimate based on re- liable authority, that fuHy one-third of all the deaths in this country, which amount to nearly one million per annum, are caused by diseases of the throat and lungs. Jf we reflect that no considerable proportion of the deaths of infants are thus occasioned, we shall realize that almost a moiety of the deaths of adults among us are caused by disorders of the organs >f respiration. "Is this frightful mortality inevita- ble ? To affirm that it is were to im- peach the wisdom and beneficence of God. The lungs and their approach- es are made to conserve life, and not destroy it ; the atmosphere is benign- ly adapted to their sustenance and use ; but we, in our ignorance and heedlessness, vitiate the air, and fill the lungs with disease . Having done this, we fly to drugs to cure evils to which they bear no relation, and [MDuring drugs into the stomach to cure diseases of the lungs is, ordinarily, just as sensible as the ancient folly ..i- 1..: x_.-i . 1 .*' v?i uppijiii^ uciicipiasms lo a sword m order to heal a wound made by it on 48 some individual, now, probably, sorns miles distant. Having mn the round of nostrums, from Sarsaparilla to Cod Liver Oil, we discover that the pa- tient gets no better, but is hurrying to the grave; so we try quackery's last shift, and pack him otT to Cuba, Ita- ly, or the south of France, (in ail which natives are dying of consump- tion every day) where, jolted by trav- el, injured hy exposure and bad hours, and tortured by the absence of family, friends, and home comforts, he speedily dies, affordingour grand- dames ' another confirmation of their theory that consumption is esj-entially and in'^vitably fatal." " We have seldom met with any gtatement in the w^ritings of medical men on our present subject so satis- factory as tha following extract from a little work entitled "A practical Treatise on diseases of the Throat and Lungs by Robert Hunter, M. D." The author says — " The changes which take place in the lungs are produced by the pre- sence in them of a matter, to whicn the name 'tubercle' has been given, and which matter is secreted from the blood. 49 " Now if tubercle is the cause of consumption, what is the cause of tubercle ? Why is this substance formed in the blood? These are questions that have been frequently asked, but never, I believe, satisfac- torily answered. Yet this is the very fountain of the evil. Until correct views are entertained on this subject, whatever success may attend the treatment of consumption in individu- al cases, we cannot hope to diminish its prevalence. In my opinion, there is but one great cause of tubercle, and that cause is a deficient supply of pure air to the lungs. This deficient supply may be caused by the most dissimilar influ- ences. Persons employed in seden- tary occupations, and those compelled to keep the chest bent forward, re- straining its movements, (tailors, shoe- makers, and clerks,) are all particu- larly obnoxious to consumption. These, and similar occupations, not only confine the chest, but they also expose the system to other injurious influences, to th*^ want of bodily ex- CiiL'USo \>i impure air. Exercise is necessary to assimilate nutriment, and without it 50 !:■ ! there can be no vigorous health. Im- pure air alone will brktg on consump- tion in the soundest constitution. The oxygen of the air we breathe regulates our appetite, and, to the weight of a grain, the nutriment that is built up in the system. The chyle undergoes its last vital change in the blood, and that change depends on the perfect performance of res|)iration, and on a sufficient supply of pure r. When respiration is obstructed jy disease, the appetite fails, and the body wastes away. When the air breathed is im- pure the same thing takes place, the face becomes thin and pale, the fea- tures sharp, the respiration hurried, and the appetite poor. Persons so afflicted all die of consumption. No constitution is proof against this in- fluence. The strong man, who has inherited a full development of the chest, may, possibly, bear up under it for a longer time than the feeble scion of a consumptive family ; but he, too, will fall in the end from the same dis- ease characterised by the same stages and symptoms, and ari&ing from the . same cause. To those hereditarily ,'*^ 'predisposed I yould say . Do not de- kna'w V^^-k^-kniifirt ir/A1-|1> l^OfOTI 'jCLyccii, K^\y v^V f «a nr hrnth- I, £ *-«■ £ £ V Tw* ^ '^-' \ ors, or sisters, or other kindred, on ei- ther side, have falbn a prey to eon- sumption. If your frame is delicate, and your chest small, seek the open air and regular exercise. Observe