THE LIBRARY OF THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL THE COLLECTION OF NORTH CAROLINIANA C553.U1 C88r FOR USE ONLY IN THE NORTH CAROLINA COLLECTION RETORT DPOX THE MINE AND MILLS, WITH ESTIMATES FOR THE USE OF THE NORTH CAROLIM GOLD AMALGAMATING CO. [Chartered by the Worth Carolina Iiegislature, Jan. 30, 1874.] BY General f. J. CRAM, U. 8. CORPS OF EKQINEEKS (RETlttED) ACTINO AS COSC UTISI ENOI'^EKR. TOOBTHBU WITH THE ETC ETC. COLLINS, PHILADELPHIA: PRINTER, 705 JAYN 1874. E STREET. I I Map entitled Plan sketch of the N.C. Gold Amalgamating Company's gold mine and gold extracting mills, etc., at Gold Hill, Rowan Co., N.C. shelved separately as Cm912.05 1874 . Digitized by the Internet Archive in 2013 http://archive.org/details/reportuponminemiOOcrann CONTExNTS. PAGE List of Opficees 5 Report 7 I. Charter of the Company 7 • II. Localit_y of the Gold Hill Mine, and Character of its Sur- roundings .......... 7 III. Description of the Mine (with a Plan of the Company's Pro- perty at Gold Hill, Rowan Co., N. C.) 8 IV. Character and Quantity of the Ore the Gold Hill Mine affords 10 V. Brief History of the Former Workings of the Mine. Chilian Process of Extracting the Gold. Product obtained. Amount lo.st 11 YI. The Crosby Process for Extracting not only the Free Gold, ^ but likewise the Gold and Silver with it, which are tena- ciously held combined in the Sulphuret ores ; also for Ex- tracting the Copper contained in them 14 VII. Experimental Results of Working the Crosby Mill on a Large Scale in Virginia . .17 VIII. Operations of Mr. Howes and the Associate Owners concern- ing the Mill, subsequent to the foregoing Experiments . . 17 IX. Operations from the time of Discovering Ifr. Howes' inability to fulfil his Agreements to the time of President Hulme's Sudden Death 19 — X. Action after Mr. Hulme's Funeral, to the 1st July . . 20 XI. Elements or Data by which to Estimate the Profits to be ex- pected from working the Crosby Process at this Mine . . 23 XII. Assays of the Gold Hill Ores 24 XIII. Probable Profits to the Company from the Mine and Crosby Mills 25 XIV. Policy of Working the Mine 28 XV. Schedule and Cash Valuation of the Company's Property at Gold Hill " . 31 XVI. Valuation of the Mine Exclusive of the Value of the Pro- perty Sclieduled in XV 31 APPENDIX. A. Charter 33 B. Testimony as to the Value of the Gold Hill Mines . . .36 C. Balance Sheet 36 OFFICERS OF THE CORPORATION. President. LLOYD P. SMITH. Vice-President and Consulting Engineer. Bvt.-Maj.-Gkn'l THOS. JKFFERSON CRAM, U. S. Corps Engineers, U. S. Army (retired.) Secretary and Treasurer. WILLIAM F. MITCHELL. Solicitor. B. ARTHUR MITCHELL, Esq. Counsel of the Company in Salisbury, North Carolina. WILLIAM H. BAILEY, Esq. General Manager of Mines and Mills. Prof. AUGUSTINE B. CROSBY. Directors. Lloyd P. Smith, Gen'l T. J. Ckam, Joseph G. Mitchell, Martin Landenberger, B. A. Mitchell, A. B. Crosby, Dr. J. D. Mitchell Barton H. .Jenks, C. BocKius, 2 E E P O R T . I. Charter of the Company. This is highly favorable, authorizing the Company to issue and increase from time to time its capital stock to the extent of §2,500,000 ; to erect mills with ample machinery for working ores, to extract therefrom the precious and other metals by any process ; to purchase and own mines, and exercise all operations for mining the ores ; also to issue mortgages upon its property, and coupon bonds or other evidences of indebtedness for the purposes of raising funds for carrying on its legitimate operations : and one condition of the charter is that the stockholders shall not be held respon- sible beyond tbe assets of the corporation, thereby not holding them individually liable. II. Locality of the Gold Hill Mine, and Description OF ITS Surroundings. This celebrated valuable mine is situated in Eowan County, North Carolina, fourteen miles southeasterly from the town of Salisbury. Railroads are continuous from Philadelphia and other cities to Salisbury ; but thence to the mine travel is by the county road. The time for reaching the mine from Philadelphia is twenty-six hours. The real estate upon which this mine is situated contains about 800 acres of land, a large portion of which is good for farming. On this tract a town called Gold Hill has sprung up, containing a population of about 1000, all more or less dependent upon the operations of the mine. 8 This mining property is surrounded by an old well-settled farming country furnishing all the necessaries of life in great abundance and cheap in prices ; and possessing a very healthy, mild, and salubrious climate all the year round. The large timber tracts in the vicinity of the mine furnish an ample supply of cheap lumber and fuel. The Company lias contracted for its yearly consumption of fuel for its steam engines to the amount of 12,000 cords, delivered and piled in its mill yards, at the prices of $1.25, $1.50, and $1.75 per cord, according to the quality. Common labor, and mechanical and raining labor, ranges from $1 to $2, $2.50, and $3 per day, according to the skill and aptitude of the men. III. Description of the Mine. Mr. Emmons, as State Geologist of North Carolina, in 1856, made a survey topographical map with sections of this mine. His report of it teems with valuable practical information concerning its productions. Professor Genth, geologist, has since examined and re- ported upon its ores, the process of treating them for the extraction of the gold in use in 1871, and the product of the process. More recently, several mining experts of ability and ex- tended experience have explored the mine, and pronounced the highest opinion upon its value. As Consulting Engineer of the Company I made an ex- tended visit to the mine last March, for the purpose of testing the Crosby Process for the treatment of the ores, examining the machinery and capacity of the mine in its then condition for production and future development ; also for forming a probable estimate of the amount of immediate capital required to improve the mine and construct the ne- cessary mills for producing \ large amount of gold and copper. This mine has three veins, differing somewhat in extent 9 running nearly in parallel directions N. 48° W., and sepa- rated by about 250 feet, and designated as follows. (See accompanying sketch which contains the portions of the veins worked.) The " West Vein" (about one mile in extent) containing the "Earnhardt Shaft" 250 feet deep; the "South Shaft" 450 feet deep ; the " Centre Shaft" 600 feet deep ; and the " Randolph Shaft" 750 feet deep. The " East Vein" (about three-quarters of a mile in extent) containing the " Barnhart Shaft" 350 feet deep; the "Old Shaft" and the " Lounder & Co. Shaft" of less depth, though not exactly measured. The " Middle Vein" (three-quarters of a mile in extent) containing two or more shafts, formerly worked, since aban- doned, of considerable depth. The main street or