Volume 14 (1867) (436 pages)

120 Che Biining and Scientitic Press, Mining and Selentific Press. W. B. EWER,..0rsessecncertaeesseecneats Senton EDITOR, 2, W. M. SMITH. W. B. EWER. A, T. DEWEY. DEWEYX & CoO., Publishers. Jrriczx—No.605 Clay street, corner of Sansome, 2d floor. Terms of Sub«cription: One oopy, per annum, In advANnCe,.ssresesccrerenees: $5 00 One copy, six months, in advance, ou gay For sale by Carricrs and Newsdealers. <a Canvassing Agents. Mr. Thomas Starr is Agent for the Misive awn Screnmeric Press in Nevada, and will canvass the principal cities, towns and districts of that State. August 25, 1866. Mr. L. Felton, ls an authorized agent for this paner at Pordand Orexon. Dec. 1. 1866. ; Me, S. D. Whittaker, is our althorized Traveling Avent and Solicitor from ibis date. dan. 1, (867. San Francisco: Saturday Morning, Feb. 23, 1867. Notices to Correspondents. Diprmus. —The rationale of the production of Tremolite, which was adverted to in our notices of ‘“‘ Contributions to our Cahinet,” in last week's publication, can he explained in detail as follows: Actinolite, which is a variety of hornblende, has a composition, on the average, as follows : Lime. .sccc eee eee eee ee eeeeeeeeeee estes 14.60 per cent. Marnesia. 21.0 per cent -» 500 per cent. » 6.00 per cent. 100.00 .-14.00 per cent. 00 per ecut. 1.08 per cent. 100.00 The small quantity of fluorine, said to he always present, is dismissed from the calculation. There are aluminous tremolites, which have probably heen formed from common aluminous hornblende, as may he ohserved hy the following account of the analysis of each ; Silica. yy SANE B Analysis of C Flor : 1 IT. Time . 10,00 Magnesia 13.00 Oxide of Lron, 2000 Silica. 50.00 Alumina ! 100.00 Moreover, the specific gravity of Tremolite is only 2.93, whilst that of Actinolite is 3.03 ; the lower specific gravity of the former may not unfairly be assigned to the non-presence of the iron, which forms one of the component parts of the latter ; an ahsence which we think may be fairly attributed to the cause which we have alluded to in our former notice. In the first quoted analysis of Tremolite, probably metamorphosed from Actinolite, it would appear that a portion of magnesia was dissolved and carried away in company with the oxide of iron, by acidulated water. In the second series of analysis, viz: those miuerals associated with alumina, it would appear that it was the oxide of iron that was dissolved out. Carbonated acidulous waters, such as Seltzer, are well known, whilst sulphuric acid is found, in some cases, in large quantity, the most notable instances heing those of the Rio Tinto, in Europe, and the very extraordinary one of the Rio Vinaigre (socalled from its sour taste), in South America. J. S.—The value of a cement of whatever kind resides in its power of adhesion. It sometimes happens that this force swrpasses the cohesion of the bodies cemented. it is from this cause that trial pieces of wood, such as a ship’s mast, cemented with what is termed marine glue, when torn asunder, is usually found rent not at the planes of cementation, but along a ragged outlinein the solid wood. It is in this way that the curious feat of splitting a bank-note into two lamin is accomplished—that is, by firmly cementing the note hetween two fiat surfaces, and suhsequently sradually withdrawing the pieces cemented. The cohesion of the paper being feebler than the adhesion to the cement, the paper hecomes split througli its center. This method of splitting paper has heen long known to huhl cutters and inlayers. W. Y.—Capillary attraction is owing to the balauce of the forces of adhesion and cohesion between solids and liquids under the simultaneous influence of gravity. Adhesion is the power exerted which holds together particles of matter dissimilar in character ; cohesion is the power which holds together particles of matter possessing a similar composition. Argentiferous Lead Smelting in Humboldt County, Nevada. NUMBER ONE. Numerous efforts have heen made, at different times and places, to putin operation, on this coast, smelting works for the reduction of argentiferous lead ores, and silver ores proper, which cannot be successfully treated in the wet way ; butwe believe that in every case hitherto reported, either partial success only, or utter failure has been the result. Works for treating the simpler ores of copper (carbonates) have, however, met with better success, and considerable amount of that metal, so obtained, has found its way to this city. Extensive works for treating the poorer sulphuret copner ores, were put up, some two years ago, at Copperopolis, which were also a success, so far as securing the metal was concerned ; hut which failed in a pecuniary point of view, in consequence of the great cost of labor and fuel, A large amount of money, however, has heen sunk in unsuccessful enterprises of this kind, which owe their want of success either to inexperience, or to attempts to improve, by new ‘‘ processes,” on those which have been gradually huilt up on the results of many years of experieuce and study on the part of the ablest metallurgists