Volume 12 (1866) (428 pages)

mesic — Tue New Merac THatrivy., —This new metal, which was discovered by William Crookes, of London, haz lately been described by the discoverer in the Chemical News, and preparations of it bave been placed in the Great Exhibition. Thallium in most of its ‘physical properties, resembles lead. It is not so white a3 silver, bot whet! freshly cut, it presents a brilliant metallic luster. It is soft, malleable, and easily cut with a knife, and it marks paper when rubbed npon it. leaving a yellowish streak. It has a great tendency to crystalize, and ingots of it crackle like those of tin when bout. ‘Io flame it commanicates a dvep green color, and in the spectram, according to tho researcbes of M. M. Bunson and Kirchoff, its single green ray is as sharply defined as the yellow ray of sodium. ‘Thallium rupidly tarnishesin the open air, and it becomes covered with a thin pellicle of oxide, like the oxide of tin—preserving the rest of tho metal from oxidation. Its oxide is soluble, alkaline in its nature, and it has a taste aod smell similir to potash. Sulpliuric and nitric acids dissolve it under heat, and it burns in chlvrine gas heated to 200°. It exiata in many uf the pyrites thut are used in the manufacture of sulphuric acid. TreLeGRapus axn tHe Cno.rra.—A. T. Hay, a veteran telegraph operator, says that during the period of cnulera in 1849, and for several ears, he was connected with the telegraph ines of the West, and daring tho whole tine he never knew of an’operator dying, or even being attacked with the cholera. ‘Ihe reason given is that in tolegraph offices there is always the maximum of ozone, or highly electro-negative oxygen, combining with the non-ozonized oxygen, und thereby rendering the atmosphere pure Ozone is destructive to malaria, and is ighly beneficial to health in times of cholera or other malarial epidemics. here can be bat little doubt bat that the cholera will visit the United States during tbe coming summer, and then further observations can be made, and if telegraph offices are exempt from its ravages, they will become such popular institutions that everybody will have one. BACK VOLUMES, Back filcs of the Sanine ann Sctextiric Press, from JanVary Ist, 1861, to the preven time, will bo furnished at $3 per volume of six nionths; bound In cloth, $5 A Good Financial Weekly. The Stockholder: MONITOR OF FINANCE AND INDUSTRY, Is published every Tuesday Mornlaog, At 72 William street, New York, —ClIvING— Quotatlons of all important Bonds and Stock Secnritles in the United Statey; GOVERNMENT, STATE, CITY, BANK, INSURANCE, PETROLEUM, MINING, and other miscellaneous Jolni-Stock Organizations, with the Financlal Statements of the samo; Notlees of Payment of Intcrest and Dividends— fact, all matters that can be ot Interest to Securityholders, its columns will be found replete with Important and usefinancial Information. Tile Quotations given are correct, and may be relied upon elther for the purcbase or sale of Bunds or Stocks, Tur Stocknonper Is the oaly strictly financial paper pub. dashed in the United States, TERMS, FIVE DOLLARS PER YEAR, All letters should be addressed, GEO, M. NEWTON, Publisher, bylatft 72 Willlam street, New York, Mining and Scientific Press JOB PRINTING OFFICE, No. GOS Clay street, corner of Sansome, OERTIFICATES i STOCK ~~ FOR — MINING om AND PETROLEUM > Companies Neatly Printed. Stock Certificates of all kinds embellished with wood cuts and clectrotype engravings, Wo devote special attentlon to tho excention of all kinds of work required hy Mining Companies, Machinists aud Manufactorers, Che Mining and Scientific Press, Machinery. WONTER’S PREMIUM CONCENTRATOR, AMALGAMATOR AND SEPARATOR, Awarded o Silver Mein) ee the late Mechuntes’ UNTER'S CONCENTRATORCAN RE SEEN 1N OPER. atlon ttatly af the Novelty lron Works, Fremont street. Parties wishing to purchase Concentrators will find It to thelr advantage to examine tho above miachtne before purehasing olxe where, for the followlug reasons: Ist. It will work the sands from a S-stamp battery, end save froin 1 to W ae vent. more sulphurets than aly maching balliton the Pacitie cpast. 