highway passing through the town follows along this vein. At the eastern end of this vein are the "old fields," where small veins of very rich ore have been found. The extents above given to the several veins are all con-' fined to the Company's property. But the extent of vein upon which shafts have been sunk does not exceed 900 feet on either vein ; leaving a large extent of vein, some 4000 feet yet unpenetrated with deep shafts and drifts. There is no reason why these unpenetrated parts shall not yield as much or even more than the parts of the veins which have been mined. But there is no necessity for sinking new shafts to find the rich ore. The Company has only to sink the Randolph and Barnhart Shafts 100 feet deeper, extend the present drifts from these shafts, and also new drifts at a level of 50 feet below these, to meet with very rich ore, to any required amount. The existing shafts are sunk vertically, in diameter 8 to 10 feet for some, and from 14 to 16 feet for others, in rectan- gular shape of horizontal section, and lateral drifts or gal- leries are run at various depths from the shafts into the ore veins. The thickness of the veins varies from 6 inches up to 4 feet, and even to 7 feet in some places. The walls of 10 the veins are mostly " talcose-slate" rock. Pumping is re- quired to keep the shafts clear of water, and drilling and blasting are necessary to sink the shafts, also to loosen the ore, which is lifted up by proper machinery to the ground surface, whence it is carted oft' to the mill for extracting the gold. Besides the mills, buildings, and roofings, whims, and shafts seen on the sketch, there are other dwellings, and a large amount of valuable machinery, tools, and other movable property on the Company's property which are of use to the Company. There is a peculiar feature greatly enhancing the value of this mine, and this is the fact patent to all mining en- gineers who have examined it, that the veins of the ore are continuous, and confined between walls so perfectly defined, that there is a striking resemblance to a coal or iron mine in that the gold ore does not exist in pockets, which are so liable to be soon exhausted after great expense of labor to reach them, as is so often the case in many western aurife- rous mines. The Gold Hill Mine is apparently what may be called the chimney, or summit of the gold bearing ridge or upheaval of 30 to 40 miles in extent in that part of North Carolina, and which is rich in sulphurets. IV. Character and Quantity of the Ore the Gold Hill Mine affords. Its gold bearing veins consist of quartz, talcose-slate, and sulphurets of copper and iron, with the gold, and sometimes a small percentage of silver mixed in, in particles so fine, generally, as not to be apparent to the naked eye. In the ore there is contained a certain quantity of gold that is re- garded as free, not tenanciously held in the sulphurets, and which is easy to extract; while in the sulphurets there is held a much larger proportion of the gold that is far more difficult to extract from the ore. As the shafts are sunk 11 deeper, less of the former kind is met with and more of the latter is fouud. Again, in the veins ores of different yields of gold are encountered, denqininated " poor," "good," "rich," according to the relative quantity of the precious metals they contain to the ton of 2000 lbs. of ore. Profit- able working, however, is not exclusively confined to the "good" or "rich;" the "poor" may be advantageously worked, depending upon the cost of mining and expense of extracting the gold. From evidence given to me by several of the former owners, and workers of this mine, men of experience and ability, with whom I have had free personal intercourse, several of whom I am happy to say have made large fortunes from their working, and good management of this deposit of wealth ; from information derived from official surveys, and reports of geologists; from conversations with min- ing experts, and engineers who have examined it, and from my own personal observation and study of the mine on the ground, it is most conclusively shown, and in my opinion proven beyond the possibility of doubt, that its ores are yet abundant in free gold, and, I may say, immense in that con- tained in the sulphurets — showing no signs of failure; but as the shafts are sunk deeper and drifts extended from levels, the quality of the latter will be found to increase and they become richer. V. Brief History ofthe Former Workings of the Mine. Chilian Process of Extracting the Gold. Product obtained. Amount lost. This mine has been worked spasmodically, I may say, in various periods from 1842 to 'the present time — 32 years; the pure gold ore having been treated mostly by the process known as the Chilian. During the war all gold operations were interrupted, and books and records destroyed, and the sulphuret ore was treated for obtaining sulphur for the Con- federate army's use. 12 In 1870-71, Mr. Amos Howes resumed operations and has worked the mine to the 1st of June, 1874, about three years. The Howes Mill house is seen represented as No. 5 on the sketch, containing " Chilian Stones" — the requisite "Jaw crushers," "drags," " rockers," steam engines, pumps, etc. etc. In the thirty-two years the mine has been worked, I am satisfied, and so is Mr. Crosby, the Company's General Man- ager of the mine and mills — that $5,000,000 worth of free gold, in the ore has been produced, but at what profit, in the whole ^^er ton of the ore, it is impossible to state, not knowing the total number of tons used, nor the expense of mining, nor the expense of extracting the gold by the Chi- lian process for the whole period of that product. Mr. Crosby estimates the cost of producing this $5,000,000 at $2,250,000 ; leaving a net of $2,750,000 to the producers. In Mr. Emmons' report, already referred to, I find it stated, " in the years of 1854-56, for a period of nineteen consecutive months, during which all that was worked was " poor" ore from the Earnhardt Shaft, " west vein," the product, as shown from the books of the company, was $136,636.76, and the expenses were $76,429.00, leaving a net profit (for nineteen months) of $60,207.76." But as the report does not state the number of tons of all the ore used, I cannot give the net profit per ton ; still we perceive that the handsome net of $3168.83 per month average for that period, was realized from the ore denominated " poor." In Mr. Howes' three years period of working, he claims to have produced $200,000, using up 8400 tons of ore, re- alizing an average of $23.81 per ton. And he claims to have saved by his Chilian Mill process, 33 per cent, of all the gold in the ore used. He has not sunk the shafts an inch, nor extended the drifts of any consequence, but worked what was left in the mine by the miners. Embraced in this product there was a special result which I adduce to