of Europe. The folly of such a course ought to have been apparent to any person of ordinary business capacity. It is to be hoped that the experience of the past will teach Californians to let well enough alone, and lead them hereafter to put their confidence in experienced persous only, avoiding all “new process” men, as mere ignorant pretenders. Not that improvements are entirely out of the question ; but that they should be introduced only under the direction of capable, cautious and practical men ; such as have first made themselves well acquainted with all the old processes. But with all this unpleasant aud costly experience, it gives us pleasure to refer to at least one company which, believing that what has been so successfully carried on in the Old World, for ceuturies, could be made a like success here, has tried the experiment with the most satisfactory results ; and furnished the most iudubitable evidence that a large remunerative profit can be derived from the reduction of our rich lead and silver ores by smelting at the mine, even in the distant Humboldt River Valley. We allude to the TRINITY AND SACRAMENTO SILVER MINING COMPANY, Of the city of New York, operating under the management of Mr. A. W. Nason, as Superintendent. During the past year, ' this company has become the owner of the well known Montezuma mine, near the town of Oreana, on the Humboldt river, State of Nevada, at a cost of $100,000. They have erected smelting works of a capacity for reducing from fifteen to twenty tons of ore per day, which have been in constant opertion for nearly four months. The smelting, we are assured, has been a perfect success from the start; although the refining was attended with some considerable trouble at first, by reason of the presence of a large quantity of antimony and iron in the crude metal obtained from the ore, and the difficulty of ohtaining suitable refractory material for the construction of their furnaces. Experience and patience, however, with the avoidance of untried cxperiments, soon over~came the ohstacles, and the company is now making regular shipments of silver bullion of the highest grade, and at a fine profit. A shipment of some fifty tons of lead, will also soon be made to parties in this city, with whom lead is a leading consideration. In view of this successful result, there is good reason to expect that the mines of the Pacific Coast will soon he able to supply, not only the home demand for this useful metal, but also form a material item in our metallic exports. . THE WORKS OF THE COMPANY Consist of a mill department, for the reduction of such ores as will yield readily to the mill process—a cousiderable quantity of which is found ; a smelting department for the more refractory ores; calcining department, for removing the antimony and iron, or other base metals, from the crude products of the smeltiug furnace, and a refining department, in which the lead is separated from the silver, which latter product is shipped to this city as bullion. At present but a small portion, only, of the lead, will he shipped from the mine ; the balance being kept in store as litharge or in hars, for shipment when the cost of transportation shall he reduced hy the nearer approach to that region of the Central Pacific Railroad, the surveyed line of which passes within less than two miles of the company’s works. When the works are fully completed, which will be in a few weeks, they will have cost the company fully sixty thousand dollars, and will he able to turn out from $1,500 to $2,000 per day in silver alone. railroad will reach the locality of this mine before the close of next year. It will he completed to Orystal Peak, at the eastern part of the Sierra Nevada, 125 miles from the company’s mine, during the present year. The company is now hauling the rails over the Summit on runners, so that the same may he laid from the eastern end of the Summit tunnel to Crystal Peak by the time the tunnel itself is completed, and the track laid up to its western terminus. THE MONTEZUMA MINE, From which the company obtain their ore, is a lode consisting of an earthy carbonate of lead, intermixed hut sparsely with accicular. crystals, yielding, in metals, about as follows : Antlinony. vet ay per cent. +650 100 The yield of silver per ton of ore, varies from $80 to $200, There is very little gangue, and no perceptible amount of silica is present. No sulphurets in quantity have yet been found. The lode varies from ten to fifteen feet in thickness, and is very uuiform from wall to wall. The deepest shaft is but sixty feet. The most of the ore hitherto raised, has been taken out within five feet of the surface. The character of the lode will undouhtedly change to a sulphide as soon as the company shall have penetrated to a short distance below the present water level. Tour or five men, for the present, are ahle to take out mineral enough to keep the worksin constant operation. A want of skilled labor was felt for a time, and still contmues to some extent. Experienced hands, in this hranch of mining . and metallurgy, will do well to put them. selves in communication