what nature requires, be faithful to her demands, and you may live to bury half the strong men of your ac- quaintance." "We know this is the actual truth, whatever may be the merits of the au- thor's remedies or mode of treatment for the diseases in question. Con- sumption, and kindred diseases, are not caused by " exposure" to the ca- prices and inclemencies of out-door weather, one-^enth so often as they are by the infecting, debilitating, poison- ous malaria of crowded assemblies, and unventilated school-rooms and bed-rooms. A youth «■« delicate" in constitution, and deficient in stamina, is quite commonly supposed to be,/or that reason, fitted for a life of in-door, sedentary occupation only, when, in truth, his frailty of constitution, and feebleness of muscle, afford the strong- est possible reason for sending him forth into the field, and rendering him familiar— at first gradually and mod- lilt 4|->J>1 r% m^ .^ , d I 1 vViiiJ liic UAU, iilV piuiign, ana ?*."X^ / I'i 50 all the implements of rugged, invfg^- orating toil. A robust man may brave for years the perils of confinement within brick walls, and devotion to sheer brain-work ; a feeble person is almost certain to become speedily their victim. But whether you are Yobust or feeble, in health or sickness, working with head or hands, you can-^ not afford to work or play, wake or sleep, sit or ride, where there is not a copious supply of pure fre^h air." The following observations by Hen- jy McCorraack, M. D., a member of fhe British Association for the Ad- -rancement of Sciemce, will form a suitable ccNocliisioii ta this part of our subject t " I desire to ptesent, in? a brief, per- spicuous formi, the result of my inves- tigations a» to the connexion of at- mospheric imopwritie* with disease Strictly speaking, there' is^ no natural knpurity, except matoriMfi,, presumably Ihe result of the decomposition of ve- getable remains, aided by a certain amount of warmth and moisture. — - This it is which gives rise to the whole tribe of periodic disease, from the simple intermittent, or ague of tem- perate climate*, to the destructive re- 53 mittents of the Torrid Zone. Of these 4ast, Yellow Fever is a striking form. The attempts made in recent, as Ir iformer .year^, to ascribe it to infection, have, in. my opinion, been unattended with the slightest success. Putting aside Typhus Fe.ver, with which we must take vcare not to confound it^ Yellow Fever is simjaly a setcof symp- •toms induced by the resjjiration of air arendered poisonous by the products of vegetable decay. We know, indeed, nothing of the primary symptoms of smalUpox, mea- sles, scai let-fever, plague or cholera, but we do know that their severity is frightfully aggravated, and their fre- quency incalculably increased, by crowding, want of ventilation, insuf- ficient cleanliness ; m ^hort, by eve- rything that renders ak impure and stationary, a nur.seiy for the leaven, or ferment, which, being taken into the lungs, leavens the whole system,!, and reproduces the complaint. The number .©f .cases, in which Typhus Fever ensues from casual causes, as cold, wettings, over-effort^ rather than infection, is comparative- ly few. For practical purposes, m- tflf»Pn it minrllf nlm^a*^ K^-,~«. J ^1_ 'W 54 fever had no other source than infec- tion. Nervous, relapsing, gastric, ty- phus, typhoid continued, and essen- tial fevers, so termed, are the same. There is not, in fact, the specificity about typhus, which has been assert- ed. It is simply the result of dirt, crowding, and foul air. There is, however, the important distinction between this malady and febrile ex- anthema, that no degree of crowding although it may aggravate, gives rise to them,whereas the poisonous atmos- phere from human contamination, car- ried a certain length, is competent to produce fever at any time. If per- sons, not labouring under fever, by reason of the impurities emanating from their persons, be able so to poi- son the atmosphere as to entail fever ill themselves or others, it follows yet more cogently that persons who do la- bour under fever, shall thus reproduce the complaint. In point of fact, they do reproduce it, and thus it is that fe- ver comes to abound. When the air, however, is maintained perfectly pure the fever poison either is not created, or, if created, becomes so diluted, as to prove insufficient to the production of further mischief. If fever spread, 55 then, it may fairly be taken for grant- ed that there has not been a sufficient observance of hygienic precautions. The air has not been renewed, suffi- cient purity has not been observed. Such is the immensity