show the appropriateness of the terms " poor," 13 " good," and " rich," as applied to the ores in different parts of the same vein. Out of the Barnliardt shaft 75 tons were used, from which he realized $15,000 in free gold — a yield of $200 per ton. More of the special products I will not present, though there are plenty of them, for it is far safer for our company to use results in our calculations of average yields for long periods of working than to frame hopes upon an expecta- tion of always finding "rich" or even "good" ores in the veins. It is safer to take the " poor" with the " good" and " rich." Here I bring prominently to notice the great defects in- separable from the Chilian process at this important mine, in- asmuch as it realizes little or nothing, but from the free gold in the ore, leaving that which is combined tenaciously, whether chemically or mechanically, in the sulphurets unrealized. Professor Genth, after careful examination, reports in 1871, that "down to that year only 20 per cent, of the gold in the ore treated was obtained by the Chilian or other pro- cesses used from the beginning ; leaving 80 per cent, lost on account of the imperfect process of the extractions of the gold." Applying Genth's ratios of per cent., or of the realized and unrealized, prior to 1871, to Crosby's estimate of the total amount of gold produced from the mine, it is easy to see there must have been in all the ore worked by all parties, $24,600,000 worth, and as $5,000,000 have been saved, $19,600,000 of gold in the ore must have been unrealized, or lost. The inability by the processes used to subdue the sul- phurets, and the non-prevention, in the extraction of the free gold, of the attenuated particles escaping before amal- gamating, are the chief causes of the enormous loss. On a careful analysis of data given me by Mr. Howes himself I find the cost for milling by the Chilian process in his mill, has averaged $13.64 per ton of ore worked. He told me his mill, running continually with three Chilian 14 stones with the requisite crushers, drags, rockers, etc., 18 hours (the day's work), treated seven tons per day. He gave as the running cost of raising the ore to the sur- face and transportation to the mill, $7 per ton. In going back of Mr. Howes' operations, and even in- cluding his own, it is probably impossible for any one to ascertain more accurately than Mr. Crosby has estimated what the whole amount realized from the mine has cost under managements good, bad, and indifferent. The high price, which is increasing, and the inevitable loss of mercury floating oS" in the process of amalgamating and carrying with it much of the free gold, in minute particles, are heavy drawbacks upon the profits of this Chilian process. Tailings or scoria, from former workings, have been accumulating since 1842, and, notwithstanding the dissipa- tion, there is a large quantity in the immediate vicinity of the mine still left, which, having gone through the crushing and pulverizing operations of the Chilian mill, and having been subjected so long to the influence of the atmosphere, are in a favorable condition to be worked over by any pro- cess that can extract gold and silver from sulphurets. These, I find, extend for miles down the ravines, where they have been washed by the freshets. These tailings, in my opinion, possess value. VI. The Crosby Process for Extracting not only THE Free Gold, but likewise the Gold and Silver WITH IT, WHICH ARE TENACIOUSLY HELD COMBINED IN THE SULPHUKET OrES ; ALSO FOR EXTRACTING THE Copper contained in them. After recognizing the enormous loss of gold at the Gold Hill Mine, to say nothing of the vast amounts lost from like causes at other mines in our country, we shall be able to appreciate the ingenious eftbrts that have been exerted in the struggle to overcome these obstinate sulphuret ores. Of all who have entered the arena for this important pur- 15 pose, Mr. Crosby, after years of patient study, labor, and large expenditure of money, regulated by a highly scientific and practical mind, seems to be the only one who has suc- cessfully accomplished the desideratum of extracting the most valuable of the metals from sulphuret ores upon a scale large enough to meet the demands of the gold and silver and copper mining wants of our extended country. And there is no doubt in my mind that ere long this valua- ble practical process will be introduced in foreign countries wherever the sulphuret ores exist. Brief Description of the Crosby Process. The ore is thrown by hand into a crusher, which reduces the lumps to the size of a hickory nut and smaller; thence passing into a pulverizing machine it is reduced to the size that would go through a mesh of 8 or 10 to the inch ; thence passing into a heated cylinder which revolves, carrying the ore around with it, the ore becomes roasted and all the sulphur utterly burnt out, the fumes and delete- rious gases escaping through a funnel-shaped chimney into the upper air, and thus keeping the atmosphere in the mill healthy for the operatives. After the ore is sufficiently roasted to completely de- sulphurize it, it immediately passes through a cooling trough or tube, laid in cold water, and thence into a burr m.ill, where between the upper and nether stones it is ground to powder. In this state the ore is elevated into leaching tubs, into which water is now also admitted, and the leaching of the ore is continued six hours; then the water is drawn off into appropriate vessels in which the copper is precipitated by iron, and saved. After this, the ore pulp, which is in a condition of paste freed from copper, passes into wooden amalgamating tanks, into which the mercury is let, and the mass is stirred for six hours. This stirring is done by a belt from the shaft whirling the arms of the stirrer within the tanks with a properly regulated velocity. After sufficient stirring, the mass of combined 16 ore pulp and mercury is diluted with water to the brim of the tanks, and after six hours drawing off, the amalgam of gold (holding with it the silver, if any be in the ore) is found in a close strainer box at the bottom of the amalga- mating machine, and the free mercury which is left is forced, by a most ingenious contrivance, back without loss into the tank to unite with another batch of ore paste which imme- diately comes in to be amalgamated. It is evident from this description, I think, that in this process neither the attenuated particles of gold nor the mer- cury can escape during the amalgamation, as it all goes on in close confinement. If not evident from the description, one has only to examine the machine to be convinced not only of this fact, but also that all must be saved that is of any value in gold or silver contained in the ore pulp after entering the amalgamating tanks. The copper is precipi- tated and saved without being allowed to enter the amalga- mating