with this company, as employmeut there, when obtained, will in all probability he steady, and the company are paying liberal prices. As already intimated, three processes are employed in the furnace operations of the company, before the lead and silver are finally obtained as separate products. As much interest is now being felt in the working of lead ores, which are found in large quantities at various points on this coast, we have thought it would he a matter of especial interest to our readers to see a full description of the appliances and processes employed by this compauy in working their ores. We will eudeavor to descrihe these as fully as we can without the help of illustrations. Any person who has either Muspratt's Chemistry, Ure’s Dictionary of Arts and Sciences, or Lamborn’s Treatise on Silver and Lead, will fiud illustrated in those works very nearly the same furuaces which we propose to descrihe. Some slight modifications have been introduced by Mr. Nason, but not sufficient to show any essential difference of construction. ‘The ore, as it comes from the mine, is first subjected to an ordinary smeltiug operation, which, together with the subsequent processes employed ot their works iu obtaining the silver, lead, and antimony, as separate metals, will he fully described next week, [To be Continued.) It is confidently expected that the . Auriferous Sulphurets not Always Found in Connection with Quartz. The fact is now pretty well established that auriferous sulphurets are not always associated with quartz, or in fact with any vein matter whatever. We have several times alluded to the fact that gold has been found in sulphureis taken from the country rock, especially slate, at long distances from any indication of a vein or lode of any kind whatever. The writer in Dicker’s Mining Record, of October 2d, 1866, elsewhere quoted, speaking of his examinations in Australia, says: I have for many years inclined to the helief that the mundie . [auriferous sulphurets] was the original matrix of the gold ; for while I have found quartz in plenty without gold, I have never fouud mundic, whether in the lode or in the country [the inclosing rock], which has not held more or less gold. * * * * In amine I hadcharge of, I took mundie from a vein of pure mundic, about half an inch thick, running through the country, at least 100 feet from any quartz lode, from which I ohtained nearly one ounce of gold from the hundred hey of sulphurets [by roasting and smelting]. Mr. Thompson, of the Port Philip Mining Company, at Clunes, Australia, has had the same experience in experimenting with the mundie iu the vicinity of that mine, Dr. R. P. Stevens read a very interesting paper before the New York Lyceum of Natural History, on the 18th of December last, in which he alludes to the occurrence of gold in the sulphurets found associated with the slates of North Carolina, for many miles in extent. The gold is there found not only in the sulphurets, but also, in small quantities, disseminated throughout the mass of the talcose slates. Such is also the evidence of Professor Tuorneyand Professor E. Emmons, recently deceased. Prof. E. saw strata of slates, many hundred feet in width, from the decomposed surfaces of which gold could be obtained by panning. Careful examinations of the rock itself proved couclusively that this gold was derived from the decomposed rock, and not from auriferous gravel deposited upou them hy the action of water. Asimilar mass of taleose slate is now heing worked for gold in the lower portion of this State—in Amaclor county, if we are not mistakeu. The rock is taken out as from a quarry, without any indication whatever of a vein or Jode of any kind. Possibly there may be other similar localities in the State. These facts, as well as others elsewhere given in the present issue, in relation to the treatment of sulphurets, serve to show that we have much yet to learn with regard to the occurrence of gold and the manner of treating its ores. There is a large and inviting field open in this direction, hoth for the scientific and practical miner. Both are needed for its development, and they should work together for the general advancement of the great and important interest of gold mining. Gotpen Crry Cuemrcan Worxs.—This is the name of a new corporation, dating from February 19th. The object is for ‘‘the manufacturing of acids and chemicals of every description.” The amount of capital stock is $500,000, divided into 5,000 shares of $100 each. 'The incorporators are H. P. Wakelee, Thos. H. Selby, Alpheus Bull, John Parrott, Nicholas Luniug, Wiu. E. Barron, Thos. Bell, A. Hayward, Chas. E. McLane, and P, L. Weaver. Prrsonat.—Mx. Wm. R. Bradshaw, formerly attached to this office, hut recently a teacher in the Oakland public school department, has heen elected to an honorable position in the Monmouth College, Oregon. He leaves to-day on the steamer Oriflamme, for Portland. Asa young man of sterling qualities, we wish him success. : me Tasre Rocx.—The remaining portion of this noted natural curiosity, so well known to all visitors at Niagara, fell on the 14th.