21. The Sufptiurets are washed clean, containing teas than ten per cent. uf sand. Sd. © waste tree gold and amalgam ls amalgamated on the eopper plates; no trace of graund mercury and scarcely a trace of metal pases otf with the sand, 4tb Ms sluiplicity ls a sutticlent recommendation for Its encral use axa Concentrator. The vurlation of spced Inga Quartz Mill does not effect the working of the Machine. he suine was ilemonstrated at the late Mechanics’ Falr, when with the greatest truxcuLaaity or srexp the best of Tesults were given, 51m. There Js no clogglng or stopping to clean ont the snlphirets and sand; enosequentily no waste from any Iattention on the part pf the artenlunt. sun. ln exhiblting tha working of the machine {it Is net fun enipty), all classes of ores and taillugs, trom 30 pounds and upwards. ace conccutrated that purtles May sce it to text the machine with. Give Ita trial, ail satixfaction 1s guarantced All orders and auy Information required. addre < _ ANDREW HUNTER, Novelty Iron Works, Fremont st., San Franelsvo, 113m Ur to liv E, T, STEEN, Avent. BAUX & GUIODS Separator & Amalgamator is tho most important tmprovemontIn_minin, ever Introduccd. It was awarded the FIRST PREMIUM at the San Francisco Mcchaules’ Fair (or 1864, where It proved Itself to be the best_ Separator and Amalgnmator among all machinoty the competitors, Constructed on prinelplcs which combine Scientipic KNOWLEDGE witH Practical Experience, these Pans extract nore gold and silver trom thelr ores than any others {n use, as a fcw hours trial will demonstrate. Mlll men will find lt to thelr advantase to cmploy these pans as Separators, in addition to the ordinary Amualgators now In use, aud to re-work thelr old tailings. The cost of these pans {fs inconslderable, and thelr structure is such that tlcy ean be readlly separated In parts conveniont for packing on mules. Among the many advantaRea possessed hy BAUX & GUIOD'S Pan, are the tollowing: he trifling cost for attendance; Its small cust; Its portahil{ty; The large quantity of pulp }tcan operate uponin a Bay en time; Itmay be worked cven weeks without stopping. as !¢ !s constructed to work continuously; The complete thoroughness of the separation of the reck trom the metals and the trifling power required tu work them; They can be attached to any ordinary ruse aliparatus, Wo have the pleasure of reterring partics interested to the following partles, who have our Pan In_use: JetfersonJan Mining Company, Bowman’s Ranch, Nevada county; The French Mili, Nevada City; Crall’s Gravel Cement Works, Nevada county; Waitnan’s Chiorluatlon Works, Novada, Cal.; Gold Hill Quartz MMll, Washoe. Manufactured atthe Valcun Iron Works and San Franelseo Foundry, San Francisco, and at Heugh & Thom’s Foundry, Nevada Clty, . Foriurther particulars, or to see this Pan ih operation, call on or address J.B. BAUX, Fremont sree g nean Misslon, adjoining tho San Franctsco Iron Works, San Francisco, av8-af BLAKE'S QUARTZ BREAKER Is now extensively used for hreaking hard masses of Quartz or Ores To a size soltable for stamps. Tlicse machines are patented, and are in practical operation in CALIFORNIA, AUSTRALIA, WASHOE, ENGLAND, FRANCE, — ann — THE ATLANTIC STATES, Theso Machlnes, or circulars containing further Information pee ene them, may bo obtalned ot the nodersigned. Address, , BLAKE & TYLER, Box 2077 San Francisco Post Office. CHAS. T. BLAKE, Idaho City. 4vl0 WM, P. BLAKE, E, TYLER, Michigan Bluff. Sau Frauciseo. Hepburn & Peterson’s AMALGAMATOR. HE SUBSCRIBERS WOULD CALL THE ATTENTION of the Mining Publie to thelr Reducer and {Amalganiator, and also te thelr Separator for reducing and separating the mineral trom Geld and Sllver Ores, Manufactnred and exhlbited at the Vulcan Iron Works, Nos 137 and 189 First strect, San Franclseo. These machines secure to the Miner a more Expeditious and Perfect Reductlon and Amalgamation, a less Mabillty to accident and delay, and a greater amount of useful effect {in proportion to the powcr employed to keep them In operation than uny other machine now in use for producing simi -ar results. This fact is attested to by their general adoption and preference at all the principal Rednetion Works in Nevada; among which may be mentioncd the Gould & Curry Mill, the Silver State Reductlon Works, Zephyr Fint Mill, Ploneer Mill, Eastern