of the mighty ocean of the atmosphere, that it suffi- ces lor the removal of every impurity, if we only resort to the wise, yet sim- ple precaution of instantly replacing the portion that we consume. To breathe a polluted atmosphere, when we have it so completely at our dis- posal to avail ourselves of that which is unpolluted, is a monstrous error. — It is as if one, who might have fnir water from the spring, were to con- sume soil and impurity instead. The epidemics of the middle ages, like the febrile and cholera epidemics of recent Hmes, yield, I conceive, for- cible evidence as to the truth of these averments. The people in those days, as much too often in these, lived with little regard to the exigencies of their position. There was no adequate provision for personal or household cleanliness—none for the introduction of pure air into the dwellings. It is not^ perhaps^ too much to assert that these epidemics are hut another name 56 Jqt a foul^ unrenewed atmosphere. The product ion of typhus from the effluvia of human beings plunged in dirt and misery will not, indeed, en- sue unless those effluvia be concen- trated to the requisite degree of viru- lence. Still these effluvia, coupled with aerial impurities generally, are not the less productive of other mala- dies or diseased conditions, directly ot indirectly calculated to shorten life. And first and foremost of these condi- tions are what are called phthisis and scrofula. Phthisis, or ConsuHiption, is merely tuberculous deposit, with conditionally accruing inflamation in- ternally,\vhile scrofula is tuberculous deposit, with the like inflamation externally. As tuberculous deposits are most frequent in the lungs, it is to these that the term consumption is commonly applied. In other respects the bowel s,brain,the bones and joints, in short, the Irarae at large, are all lia- ble to tuberculous disease. Dyspepsia,or indigestion is so very frequently the attendant of tubercu- lous degeneration, as by many inquir- ers to have been looked upon as its necessary precursor. Confinemcmt, a deteriorated atmosphere, want of sphere. m the ed in 5(1, en- mcen- viru- )upled y, are mala- irectly ;n life, condi- ;is and iption, with ion in- culous nation jposits t is to Lion is ispects joints, all lia- \o very bercu- inquir- as its 5m(;nt, ant of sufficient bodily effort, and more es- pecially, the absence of full and free respiration in the open air, together with the consequent impairment of appetite and digestion, are quite enough, however, to account for the concomitance of tubercle and dyspei>- sia, without referring one to the other in the order of cause and effect. The habitual respirati(n of foul^ unrenewed air, I look upon as the on- ly -^al source of tubercle, including urn r this designation both phthisis nt scrofula. Jf an individual live constantly, day and niirht, in the apen air or in the air of equal purity with that subsisting in the external at^ mosphere^ he cannot incur consump- tion. There are no consumptive Gypsies or Bedouins, so long, at least, as they preserve their abori- ginal, out-of-door usages, or are not subjected to confinement or ill-treat- ment. Consumption from the re- spiration of mineral dusts^' besides^ its exceptional character, i»^ com- paratively rare ; and even here an atmosphere otherwise deteriomted is among the deeiructiv^: agents* ac- tively at work. As for hereditary consnmntinn i^oiVinrK^/^iiAi »11.r^.. — . 1 ) 58 fur the few Individaals born tubercu- lous, and for the greater proneness, under like circumstances, of those sprung from diseased progenitors to disease, there is no such malady. ^ In-door pursuits are very nmcti more frequently attended by consump- tion than out-door ones. And were it not for the atmosphere of the pesti- ferous bed-room, crowded with occu- pants, and destitute of every provis- ion for the healthy renewal ot air, those of the workina; classes, who lol- low out-door occupations, would es- cape very much better than they do.— it may readily be imagined, then, that when in-door pursuits are coupled with foul air in sleeping-rooms, the results must be doubly disastrous.