tanks. One might think, that during the roasting, gold may escape up the chimney in free attenuated parti- cles, or in combination with gas from the sulphur; and that there may be an escape of very fine particles of gold during the grinding. But I understand Mr. Crosby — in the arrangement and mechanism of his machinery — has successfully provided for preventing these contingencies, so as to experience very little, if any, loss of gold or mercury during the whole action of the mill. The whole process, from the time when the raw ore enters the crusher to the time when the amalgam is taken from the strainer box, is by a continuous motion of the ore passing through the several machines composing the mill, until reaching the leaching tubs, with but very little labor in personal handling. The amalgamation completed, the amalgam is taken from the strainer box to be retorted in the usual way to separate the gold and silver from the mercury. The mint separates the gold from the silver, and returns to the com- pany the true value of each. The "gold buttons," so 17 called, coming from this miae are the purest, I am told, of all received at the Philadelphia mint. VII. Experimental Results of Working the Crosby Mill on a Large Scale in Virginia. Being impressed with the advantages of this new pro- cess, an association of gentlemen engaged the inventor to put up a mill, iu 1872, on the Old Dominion (undeveloped) mine in Virginia, owned by some of the associates. Diffi- cult sulphuret ores were there tried as the}' came from the Virginia, as also from the North Carolina mines, especially from the Yadkin Mine, whose ores are the most obstinate sulphurets. Tons of the sulphurets and old tailings were sent to the mill from the Gold Hill Mine, whose ores are easier to crush. The results of these experiments are par- ticularized, and duly recorded in my published pamphlet, "Discussion," of January 1, 187i. The results were, that the mill, as then constructed, with all its newness, and consequent imperfections, saved to the pocket 86 per cent, as the least, and 93 per cent, as the mean or average of all the gold the assay showed the ore and tailings to contain before treatment. VIII. Operations of Mr. Howes and the Associate Owners concerning the Mill, subsequent to the foregoing experiments. Mr. Howes, after going to witness the working of the Crosby Mill upon ores sent from his own mine, made over- tures of so liberal a character as to induce the owners of the mill to move it from Virginia to Gold Hill, and plant it on his ground, to work the sulphuret ores from his mine of average assay, as shown in former assays, of not less than $20 per ton, and from that up to $10, as he represented they would be. The points of the contract were as follows : — 1. The contract to continue in full force for ten years. 18 2. He to furnisli the ore, not less than 20 tons per day, to the mill, and to be paid therefor, out of the gross proceeds of the milling, $7 per ton. 3. He to furnish all the fuel required for running the mill at $2 per cord, delivered. 4. All the water required to be allowed gratis from the surplus of that pumped from his shafts. 5. He to allow the mill out of the gross proceeds $3 per ton for milling the ore. 6. After deducting $10 per ton from the gross proceeds, to meet items 2 and 5, the remainder of the proceeds was to be divided equally between Mr. Howes and the mill owners. Eelying in good faith upon Mr. Howes' fulfilment of his stipulations, 84 tons of steam machinery, shafting, and other parts of the mill were moved late in the autumn of 1873, and the mill re-erected, under the vigilant personal care of Mr. Crosby (with such enlargements of house, and improve- ments of parts, as the first construction had shown to be desirable), on the spot of eight acres shown on the sketch as No. 8. In February the associate owners of the mill were organ- ized into an incorporated company, under the charter cited in Chapter I. of this Eeport, by the title of " The North Carolina Gold Amalgamating Company." At the meeting of stockholders for organization, John Hulme, Esq., since deceased, of Philadelphia, was chosen President. The mill was reported to be in successful operation about the middle of March, but not yet to the capacity in machinery requisite to treat 20 tons per day. About the 23d of March last, the President, with a quorum of the Board of Directors, including the Executive Committee of the company, visited the new mill and the mine at Gold Hill. The Crosby Mill was run for some days upon several tons of ore in their presence, and proved conclusively that the 19 Crosby process is a perfect success — quite up to the capacity and advantages the inventor claims for it. The mill saved, and has cortinued to save, 86 to 95 per cent, of the gold in the ore. Only a fraction of gold was found in the tailing; there was little, if any, wastage or flowering of quicksilver: the mill was a success. But the Committee discovered very soon that unless money were advanced by the company to Mr. Howes, be could not possi- bly fulfil his agreement to furnish 20 tons of profitable ore to the mill per day, nor even 3 tons. His continual call has been for money, money, money, to repair his boilers, engines, pumps, etc., so he could furnish the ore. The company did advance its acceptances amounting to $1500, for which he was to get out and pile up at the mill 200 to 250 tons, ready to be worked as soon as it could be got ready to run. This ore was to be of extra assay, highly profitable to mill. He delivered from 50 to 100 tons : but when the time came to work it, none of it assayed, before working, more than from $8 to $12 per ton, and most of it was rejected as worthless. It was also discovered that he could not furnish fuel, as he agreed, to the Crosby Mill, without an advance of money. IX. Operations from the time of Discovering Mr. Howes' inability to fulfil his Agreements to the TIME of President Hulme's Sudden Death. Under the foregoing circumstances of Howes' non-compli- ance, it was from prudential motives thought best not to put in immediately the additional machinery requisite to enable the Crosby Mill to treat 20 tons per day, until the company could be certain of being furnished that amount to mill. Nevertheless, the mill worked on upon a few tons of ore per day, returning gold once or twice per week to the Treasurer, in quantities sufficient to accumulate proof upon proof of the great value of the process, and of the ability of a 20 ton 20 mill to return large profits, and the exceeding value of the niiue. On the 30th of March Mr. Howes made, in writing, a pro- position to Mr. Hulme for selling the mine to a joint stock company (not the mill company), with a view of improving its machinery, deepening the shafts, extending the drifts, so as to furnish 120 tons of ore per day. The mill company to erect additional mills to work this