Slope Mill, Phoenix MII, ete. ba This Amalgamator may bo seen In operation at the European Metallurgical Works, Bryant St. bet. 8d and 4th, {Ilustrated In tho Mining and Scientific Press, April 9th, 864.) HEPBURN & PETERSON, The Mechanles' Institute AWARDYD PREMIUM SILVER MEDAL TO BRUCKNER’S MECHANICAL ROASTING FURNACE, Parttes wishing to erect such Furnaces, aro requested to leave thelr crders with T, KALLENBERG, 12yvl1 416 Markot street, San Francisco. WUNT’sS IMPROVED WIND-MILL. THIS WIND-MILL 1S RAPIDLY taklug the place of all other Millis on the Pacific Coast. These Mllis are so slmpie In thelr constructlon, that when once bullt, thoy exo be put ln order by almost any person; and when oice In order they willrun for years without repalrs, Prices, from $5 to $1,000. ROUND AND SQUARE WATER TANKS BUILT TO ORDER. HUNT'S PUMPS Are admitted to be the best in the Market for Wind Mills, being bullt expressly ter that purpose. They can be set, and taken apart with ft common wrench, and are very easlly repaired, HUNT'S ENDLESS CHAIN ‘ TORSE POWER For Sawing Wood. ALSO, THE Self-Repulating Horse Power Isso arranged as to glve a steady motion, and is calculated to be used tor turning Wood, Iron or Brass, also for Seroll or Circular Sawing, and Is fully equal to Steam for any light work, The above Machines arc built ot the best materials, and made as Durable as Wood and Iron will make them, ALL WORK WARRANTED. Bam Yor further Particulars see small circulars. 6Y mH. O. AUNT, No. 28 Second Strect, and 108 & 112 Jessie Street, San Frau sco, 26-301 c Portabie Steam Engines ! HWondiey’s” and “ MittInger's” Make, COMBINING THE MAXIMUM OF EFFICIENCY, Durabillty. and Economy, with the Minimum of weight and Price, These Engincs are favorably known, a large 27eeE number being in use on this coast for holsting, pumping, threshing, milling and minIng purposes. __ Steam can be got up on these, Envines in fifteen minutes after reaching tho place of operation, and thotime, expense of setting boilers, machinery. and "construction account” saved, (which is often the difference hctween the successtul and unsnecessful proseention of milling enterprises,) in fact, the portable principle is the ploneer’s fricnd, and cnables him to draw engines on thelr own wheels to hls cabin door, and plant on the outermost confines of civilization the saw and grist mill, and ithas dono and wlil do more to help subdue the continent than any other of the modern motors which aro crowdlug society and normalizing tho world. Ali slzes on hand from 3 to 30 horse power, with and withont carrlages. Also, Portable Saw and Grist MIMs. For sale by TREADWELL &CO., 3vi2-3m Corner of Front and Market streets. Stevens’ Pressure Packing. Patented March Vth, 1865. Pressure Packing is now couceded, by the best engineers, to he tho most etfectual method of making aud keeping the metullic ring of pistons steam-tight, STEVENS’ PACKING has the advantago of being cheaper In first cost than the ordinary packlug, and ean be applied to old style pistons with very litUle alteraticn or detention, Tn place of testimoaials, the Patentee requests of those who are using the old spring paeking to inquire of the owners of the various cngines which now have this packing in use—some of whicb have been running from three to twelve months without heing opened, or showing any descriptiyo leak—and act upon their recommendation, Further particnlars can be had by applying to tho Patentce, ANDREW STEVENS, Master Mechanic, Alameda Railroad, or at the VULCAN IRON WORKS, whore they an be seeu, at any timo, in course of construction, Tiov8 3m* lod ANDREW STEVENS, CUMULATIVE POWER PRESS. 