— la fact, they are so. Short of atmospheric purity, con- smmption is not less frequent in warm climates than in cold. Intercurrent pneumonia and pleuritis will be less frequent, not so phthisis. Those ^yarm climates, in which consumption is re- ally less frequent than in cold, derive llieir comparative immunity simply from the people being forced by the great heats to live more in an unpol- luted atmx;sphere. If the inhabitants ii 59 of Great Britain and Ireland would but consent, day and night, to live in a pure untainted atmosphere, it would put a total close to the ravages of con- sumption. It is not sending people to warm climates that averts or cures consumption. It is sending them to pure air, in proportion as they are so sent, that does so, and this only. To confine consumptive persons in close, heated apartments, is but to hasten th« ravages of their disease. On the contrary, they should live as much as possible in the open air. Let us keep the consumptive in pure, fresh air, and we shall at once realise a Pau, a Nice, a Madeira, better than any Pau, or Nice, or Madeira, without fresh air. And belter still, let us live in a pure, unadulterated atmosphere, or in air equally pure as the open, un- adulterated atmosphere, and we shall have no consumption whatever . It is quite illusory to think of curing the consumption by means of food, or even medicine, without the amplest access to the free, fresh air. An ounce of oxygen is worth tons of fish oil, or iodine, or any amount of wire air- sieves for mouth or nostril, without oxygen ! 60 The dirt and sordes, amid whicfh ithe poor so habitually live, bespeak •sufficient condemnation . The senses take alarm, and sympathy and horror are in unison with our best judgments. These monitors, however, are at fault in the dwellings of the rich. Therc^., jperfumes regale the nostrils, rich •hangings solace the eye, Neverthe^ iless, it is undoubted that atmospheric impurity in the dwellitigs of the rich, however it may fail to obtrude itself ron the senses, is only inferior in viru- ilence and destructiV^ness to what it proves in the dwellings of the poor* That it is so, let the dreary catalogue rof person's of alLclassesxyearly swept .away in these islands by consumption •declare s" Thus far Dr. McCormack ; extracts rof whose opinions upoc consumptioa I have just given you. To guard you, however, against a imisapprehension of him, I must re- ?mind you that when he warns us against hf*nfted rooms, and urges his rconsumptively inclined patients to keep out in the open air, he is speak- ing of the English climate, not of a jposterous to order any invalid out in- h \ fa- the open air at that season in suclii » climate as this. Here the air must be brought to the individual, not the* individual to the air. Dr. McCormack, who read this pa- per before the Association of whiclr he is a prominent member, about five* years ago, is the ftrst medical man- who has ever had the boldness to at- tribute consumption directly lo the ef- fects of foul air^ confirming, in the most ample manner, my own obser- vations made, and without any medi- cal knowledge, more than twenty years ago. Not a shadow of doubt need remain on the mind of any man- that xoul air, cmd foul mr alone^ is^ immediately or ren>otely the cause of consumption',^ But it is not malaria alone whiiih causes consumption. Those recepta- cles of d\x9t and filth, woolen carpets^ are the chief cause. Every step we take upott a woolen carpet, in the best kept dHvelling house, sends a fog; of dust to the very ceiling of the room, and not on4y dust but myriads upon Biyriads of particles of wool. So thatt if our ordinary sight were equal to it, Wft shnnlH r<»nrr»vi-l n nn^^^*^Jl with perfect horror. A woolen carpet 62 v/ill last about a dozen yoars, and within that time our lungs will have taken iii about three-fourths ot its ori- ginal weight. What a pity that so beautiful an article of furniture should come to so ignominious an end. Woolen carpets, brooms and dust- incr brushes, should be banished Irom every family. They produce and en- tail upon every succeeding generation greater mcrlality tb.an war or pesti- lence ever did. No family can be a healthy one where they are to crated. Oil cloth coverings for cur floors, it they must be covered, how much more becoming in every respect. They may, at first, cost a trifle more, but they last longer, and the saving m doctor's bills will much more than balance that. But when we reflect upon the amount of misery they will prevent for generations unborn, who that values health can hesitate to choose between the two? A mop and a pail of water every morning wi I do in five minutes what with a wool- en carpet will take Betty with broom and dusting brush an hour; to say .t • 1 A ^«« n>^rl foor nTin the noiiiing aooLiL wcai aixv* i^.