amount. Mr. Hulme had, from his own personal examinations, be- come so strongly impressed with the value of the Crosby process as applied to the ores of this mine, also of the value of the mine, that he fixed the capital stock of the proposed mining company at $1,000,000, and was about organizing the company, when he suddenly died on the 22d of April last. X. Action after Mr. Hulme's Funeral, to the 1st July, Another able gentleman and excellent financier, Dr. J. D. Mitchell, of Wellsboro', Pa., who had carefully examined into the matters of the process, and made the mine a subject of study during a protracted visit at Gold Hill, in the last winter, while the mill was being built, came forward with a well-digested plan, diftering, however, from the Hulme plan. It was this in substance : The North Carolina Gold Amalgamating Company to increase its capital stock to $1,000,000, purchase the mine, with all the property, real and personal, connected with it, thus merging the Crosby mill, and the mine and mining property all into one owner- ship, which the said company could legally do under the conditions expressed in its charter. The purchase was made, terms of payment agreed upon, and approved by the stockholders. The deed was duly ex- ecuted by Mr. Howes and wife to the company. The pro- perty was taken formal possession of by the company on the first of June. 21 Dr Mitchell was elected financial agent to negotiate the sale of $350,000 of stock, the company reserving in the treasury $50,000 of the stock for working capital for im- mediate purposes. Dr. Mitchell was also elected president to fill Mr. ITulme's place, and entered on his duties as such first of June. n.e had previously arranged with certain capitalists at a distance, with whom, on a personal interview, he was to place sufficient of the stock in his possession, to realize $150,000 in cash, as the company should need it, upon an absolute sale of the stock. He was to start on his mission 10th June, but was pros- trated by a severe attack of illness. On the 24:th, finding himself, as he thought, sufficiently recovered, he started, but before reaching his destination he was again seized with another attack, more severe than the first. He reached his home, where he has since lain, neither able to talk nor write. He dictated his resignation as president of the company 1st July, but not his fiscal agency. It is hoped by his phy- sicians he may be able in a few weeks to resume his fiscal duties. Lloyd P. Smith was elected president of the company in place of Dr. Mitchell, and accepted the appointment July 4th, 1874. Since purchasing the mine activity has prevailed under the company's General Manager there. Mr. Crosby expects to have the new mill supplied with the requisites to treat twenty tons per day, by the first of August next. The crushing rollers and burr mills are nearly finished, and will soon be shipped. Two new boilers for the Randolph shaft are to be finished in a few days ready for shipment. Two more new boilers have been ordered for the Earn- hardt shaft, but these will not be done till first of August. A new pump has been put into the water shaft (No. 9 on the sketch), and pipes laid to conduct good water that will 8 22 not injure the boilers; this pump to be worked by the en- gine-power in the Kandolph shaft house. The machinery at the Randolph and Earnhardt shafts has been put in good order, so that, as soon as the new boilers referred to can be put in, no more new machinery for the present will be required at these shafts. Since the purchase many old miners have returned to the mine and gone to mining at their own expense for i' tribute ore," which contains free gold. This ore can be profitably worked in the old mill, and Mr. Crosby has agreed to work this tribute ore for them on mutual good terms. So while the new mill has been necessarily stopped to re- ceive the two additional roasters and burr mills, the Chilian mill sends to the treasurer weekly buttons of gold from the tribute ore. The Earnhardt shaft is being sunk deeper, and the drifts are to be extended, as soon as boilers can be placed to lower the water, by extending the 700 feet level drift from the Randolph shaft, 26 feet in one direction, and 20 feet in an- other direction. Mr. Crosby expects to reach very rich ore. Mr. Crosby is utilizing all the property, of which there is much at the mine, and has reduced very materially expenses as compared with those of Mr. Howes, and will in a few months produce greater results, no doubt. 23 XL Elements or Data by which to estimate the Profits to he expected from working the Crosby Process at this Mine. 1. The sulphuret ores containing the gold are easy to pulverize and much easier to crush than quartz ores. 2. The cheapness of fuel, being from $1.25 to $1.75 per cord, delivered and piled in the yard. 3. The cheapness of living and consequent low price of labor, ranging from $1 for the best laborers, up to $3 for the best mechanics. 4. The facility for a sufficient supply of good water that will not corrode the boilers. 5. The proximity of the mine to all the principal com- mercial cities. 6. The smallness of the amount of capital yet necessary to improve the mine hj deepening the Randolph and Earn- hardt shafts, and extending the lower drifts, and opening new drifts lower down than the present drifts to strike the richer ores of the veins. 7. The general manager (A. B. Crosby) of the mine and mills and his present assistant for work above ground (Mr. Noble), both being large stockholders in the company, and Mr. C. Crosby the mining engineer, for underground work, are all intelligent, reliable, and of great experience in their several capacities. 8. The cost of treating the ore by the 20-ton crushing mill, including wear, tear, and repairs for keeping the mill up to an efficient working condition, is $4.07 per ton. The cost of a 50-ton mill is $2.57 per ton. The cost of mining, raising, and delivering the ore, after the contemplated im- provements are made, will average not exceeding $4 per ton. 9. As before stated, the Crosby process saves 86 per cent, as the least, and 98 per cent, as the average, of all the gold, silver, and copper in the ore, as shown by the assay before and after working it. It is capable of saving 99 per 24 cent., but to continue working beyond the attainment of 95 or 96 per cent, would be too much like splitting hairs. 