120 Che Biining and Scientitic Press, Mining and Selentific Press. W. B. EWER,...0rsessecncertaeesseecneats Senton EDITOR, 2, W. M. SMITH. W. B. EWER. A, T. DEWEY. DEWEYX & CoO., Publishers. Jrriczx—No.605 Clay street, corner of Sansome, 2d floor. Terms of Sub«cription: One oopy, per annum, In advANnCe,..ssresesccrerenees: $5 00 One copy, six months, in advance, ou gay For sale by Carricrs and Newsdealers. <a Canvassing Agents. Mr. Thomas Starr is Agent for the Misive awn Screnmeric Press in Nevada, and will canvass the principal cities, towns and districts of that State. August 25, 1866. Mr. L. Felton, ls an authorized agent for this paner at Pordand Orexon. Dec. 1. 1866. ; Me, S. D. Whittaker, is our althorized Traveling Avent and Solicitor from ibis date. dan. 1, (867. San Francisco: Saturday Morning, Feb. 23, 1867. Notices to Correspondents. Diprmus. —The rationale of the production of Tremolite, which was adverted to in our notices of ‘“‘ Contributions to our Cahinet,” in last week's publication, can he explained in detail as follows: Actinolite, which is a variety of hornblende, has a composition, on the average, as follows : Lime. .sccc eee eee eee ee eeeeeeeeeee estes 14.60 per cent. Marnesia. 21.0 per cent -» 500 per cent. » 6.00 per cent. 100.00 .-14.00 per cent. 00 per ecut. 1.08 per cent. 100.00 The small quantity of fluorine, said to he always present, is dismissed from the calculation. There are aluminous tremolites, which have probably heen formed from common aluminous hornblende, as may he ohserved hy the following account of the analysis of each ; Silica.. yy SANE B Analysis of C Flor : 1 IT. Time .. 10,00 Magnesia 13.00 Oxide of Lron, 2000 Silica.. 50.00 Alumina ! 100.00 Moreover, the specific gravity of Tremolite is only 2.93, whilst that of Actinolite is 3.03 ; the lower specific gravity of the former may not unfairly be assigned to the non-presence of the iron, which forms one of the component parts of the latter ; an ahsence which we think may be fairly attributed to the cause which we have alluded to in our former notice. In the first quoted analysis of Tremolite, probably metamorphosed from Actinolite, it would appear that a portion of magnesia was dissolved and carried away in company with the oxide of iron, by acidulated water. In the second series of analysis, viz: those miuerals associated with alumina, it would appear that it was the oxide of iron that was dissolved out. Carbonated acidulous waters, such as Seltzer, are well known, whilst sulphuric acid is found, in some cases, in large quantity, the most notable instances heing those of the Rio Tinto, in Europe, and the very extraordinary one of the Rio Vinaigre (socalled from its sour taste), in South America. J. S.—The value of a cement of whatever kind resides in its power of adhesion. It sometimes happens that this force swrpasses the cohesion of the bodies cemented. it is from this cause that trial pieces of wood, such as a ship’s mast, cemented with what is termed marine glue, when torn asunder, is usually found rent not at the planes of cementation, but along a ragged outlinein the solid wood. It is in this way that the curious feat of splitting a bank-note into two lamin is accomplished—that is, by firmly cementing the note hetween two fiat surfaces, and suhsequently sradually withdrawing the pieces cemented. The cohesion of the paper being feebler than the adhesion to the cement, the paper hecomes split througli its center. This method of splitting paper has heen long known to huhl cutters and inlayers. W. Y.—Capillary attraction is owing to the balauce of the forces of adhesion and cohesion between solids and liquids under the simultaneous influence of gravity. Adhesion is the power exerted which holds together particles of matter dissimilar in character ; cohesion is the power which holds together particles of matter possessing a similar composition. Argentiferous Lead Smelting in Humboldt County, Nevada. NUMBER ONE. Numerous efforts have heen made, at different times and places, to putin operation, on this coast, smelting works for the reduction of argentiferous lead ores, and silver ores proper, which cannot be successfully treated in the wet way ; butwe believe that in every case hitherto reported, either partial success only, or utter failure has been the result. Works for treating the simpler ores of copper (carbonates) have, however, met with better success, and considerable amount of that metal, so obtained, has found its way to this city. Extensive works for treating the poorer sulphuret copner ores, were put up, some two years ago, at Copperopolis, which were also a success, so far as securing the metal was concerned ; hut which failed in a pecuniary point of view, in consequence of the great cost of labor and fuel, A large amount of money, however, has heen sunk in unsuccessful enterprises of this kind, which owe their want of success either to inexperience, or to attempts to improve, by new ‘‘ processes,” on those which have been gradually huilt up on the results of many years of experieuce and study on the part of the ablest metallurgists of Europe. The