4 opmam ENGINE! ARROW TIE. E. C McCOMB, Agent. No. I Government House, cor. Sansome and Washington sia. 23¥10 308 ‘ 1 “INCH OYLINDER,F /UR-FOOT STROKE, IN PERfect Order. Inquire at VULCAN IRON WORKS, 137 and 189 Flratstreet, or to na VARNEYS PATENT AMALGAMATOR, These Machines Stand Unrivaled, For rapidly pulverizing and amalgamating ores, they have noeqnal, NoctYort has heen, or willbe, spared to have them constructed in the most perfeet manner, and of the great number now In oepervtion, not one has ever reulred repairs, The constant and Inercasing demand for thei {s sufficient evidence of their merits. hey are constructed so asto apply steam directly Into the pulp, or with steam bottoms, as desired. This Amalgametor Operates as Follows: The pan helng filled, the motion of the mniler forces the pulp to the center, where tls drawn down throngh the Be erture and between the grindlug surtaces, Thence It ja thrown to the pertphery into the quicksilver, The curved plates agnin draw Itto the center, where It passes down, and to tho clreumference as hetore. Tbus itis COUsTantly peas in a regular flow between the grinding surtaces an to the quieksilver, until the ore Is reduced to an Impalpable powder, and the metal amalgamated. Setlers made on the same principle excel all othors.— They bring the pulp so constantly and pertectly In contact with quicksilver, that the particles are rapidly and com pletely absorbed. Mill men are lavited te examine these pans and setlers for themsclves, at the PACIFLIO FOUNDRY, Ivl San Franclsco, Prater’s Patent Concentrator (Known as HUNGERFORD & PRATER’S Concentrator,) MANUFACTURED AT TDR San Francisco Foundry and Steam Engine Works. Corner Fremont und Misslon Streets, All orders prompily attended to. 2vl2 DEVOE, DINSMORE & Co, HUNT'S PATENT Circular Sweep Horse-Powers, For running Chnrns, Washing Machines, Grindstones, pumpin watcr, sawlng wood, and other Nght machinery. rlee, $100, at the Factory. HUNT'S PATENT SELF-REGULATINO TREAD HORSEPOWER Is superior to any machine of the klnd In the market, Pricc, wlth Governor, all complete to set to work, at the Factory, $300. Manufactured by E. 0. HUNT, 7¥10 28 Second street, San Franclsco, Important to Miners. NEW PATENT ROASTING PROCESS, AM NOW PREPARED TO OFFER TO THE MINING community a New Roasting Process, which has been ROE as novel and beneflelal by che best authorltles In urope. A Furnace can be crected in a few days ata trifilng expense, and onc man is able to Roast ten tons of Ore or Concentrated Sulphurets per day, " MORE COMPLETELY AND CHEAPER Than any other Process, <All the Sulphur Is saved, h being converted into Bisulphide of Carbon, which {s a yal. uable product, and will pay nearly all expenses. For particulars, apply to J. MOSHEIMER, 26vIl-3m 423 Washington street. QUARTZ OPERATOR'S HieAN D BOOWm A Fook for Every Intelligent Prospector, Shareholder, Miner and Machinist. ZENAS WHEELER AND P. M. RANDALL, Anthors ond Publishers, Bounp 1n Crora—idt Paczs, Doonxctwo. THE QUARTZ OPERATOR’s HAND Book is presentod to tha public as a carofuily prepared epitome of all that la valuable for the practieal operator 11 the mibe and mill, We bave hero all the most necessary hints aud directions for, testing and assaving the ores of tho yarious miuerals ; an explanation of chemieal terms; a brict and intelligible description of the numerons proeesses for roasting ores, and the extraction ol metals from their ores by amalgamation and otherwise. The work also contains an original and highly interesting discussion of the traciory and differently formed grinding plates, as applied to the reduction of ores—a suhjeet not only of special intorest to the scientitic reader, but also practically of the highest importunce to every quartz minor Prolessor Silliman, of Yale, and Hodgson, of the College of Califurniu, having examined this discussion, as submitted to them hy its author, Mr. Raudall, previous to the compilation of this work, speak of the same as not only mathematically correct, but also as of great practical value, Messrs W.R. Eckart, dr., Engineer, (late of U.S, N,,) and W, 31. Belshuw, assayer and superintendent o1 tbe S, T. M. Co., to whom the entire work was subinilted while passing through the press, speak of the same as one of high practical importance to quartz miners and mill1. gonerally. . No work hus been offered to the mining pubile of Callfornia whicb contains so much valuable information, condensed into so convenient a space as is here presented. In lts preparation, mucb eare has heeu taken to secure brevity, conciseness, und slmplicity—in fact to make it a complete aud reliable Quartz Minurk’s Haxp Boor. Yac Tublo of Contents of this hook will he found on pa 414 of the Mtnine ano Sctentiric Prrss of July Ist. 1865, sold by booksellers gencrally. Price by mail, postage