10. The commodity produced has no fluctuation in value in the market, being in this respect far superior to all other commodities, for which the manufacturer has too often been embarrassed by instability of price. With the foregoing data any one can, by reference to the assays of the Gold Hill ores reported in the next chapter, compute for himself the probable profits to the mine and mills by working a "20-ton" or a "50-ton" mill upon any given number of tons of ore. XII. Assays of the Gold Hill Ores. This part of the report merits the close scrutiny of the company. It is the average of the assays of parcels from many different parts of the mine that determines the value of the ore in general, rather than a few assays of particularly selected specimens. Therefore, in the subjoined examples of assays, a, b, c, d, it is to be understood they are the average assays of as many different lots of ore. a. From Earnhardt shaft ia 1850, 844 tons of ore averagt d in assay $699 05 per ton b. From Earnhardt shaft in 1856, 3800 tons aver- aged (poor ore) $179 75 " c. From Randolph shaft (rich ore), in 1872, 75 tons averaged $606 06 " d. From the mine generally prior to 1872, 8325 tons averaged $ 67 33 " Giving to each lot a, h, c, d, its own special weight in the computation, I find that, for their aggregate of 13,044 tons, the mean assay was $144.05 per ton. After sinking the Eandolph and Earnhardt shaft each from 50 to 100 feet belov.^ their present bottoms and drifting about 150 feet from each at levels 50 feet below the lowest present drifts in the mine, we have every reason to believe we shall meet with a very large amount of sulphuret ores 25 certainly as rich on an average as the above mean of $144.05 per ton, and even richer in gold and copper. Mr. Howes worked 8400 tons, principally leavings of former miners and considered by them as refuse, without sinking the shafts or extending the drifts, of which in free gold, the average of assay was $72.15 per ton, without counting the gold or copper tenaciously combined in the sulphurets. Of 500 chemical analyses he has had made he informs me as follows, viz. : — The least average assay gave in gold and copper $57.50 per ton. The greatest average assay gave in gold and copper $11,656.00 per ton. The official United States assay, and the experimental assay as determined by the Crosby Mill of the old tailings of the former workings give their average or mean assay $21.91 per ton. From a recent return of the mill's working on these tail- ings for several tons, the certificate from the United States mint showed that there was realized over $22 per ton. The average of that lot before working must have been more than $23 per ton. XIII. Probable Profits to the Company from the Mine and Crosby Mills. There will be no profit in working upon ore assaying as low as $8.67 per ton by a " 20-ton" mill ; nor will there be any profit from a "50-ton" mill working on ore assaying as low as $7.06 per ton; but at these assays, the mills would just pay expenses. But for assays higher than these, the mills would return a certain net profit for the milling and mining as long as the ore does not cost over $4 per ton de- livered at the mills ; and the profit would be proportionally greater as assays should be higher. I submit the following expression of net profits working 26 by the Crosby Mills on ores of various average assays per ton of ore for each mill at the Gold Hill Mine. Average assay per Net profit per ton by a Net profit per ton by a ton. of raw ore. 20-ton mill. 50-ton mill. 17.06 $1.50 loss per ton. $0.00 per ton. 8.67 0.00 " " 1.50 profit per ton. 20.00 10.53 profit " 12.03 " " 30.00 29.83 " « 31.33 " " 4('.00 29.13 " " 30.63 " " 144.05 (mean of a, h, c d) 125.90 " " 127.40 " 200.00 177.93 " " 179.43 " 250.00 224.43 " " 225.93 " " It is calculated that the mills would work excluding Sundays, 300 days in the year. The annual profits from working on the ore of the foi e- going assay would be as follows : — Average assays per Annual net profits by a Annual net profits by a ton of raw ore. 20-ton mill. 50-tou mill. $7.06 $900.00 loss per an. $00.00 per an. 8.66 00.00 " " 2,250.00 profit per an. 20.00 6,318.00 profit " 18,045.00 " " 30.00 11,898.00 " " 31,995.00 " " '''0.00 17,478.00 " 45,995.00 " " 144.05 mean (a, 6, c, d) 75,540.00 " " 191,100.00 " 200.00 106,758.00 " " 269,145.00 " " 250 00 134,658.00 " « 338,895.00 " " There are two incidental sources of considerable profit in working by the Crosby Process to which I will briefly refer. The sulphur which is liberated in desulphurizing the ore amounts to something like 350 lbs. to the ton of ore. This can be easily utilized — converted into sulphuric acid by a very simple attachment, giving large results of this article of commerce. Again. The final tailings, after the gold and copper are extracted, I know, by actual examination, are a substance already prepared, only requiring drying and barrelling, con- stituting an excellent mineral paint, of superior color and durability. From a 20-ton mill I estimate a net profit to 27 the mill of not less than twenty-five to fifty dollars per day from utilizing this paint. By examining the foregoing expressions of profit, it is easy to see how perfectly Mr. A. B. Crosby, the general manager, is justified in the following opinions, which I quote from his letter to me. " In answer to your request for an expression of my "views of the Gold Hill Mine, I will briefly say that I "think it has been and still is, and will be, with proper " working, one of the very best in this country. I base " this view upon its history and my own observations. "It has produced, in the opinion of those who are well " acquainted with the early working of it, and who had made "fortunes themselves from it, at least five millions of dollars. " The work done on the mine could be done now, or could " then have been done with proper facilities and a proper "system of mining, including all equipments, and the mill- " ing of the ores for less than two millions — I think not to "exceed one and one-half millions of dollars. "The veins in this mine are true fissures, and have been " worked in length about one thousand feet, and in depth " from ninety to seven hundred and fifty feet, and are situ- "ated in a belt many miles in length. "Several experts, or persons acquainted with the mines " of California, Colorado, Montana, Utah, Mexico, etc., have "expressed decided opinions upon the Gold Hill Mine, cou- " current with my own. " As to the value of this mine, if based on the amount of " net proceeds, with a proper working to its full capacity, it "would be enormous. And it is well worth in dollars the " whole amount of the capital stock of the company. " The process and its cost, by which we intend to work " the ores you are well acquainted with, so I will say nothing " in regard to it. " Yours, very respectfully, (Signed) " A. B. CROSBY, Manager." 