folly of such a course ought to have been apparent to any person of ordinary business capacity. It is to be hoped that the experience of the past will teach Californians to let well enough alone, and lead them hereafter to put their confidence in experienced persous only, avoiding all “new process” men, as mere ignorant pretenders. Not that improvements are entirely out of the question ; but that they should be introduced only under the direction of capable, cautious and practical men ; such as have first made themselves well acquainted with all the old processes. But with all this unpleasant aud costly experience, it gives us pleasure to refer to at least one company which, believing that what has been so successfully carried on in the Old World, for ceuturies, could be made a like success here, has tried the experiment with the most satisfactory results ; and furnished the most iudubitable evidence that a large remunerative profit can be derived from the reduction of our rich lead and silver ores by smelting at the mine, even in the distant Humboldt River Valley. We allude to the TRINITY AND SACRAMENTO SILVER MINING COMPANY, Of the city of New York, operating under the management of Mr. A. W. Nason, as Superintendent. During the past year, ' this company has become the owner of the well known Montezuma mine, near the town of Oreana, on the Humboldt river, State of Nevada, at a cost of $100,000. They have erected smelting works of a capacity for reducing from fifteen to twenty tons of ore per day, which have been in constant opertion for nearly four months. The smelting, we are assured, has been a perfect success from the start; although the refining was attended with some considerable trouble at first, by reason of the presence of a large quantity of antimony and iron in the crude metal obtained from the ore, and the difficulty of ohtaining suitable refractory material for the construction of their furnaces. Experience and patience, however, with the avoidance of untried cxperiments, soon over~came the ohstacles, and the company is now making regular shipments of silver bullion of the highest grade, and at a fine profit. A shipment of some fifty tons of lead, will also soon be made to parties in this city, with whom lead is a leading consideration. In view of this successful result, there is good reason to expect that the mines of the Pacific Coast will soon he able to supply, not only the home demand for this useful

metal, but also form a material item in our metallic exports. . THE WORKS OF THE COMPANY Consist of a mill department, for the reduction of such ores as will yield readily to the mill process—a cousiderable quantity of which is found ; a smelting department for the more refractory ores; calcining department, for removing the antimony and iron, or other base metals, from the crude products of the smeltiug furnace, and a refining department, in which the lead is separated from the silver, which latter product is shipped to this city as bullion. At present but a small portion, only, of the lead, will he shipped from the mine ; the balance being kept in store as litharge or in hars, for shipment when the cost of transportation shall he reduced hy the nearer approach to that region of the Central Pacific Railroad, the surveyed line of which passes within less than two miles of the company’s works. When the works are fully completed, which will be in a few weeks, they will have cost the company fully sixty thousand dollars, and will he able to turn out from $1,500 to $2,000 per day in silver alone. railroad will reach the locality of this mine before the close of next year. It will he completed to Orystal Peak, at the eastern part of the Sierra Nevada, 125 miles from the company’s mine, during the present year. The company is now hauling the rails over the Summit on runners, so that the same may he laid from the eastern end of the Summit tunnel to Crystal Peak by the time the tunnel itself is completed, and the track laid up to its western terminus. THE MONTEZUMA MINE, From which the company obtain their ore, is a lode consisting of an earthy carbonate of lead, intermixed hut sparsely with accicular. crystals, yielding, in metals, about as follows : Antlinony. vet ay per cent. +650 100 The yield of silver per ton of ore, varies from $80 to $200, There is very little gangue, and no perceptible amount of silica is present. No sulphurets in quantity have yet been found. The lode varies from ten to fifteen feet in thickness, and is very uuiform from wall to wall. The deepest shaft is but sixty feet. The most of the ore hitherto raised, has been taken out within five feet of the surface. The character of the lode will undouhtedly change to a sulphide as soon as the company shall have penetrated to a short distance below the present water level. Tour or five men, for the present, are ahle to take out mineral enough to keep the worksin constant operation. A want of skilled labor was felt for a time, and still contmues to some extent. Experienced hands, in this hranch of mining . and metallurgy, will do well to put them. selves in communication