paid, $1.25. Address Wheeler & Randall, at the Miring and Scieuttfic Press Oiice, San Francisco,” 2.11 Removal. The Office of the Mtnive ano Screntirio Press has been removed to the old printing stand known as Waters Bros. & Co., southwest corner of Clay and Sansome streots, opposite the Nlantle Hotel (belng one block south of our forme locatlon), where we may tiow be found, with more commadious apartments and an extensive Jos PRintinG Ovrice, San Francisco, April loth. 1885, To Printers. We have for sale, at a bargain, a Second-hand Half-Medium (argest slzo), Ruggles’ Engine Job-Printlng Press, of most approved paltern. It is m excclient condition, and warranted to work as good as new. Apply soou, at tha HIEYNEMANN & ne 26ylite 311 and 313 California street. office of the Mininc ann Scienziric Press. 1ovilte

mesic — Tue New Merac THatrivy., —This new metal, which was discovered by William Crookes, of London, haz lately been described by the discoverer in the Chemical News, and preparations of it bave been placed in the Great Exhibition. Thallium in most of its ‘physical properties, resembles lead. It is not so white a3 silver, bot whet! freshly cut, it presents a brilliant metallic luster. It is soft, malleable, and easily cut with a knife, and it marks paper when rubbed npon it. leaving a yellowish streak. It has a great tendency to crystalize, and ingots of it crackle like those of tin when bout. ‘Io flame it commanicates a dvep green color, and in the spectram, according to tho researcbes of M. M. Bunson and Kirchoff, its single green ray is as sharply defined as the yellow ray of sodium. ‘Thallium rupidly tarnishesin the open air, and it becomes covered with a thin pellicle of oxide, like the oxide of tin—preserving the rest of tho metal from oxidation. Its oxide is soluble, alkaline in its nature, and it has a taste aod smell similir to potash. Sulpliuric and nitric acids dissolve it under heat, and it burns in chlvrine gas heated to 200°. It exiata in many uf the pyrites thut are used in the manufacture of sulphuric acid. TreLeGRapus axn tHe Cno.rra.—A. T. Hay, a veteran telegraph operator, says that during the period of cnulera in 1849, and for several ears, he was connected with the telegraph ines of the West, and daring tho whole tine he never knew of an’operator dying, or even being attacked with the cholera. ‘Ihe reason given is that in tolegraph offices there is always the maximum of ozone, or highly electro-negative oxygen, combining with the non-ozonized oxygen, und thereby rendering the atmosphere pure Ozone is destructive to malaria, and is ighly beneficial to health in times of cholera or other malarial epidemics. here can be bat little doubt bat that the cholera will visit the United States during tbe coming summer, and then further observations can be made, and if telegraph offices are exempt from its ravages, they will become such popular institutions that everybody will have one. BACK VOLUMES, Back filcs of the Sanine ann Sctextiric Press, from JanVary Ist, 1861, to the preven time, will bo furnished at $3 per volume of six nionths; bound In cloth, $5 A Good Financial Weekly. The Stockholder: MONITOR OF FINANCE AND INDUSTRY, Is published every Tuesday Mornlaog, At 72 William street, New York, —ClIvING— Quotatlons of all important Bonds and Stock Secnritles in the United Statey; GOVERNMENT, STATE, CITY, BANK, INSURANCE, PETROLEUM, MINING, and other miscellaneous Jolni-Stock Organizations, with the Financlal Statements of the samo; Notlees of Payment of Intcrest and Dividends— fact, all matters that can be ot Interest to Securityholders, its columns will be found replete with Important and usefinancial Information. Tile Quotations given are correct, and may be relied upon elther for the purcbase or sale of Bunds or Stocks, Tur Stocknonper Is the oaly strictly financial paper pub. dashed in the United States, TERMS, FIVE DOLLARS PER YEAR, All letters should be addressed, GEO, M. NEWTON, Publisher, bylatft 72 Willlam street, New York, Mining and Scientific Press JOB PRINTING OFFICE, No. GOS Clay street, corner of Sansome, OERTIFICATES i STOCK ~~ FOR — MINING om AND PETROLEUM > Companies Neatly Printed. Stock Certificates of all kinds embellished with wood cuts and