28 It is seen that the " 20-ton mill" alone working on the ore of an average assay of the mean of a, b, c, d, would return 7J per cent, dividend upon all the capital stock at par annually. A " 20 ton mill" and a " 50-ton mill" together would return 26f per cent, on the capital stock at par. And as the ore would run higher and higher in average assay as the shafts are deepened, and drifts extended, and mills for treating the ore multiplied, the returns or dividends would be vastly enlarged upon the foregoing figures. For example, one 20- and two 50-ton mills running on ore of the mean assay would return 4:6 per cent, on the par value of the stock. XIV. Policy of Working the Mine. Enough has bow been said pointing to the true policy of the Company in respect to managing their valuable proper- ty, and the policy may be clearly indicated by following, seriatim, the following estimates, A, B, C, of funds re- quired : — Estimate A. For pumping to clear llandolph shaft $2,000 For burr-mills and stones, and freight .... 1,500 For crushing-rollers and freight 800 For four new 30-horse boilers and freight .... 6,000 For fuel for July, August, and September .... 600 For services of employes July, August, September . . 2,100 For contingencies ........ 500 $13,500 Of this, $10,500 will be required between 15th July and 1st October, and $3000 by the 15th October next. And soon after the above articles in Estimate A are received at Gold Hill, the 20-ton mill will be in operation, treating 20 tons per day, except for the reduction of the copper in the ore. By the time — say 1st November next — the above Esti- 29 mate A shall have been expended, I think it quite likely the mill will be sending in handsome returns — sufficient, at all events, to carry on the pumping, the deepening of the shafts, and extending the drifts. Estimate B. Deepening both the Randolph and the Earnhardt shafts, (100 feet each) $6,000 2 winches for " stoping" 1,875 300 feet drifting at $7 per foot 2,100 Temporary contingencies . . .... 300 Timber and labor for new cribbing to the deepened parts of the shafts . . . . ' 1.000 Hoisting machine and gearing for three shafts . . . 3,000 5000 feet wire rope at 37 cts 1,8.50 Ladders for shafts 200 Platforms and roofings ....... 1,.500 Tramway from shafts to mills 1,400 8 iron cars for ore transportation at $150 .... 1.200 $20,425 I think it would be advisable to make arrangements for this (Estimate B) by providing funds to this amount by about the 1st of* November next. Hence, the amount of funds required for construction and wages of employes will be as follows: — Between 15th July end 1st October, 1874 .... ,$10,500 On the 14th October, 1874 3,000 On the 15th November, 1874 20,425 Total $33,925 Further than this there will be no necessity for funds outside the income of the mills to apply to the improve- ment of the mine to a degree contemplated for furnishing 70, or even 120 tons of profitable ore, to be milled per day. The Company should not fail, however, to provide funds in accordance with the above estimates. After the foregoing expenditures are made, and the re- turns from the mill shall justify, the following expenditure will undoubtedly be required, but no especial immediate 30 efforts need be made to raise the funds, though it is good policy to keep this prospective expenditure in view in arranging the finances of the Company: — Estimate C. (prospective). Copper apparatus for the 20-ton mill $ 6,000 Two 50-ton Crosby Mills, complete . . . . ' . 60,000 ^Renewal of cribbing in upper parts of shafts . . . 4,500 Additional hoisting machinery 3,000 Renewal of platforms and repairs to roofs . . . . 1,500 Fifty new tenement buildings, for decently housing 250 employes, and repairing some old ones. For these rent would be paid to the Company .... 10,750 Probability of new power-saving mine pumps being re- quired 10,000 Probability of more pure water than the present supply being required ; my former estimate for these water- works 7,000 $102,750 Of course it is expected that the funds in this estimate C will be realized out of the profits of the 20-ton mill as fast as needed for the prospective outlays. XV, Schedule and Cash Valuation of the Company's Property at Gold Hill. • 1. One 20-ton Crosby Mill, with all its machinery complete $22,000 2. Patent right paid for the process of working all the ore in the mine 15,000 3. Two new small tenement houses on this mill lot . . 200 4. Two good steam engines, one at the Randolph and one at Earnhardt 2,500 5. Four new 30-horse boilers, two at each shaft . . . 6,000 6. Cornish pumps in good condition in the shafts . . 15,000 7. New pump in water shaft, pipes, and reservoir . . 900 8. Hoisting apparatus, wire rope, etc., at the shafts . . 3,000 9. One Chilian Mill, with crusher, stones, rockers, drags, buddies, etc., complete . 16,000 10. Whims at the shafts 1,200 11. Platforms at the shafts 300 31 12. Roofings at the shafts $1,500 13. Mining and blacksmith tools, machine shop tools, lathes, etc. etc., shops, etc 2,500 14. Mansion house, eight acre lot and all out-houses and improvements thereon 5,000 15. 800 acres of surface of land exclusive of the ores under the surface, $5 per acre 4,000 16. 300 acres of the Lentz place on which the e are 4000 cords of wood standing ....... 1,600 17. 20,000 tons of tailings, average assay of $21.91 per ton, at SI per ton 20,000 Valuation exclusive of mine .$125,500 If we had all the money in hand for the purpose of the improvements above enumerated, they could not be placed upon the property for the sums above estimated. XVI. Valuation of the Mine Exclusive of the Value OF THE PkOPERTY SCHEDULED IN XV. On the return of Mr. John Hulme from the property of the Company last April, he expressed himself in the follow- ing terras regarding its value: "That he considered the Company's property worth at least $1,000,000; also that were he to express half of what he believed and knew re- garding the value of the mine, he would not be believed." This opinion has the more weight inasmuch as Mr. Hulme had formerly been engaged for three years in gold-mining operations in North Carolina ; and, moreover, he was of a cautious disposition, and careful to say nothing that could not be relied on with confidence. He had agreed to provide all the money necessary to develop the property when he unfortunately died. In making up my mind as to the value of this deposit of auriferous sulphurets, to say nothing of free gold, I prefer not to jump at conclusions and say the mine is or is not worth one million of dollars. This is a large sum it is true, but there are much larger sums in thousands of businesses 32 aud other property not so certain or safe from destruction as this mine. Suppose we improve the mine and add the two 50-ton mills to the property by additional outlay of $136,675 ; the « total of estimates A, B, C, we should then be in condition not only to raise 120 tons of ore per day, but we should be able to mill that amount. I Again. Suppose we should get ore for the mills to work, assaying only twenty dollars per ton, which is an extremely low estimate and very far below what would be realized from the mine ; nevertheless, upon this assay of ^20 to the ton, as the ore delivered at the mills would cost the company not to exceed $4 per ton, and the milling averaged to the three mills, $2.65 per ton, it is easy to see that the net profit of