^^., • — discomfort of the family. Having now according to the best I G3 mop I best of my abilily, and llio lime at my disposal, discharged my duty, it re- mains for you, who are parents, to discharge yours. Whether you will hear, or whether yor will forbear, I »hall feel that I stand acquitted. If the testimony of the wisest and most experienced men, both in Great Brit- ain, and on this continent; if your own experience, and every day's obser- vation, will not convince you ;that the breathing of an impure atmosphere is the chief cause of the declension in health of our children — of those, es- pecially, who spend six or eight hours every day within the soul-sickening atmosphere of our schoolrooms, lay- ing the foundation of ailments and diseases, by which is entailed upon the next generation a miserable, but happily for them a short, existence — J say,if you are not convinced of this, then is your case a deplorable one in- deed, and at least another generation of your families must pass away be- fore an amelioration of your condition can be expected. Consumption, it is said, is heredi- tary ; this is not true in the full sense of the word. A predisposition to consumption isjbeyond all doubt,like >5^ er4 many other ailments arising from a derangements of the blood, transmis- sible, but is easily prevented. Un- ices, however, preventatives are em- ployed, the result is much the same as il the actnal disease were transmit- ted. What nature cannot perfect she will never begin, but then you must let her alone, you must not bar her out. You must submit to her laws, not she to yours. Nature's laws car- ry within themselves their own pow- ers of renovation, and if let alone, that predisposition to disease inherit- ed from our parents will speedily be diminished and effectually warded oft'. So, on the other hand, if we, like our parents, conti ue to live in an unheal- thy atmosphere, nature being unable to resist oiir protracted lebellion, our diseases become aggravated till they extinguish whole families, vnd thus their very name and race are blotted out among men. Take consolation, then, all who are hereditarily tainted with this disease. Your case is not desperate. Only se- cond, do not thwart nature, whose whole power is being constantly ex- erted in your behalf, and your chil- dren, 'hough liable to diseases, can 65 II both escape from it, and may natural- ly hope for and attain a long and hap- py life. Fathers and mothers— are the health and sickness, life and d . h, of your dearly beloved offspring matter of no mohient to you ? Would the w-alth of India compensate for the perpetual sicJaiess, and premature death, of one child ? Gold cannot measure the worth of a healthy family. Every ]>a- rent of a healthy and well organised family is infinitely richer than Crtiesus in all the essentials of riches — the means of enjoyment. But I must close — your patience demands it. ^ If the dreadful malady, v/hich car- ries sorrow and desolation into thou- sands of families, spring not from con- tamination of the blood by the breath- ing of an impure atmosphere, either remotely or directly, why has it, for so many hundreds of years, defied the skill of the whole medical world ? If it do spring from that cause, let us make an effort at least to rescue our children from its awful ravages. The disease once developed, we know, is incurable ; our only hope, therefore, as I have before stated, lies in preven- caii I G6 T vl ■'l TiON. To this end, then, let us turn our most serious attention and earnest endeavors — exertions which we owe alike to ourselves, our counti y, and our children — by adopting such means as will be most likely to strike at the root ot tlie evil, and lay a foundation, by, which, ultimately, under the blessing of the Almighty, we may expect el- fectaally to extirpate this predisposi- tion to a disease the most awfully ap- palling to which the human family is subject; a disease, which (in the Vv-ords of an eloquent writer) " so pre- pares its victims, as it were, for death; which so refines it of its grosser aspect, and throws around familiar looks un- earthly indications of the^ coming change— a dread disease, in which tlie struggle between the soul and bo- dy is so gradual, quiet and solemn, and the result so sure, that day by day, and grain by grain, the mortal part wastes and withers away, so that • the spirit grqws light and sanguine with its lingering load, and feeling the immortality at hand, deems it but a nev/ term of mortal life-a disease, in which life ond death are so strangely blended that death takes the hue and glow 01 life, and life the gaunt and 67 grisly form of death — a disease that medicine never cured, weahh warded off, or poverty could boast exemption from — which sometimes moves in gi- ant strides, and sometimes at a tardy, sluggish pace, but, slow or quick, is ever sure and certain." .-yN.W-*»-»'>'^'^ >" ^^iw^^iiiiii'ii<»*^»«^j»>^ai