clectrotype engravings, Wo devote special attentlon to tho excention of all kinds of work required hy Mining Companies, Machinists aud Manufactorers, Che Mining and Scientific Press, Machinery. WONTER’S PREMIUM CONCENTRATOR, AMALGAMATOR AND SEPARATOR, Awarded o Silver Mein) ee the late Mechuntes’ UNTER'S CONCENTRATORCAN RE SEEN 1N OPER. atlon ttatly af the Novelty lron Works, Fremont street. Parties wishing to purchase Concentrators will find It to thelr advantage to examine tho above miachtne before purehasing olxe where, for the followlug reasons: Ist. It will work the sands from a S-stamp battery, end save froin 1 to W ae vent. more sulphurets than aly maching balliton the Pacitie cpast. 21. The Sufptiurets are washed clean, containing teas than ten per cent. uf sand. Sd. © waste tree gold and amalgam ls amalgamated on the eopper plates; no trace of graund mercury and scarcely a trace of metal pases otf with the sand, 4tb Ms sluiplicity ls a sutticlent recommendation for Its encral use axa Concentrator. The vurlation of spced Inga Quartz Mill does not effect the working of the Machine. he suine was ilemonstrated at the late Mechanics’ Falr, when with the greatest truxcuLaaity or srexp the best of Tesults were given, 51m. There Js no clogglng or stopping to clean ont the snlphirets and sand; enosequentily no waste from any Iattention on the part pf the artenlunt. sun. ln exhiblting tha working of the machine {it Is net fun enipty), all classes of ores and taillugs, trom 30 pounds and upwards. ace conccutrated that purtles May sce it to text the machine with. Give Ita trial, ail satixfaction 1s guarantced All orders and auy Information required. addre < _ ANDREW HUNTER, Novelty Iron Works, Fremont st., San Franelsvo, 113m Ur to liv E, T, STEEN, Avent. BAUX & GUIODS Separator & Amalgamator is tho most important tmprovemontIn_minin, ever Introduccd. It was awarded the FIRST PREMIUM at the San Francisco Mcchaules’ Fair (or 1864, where It proved Itself to be the best_ Separator and Amalgnmator among all machinoty the competitors, Constructed on prinelplcs which combine Scientipic KNOWLEDGE witH Practical Experience, these Pans extract nore gold and silver trom thelr ores than any others {n use, as a fcw hours trial will demonstrate. Mlll men will find lt to thelr advantase to cmploy these pans as Separators, in addition to the ordinary Amualgators now In use, aud to re-work thelr old tailings. The cost of these pans {fs inconslderable, and thelr structure is such that tlcy ean be readlly separated In parts conveniont for packing on mules. Among the many advantaRea possessed hy BAUX & GUIOD'S Pan, are the tollowing: he trifling cost for attendance; Its small cust; Its portahil{ty; The large quantity of pulp }tcan operate uponin a Bay en time; Itmay be worked cven weeks without stopping. as !¢ !s constructed to work continuously; The complete thoroughness of the separation of the reck trom the metals and the trifling power required tu work them; They can be attached to any ordinary ruse aliparatus, Wo have the pleasure of reterring partics interested to the following partles, who have our Pan In_use: JetfersonJan Mining Company, Bowman’s Ranch, Nevada county; The French Mili, Nevada City; Crall’s Gravel Cement Works, Nevada county; Waitnan’s Chiorluatlon Works, Novada, Cal.; Gold Hill Quartz MMll, Washoe. Manufactured atthe Valcun Iron Works and San Franelseo Foundry, San Francisco, and at Heugh & Thom’s Foundry, Nevada Clty, . Foriurther particulars, or to see this Pan ih operation, call on or address J.B. BAUX, Fremont sree g nean Misslon, adjoining tho San Franctsco Iron Works, San Francisco, av8-af BLAKE'S QUARTZ BREAKER Is now extensively used for hreaking hard masses of Quartz or Ores To a size soltable for stamps. Tlicse machines are patented, and are in practical operation in CALIFORNIA, AUSTRALIA, WASHOE, ENGLAND, FRANCE, — ann — THE ATLANTIC STATES, Theso Machlnes, or circulars containing further Information pee ene them, may bo obtalned ot the nodersigned. Address, , BLAKE & TYLER, Box 2077 San Francisco Post Office. CHAS. T. BLAKE, Idaho City. 4vl0 WM, P. BLAKE, E, TYLER, Michigan Bluff. Sau Frauciseo. Hepburn & Peterson’s AMALGAMATOR. HE SUBSCRIBERS WOULD CALL THE ATTENTION of