the mills would be $12.03 per ton, and the annual net profits to the company would be . . . $430,200.00. In the stated costs of mining and milling there is already included 25 per cent, per annum on the capital invested in the , machinery, etc. for wear and tear, contingencies, etc. So we have only to deduct, say ten per cent, per annum on the con- templated outlay of said $136,675, which would be$13,667.50 from the above net profits, and we shall have a net annual income from the property of $416,532.50. Suppo.se now we allow $16,532.50 as salaries to the Company's officers, and manager, etc., we shall have left $400,000. This is 10 per cent, per annum on four millions of dollars clear. And how much greater would be the valuation of the mine based, as it should be, on ore assaying not less than $40 per ton? I have thus shown how to make this mine worth not less than four millions of dollars. All of which is respectfully submitted. To T. J. CEAM, Lloyd P. Smith. Esq., OonsuUing Engineer. President, Philadelphia, July 13, 1874, APPEi^DIX. A. Charter. An Act to Incorporate the North Carolina Gold Amal- gamating Company. Sec. 1. The General Assembly of North Carolina do enact : That T. J. Cram, B. Arthur Mitchell, Au- gustine B. Crosby, Joseph Q. Mitchell, and Lloyd P. Smitli, and their associates, successors, and assigns, or any three of them, be, and they are hereby, created and made a body politic and corporate, by the name, style, and title of" The North Carolina Gold Amalffamatinoj chaner of ° the iN'ovth Company," and by such name and title shall have Carolina . , . „ , o ■■ • • Gold Ainal continual succession for the purpose of working, mm- garaat.ag ing, milling, jjurchasing, manufacturing, smelting, , . , , ■ J. ,1 Business o assaying, reducing, or otherwise treating ores, earths, tueCompa- minerals, and metals, and for building, erecting, and owning machinerj'' and fixtures for any of said pur- poses, or for sale, barter, or exchange, aud for holding, owning, leasing, mortgaging, or selling such real or personal estate, as may be necessary in connection with the other privileges herein granted, and to erect houses, mills, and other buildings upon, and otherwise improve any lands leased or held by them, and for making, buying, and selling such matters and things as appertain to their business, and shall be capable of suing and being sued, impleading and being implead- ed, and of having and using a common or corporate corporate seal, and the same to alter aud change at pleasure, and 34 of granting and receiving in its corporate capacity and name, property, real, personal, and mixed. Capital. Sec. 2. The minimum capital stock shall be one hundred thousand dollars, shall be divided into shares of not less than one hundred dollars each, with power to increase the capital stock from time to time by a majority vote of the stockholders, to a sura not ex- ceeding two millions and one half dollars. Office of the Company. Board of Directors, Officers of Company. Sec. 3. The principal oflSce of the company shall be at Gold Hill, Rowan Co., with such branch offices, located wherever they may deem proper, as may be necessary for the transaction of the business of the company, and the affairs of the company shall be man- aged by a board of directors, of such number as the stockholders may select and choose, a quorum of whom may be such number as the stockholders may name, but for the purpose of organization, the corporators herein named shall constitute the board of directors, and shall hold oflSce until their successors are elected and qualified. The otficers of the company shall be a president, and such other officers as the board of di- rectors shall name, and all offices, except president, may be abolished or combined by a majority vote of the stockholders. No indirid- ual respon- sibility. By-Laws, etc. Sec. 4. The subscriptions to the capital stock of said company shall and may be paid in such instalments, and in such manner, and in such property, real or personal, as a majority of the corporators herein named may determine, but the stockholders of this companj^ shall not be liable for any loss or damage, or responsibility beyond the assets of the said company, and the said company may make, alter, repeal, or amend such by- laws or regulations, covering all points of organiza- tion and business not herein specifically provided for, as they may deem necessary and proper. Pro- vided, the same are not inconsistent with the Consti- 35 tution of the United States, or of tl)is State, or the provisions of this act. Seo. 5. The said company may issue certificates of Certificate stock in such form, and subject to such regula- "'^ tions, as thoy may from time to time prescribe, with power also to issue bonds with coupons attached, or other evidences of debts, borrow money, and buy and sell patent-rights, and dispose of privileges, to work under, and use said patents, or portions thereof, re- serving royalties or payments under the same, in such way and manner as they may prescribe and regulate, and direct in what manner their contracts and obliga- tions shall be made and executed, and generally to do all other matters and things necessary to the prope)' and successful transaction of the business for which it is organized. Seo. 6. This act shall be in full force and effect from Date of in- and after the date of its ratification: in general assem- '^""'P'^'*'""' bl}- read three times, and ratified this 30th day of January, A.D. 1874. (Signed) J. L. ROBINSON, Speaker of the House of Representatives. (Signed) C. H. BROGDEN, President of the Senate. 86 B. New York, July lOtli, 1874. Barton H. Jenks, Esq., Philadelphia. Dear Sir: Tours of yesterday to hand. You are mistaken in understanding me to say that I had been on the Gold Hill Estate in North Carolina, but from information and reports I have received at various times from a number of disinterested persons far more competent than mj'self to judge of its value, I am thoroughly convinced that it is capable, with good management, of yielding richer returns than any other gold estate known to-day anywhere. In fact I have never heard but one opinion expressed in regard to this property, and that in support of the facts of its immense value, and that only incompetent manage- ment can stand in the way of its enormous gold pro- duction. Yours truly, CHARLES HOPKINS. C. Balance Sheet. Dr. Real Estate, $287,053 77 Patent Right, 120,000 00 Construotiou Acc't, 283,566 69 Reserve Stock, 400,000 00 Expenses, Gold Hill, 4,429 59 Bills Receivable, 7,905 02 Interest, 346 51 Expenses, 1,121 97 Cask, • 7,641 35 Cr. Stock Acc't, Mortgages, Bills Payable, Gold Product, Loan Acc't, $1,000,000 00 52,000 00 35,540 70 4,423 10 20,000 00 $1,111,963 80 $l,lll,9ii3 80 E. E. WILLIAM F. MITCHELL, Treasurer, Pbii.adei.phia, July 15, 1S7*. OFFICE OF TUB COMPACT, y. E. Cornel' Third and Chestnut, Booms 7 < /