with this company, as employmeut there, when obtained, will in all probability he steady, and the company are paying liberal prices. As already intimated, three processes are employed in the furnace operations of the company, before the lead and silver are finally obtained as separate products. As much interest is now being felt in the working of lead ores, which are found in large quantities at various points on this coast, we have thought it would he a matter of especial interest to our readers to see a full description of the appliances and processes employed by this compauy in working their ores. We will eudeavor to descrihe these as fully as we can without the help of illustrations. Any person who has either Muspratt's Chemistry, Ure’s Dictionary of Arts and Sciences, or Lamborn’s Treatise on Silver and Lead, will fiud illustrated in those works very nearly the same furuaces which we propose to descrihe. Some slight modifications have been introduced by Mr. Nason, but not sufficient to show any essential difference of construction. ‘The ore, as it comes from the mine, is first subjected to an ordinary smeltiug operation, which, together with the subsequent processes employed ot their works iu obtaining the silver, lead, and antimony, as separate metals, will he fully described next week, [To be Continued.) It is confidently expected that the . Auriferous Sulphurets not Always Found in Connection with Quartz. The fact is now pretty well established that auriferous sulphurets are not always associated with quartz, or in fact with any vein matter whatever. We have several times alluded to the fact that gold has been found in sulphureis taken from the country rock, especially slate, at long distances from any indication of a vein or lode of any kind whatever. The writer in Dicker’s Mining Record, of October 2d, 1866, elsewhere quoted, speaking of his examinations in Australia, says: I have for many years inclined to the helief that the mundie . [auriferous sulphurets] was the original matrix of the gold ; for while I have found quartz in plenty without gold, I have never fouud mundic, whether in the lode or in the country [the inclosing rock], which has not held more or less gold. * * * * In amine I hadcharge of, I took mundie from a vein of pure mundic, about half an inch thick, running through the country, at least 100 feet from any quartz lode, from which I ohtained nearly one ounce of gold from the hundred hey of sulphurets [by roasting and smelting]. Mr. Thompson, of the Port Philip Mining Company, at Clunes, Australia, has had the same experience in experimenting with the mundie iu the vicinity of that mine, Dr. R. P. Stevens read a very interesting paper before the New York Lyceum of Natural History, on the 18th of December last, in which he alludes to the occurrence of gold in the sulphurets found associated with the slates of North Carolina, for many miles in extent. The gold is there found not only in the sulphurets, but also, in small quantities, disseminated throughout the mass of the talcose slates. Such is also the evidence of Professor Tuorneyand Professor E. Emmons, recently deceased. Prof. E. saw strata of slates, many hundred feet in width, from the decomposed surfaces of which gold could be obtained by panning. Careful examinations of the rock itself proved couclusively that this gold was derived from the decomposed rock, and not from auriferous gravel deposited upou them hy the action of water. Asimilar mass of taleose slate is now heing worked for gold in the lower portion of this State—in Amaclor county, if we are not mistakeu. The rock is taken out as from a quarry, without any indication whatever of a vein or Jode of any kind. Possibly there may be other similar localities in the State. These facts, as well as others elsewhere given in the present issue, in relation to the treatment of sulphurets, serve to show that we have much yet to learn with regard to the occurrence of gold and the manner of treating its ores. There is a large and inviting field open in this direction, hoth for the scientific and practical miner. Both are needed for its development, and they should work together for the general advancement of the great and important interest of gold mining. Gotpen Crry Cuemrcan Worxs.—This is the name of a new corporation, dating from February 19th. The object is for ‘‘the manufacturing of acids and chemicals of every description.” The amount of capital stock is $500,000, divided into 5,000 shares of $100 each. 'The incorporators are H. P. Wakelee, Thos. H. Selby, Alpheus Bull, John Parrott, Nicholas Luniug, Wiu. E. Barron, Thos. Bell, A. Hayward, Chas. E. McLane, and P, L. Weaver. Prrsonat.—Mx. Wm. R. Bradshaw, formerly attached to this office, hut recently a teacher in the Oakland public school department, has heen elected to an honorable position in the Monmouth College, Oregon. He leaves to-day on the steamer Oriflamme, for Portland. Asa young man of sterling qualities, we wish him success. : me Tasre Rocx.—The remaining portion of this noted natural curiosity, so well known to all visitors at Niagara, fell on the 14th.