the Mining Publie to thelr Reducer and {Amalganiator, and also te thelr Separator for reducing and separating the mineral trom Geld and Sllver Ores, Manufactnred and exhlbited at the Vulcan Iron Works, Nos 137 and 189 First strect, San Franclseo. These machines secure to the Miner a more Expeditious and Perfect Reductlon and Amalgamation, a less Mabillty to accident and delay, and a greater amount of useful effect {in proportion to the powcr employed to keep them In operation than uny other machine now in use for producing simi -ar results. This fact is attested to by their general adoption and preference at all the principal Rednetion Works in Nevada; among which may be mentioncd the Gould & Curry Mill, the Silver State Reductlon Works, Zephyr Fint Mill, Ploneer Mill, Eastern Slope Mill, Phoenix MII, ete. ba This Amalgamator may bo seen In operation at the European Metallurgical Works, Bryant St. bet. 8d and 4th, {Ilustrated In tho Mining and Scientific Press, April 9th, 864.) HEPBURN & PETERSON, The Mechanles' Institute AWARDYD PREMIUM SILVER MEDAL TO BRUCKNER’S MECHANICAL ROASTING FURNACE,

Parttes wishing to erect such Furnaces, aro requested to leave thelr crders with T, KALLENBERG, 12yvl1 416 Markot street, San Francisco. WUNT’sS IMPROVED WIND-MILL. THIS WIND-MILL 1S RAPIDLY taklug the place of all other Millis on the Pacific Coast. These Mllis are so slmpie In thelr constructlon, that when once bullt, thoy exo be put ln order by almost any person; and when oice In order they willrun for years without repalrs, Prices, from $5 to $1,000. ROUND AND SQUARE WATER TANKS BUILT TO ORDER. HUNT'S PUMPS Are admitted to be the best in the Market for Wind Mills, being bullt expressly ter that purpose. They can be set, and taken apart with ft common wrench, and are very easlly repaired, HUNT'S ENDLESS CHAIN ‘ TORSE POWER For Sawing Wood. ALSO, THE Self-Repulating Horse Power Isso arranged as to glve a steady motion, and is calculated to be used tor turning Wood, Iron or Brass, also for Seroll or Circular Sawing, and Is fully equal to Steam for any light work, The above Machines arc built ot the best materials, and made as Durable as Wood and Iron will make them, ALL WORK WARRANTED. Bam Yor further Particulars see small circulars. 6Y mH. O. AUNT, No. 28 Second Strect, and 108 & 112 Jessie Street, San Frau sco, 26-301 c Portabie Steam Engines ! HWondiey’s” and “ MittInger's” Make, COMBINING THE MAXIMUM OF EFFICIENCY, Durabillty. and Economy, with the Minimum of weight and Price, These Engincs are favorably known, a large 27eeE number being in use on this coast for holsting, pumping, threshing, milling and minIng purposes. __ Steam can be got up on these, Envines in fifteen minutes after reaching tho place of operation, and thotime, expense of setting boilers, machinery. and "construction account” saved, (which is often the difference hctween the successtul and unsnecessful proseention of milling enterprises,) in fact, the portable principle is the ploneer’s fricnd, and cnables him to draw engines on thelr own wheels to hls cabin door, and plant on the outermost confines of civilization the saw and grist mill, and ithas dono and wlil do more to help subdue the continent than any other of the modern motors which aro crowdlug society and normalizing tho world. Ali slzes on hand from 3 to 30 horse power, with and withont carrlages. Also, Portable Saw and Grist MIMs. For sale by TREADWELL &CO., 3vi2-3m Corner of Front and Market streets. Stevens’ Pressure Packing. Patented March Vth, 1865. Pressure Packing is now couceded, by the best engineers, to he tho most etfectual method of making aud keeping the metullic ring of pistons steam-tight, STEVENS’ PACKING has the advantago of being cheaper In first cost than the ordinary packlug, and ean be applied to old style pistons with very litUle alteraticn or detention, Tn place of testimoaials, the Patentee requests of those who are using the old spring paeking to inquire of the owners of the various cngines which now have this packing in use—some of whicb have been running from three to twelve months without heing opened, or showing any descriptiyo leak—and act upon their recommendation, Further particnlars can be had by applying to tho Patentce, ANDREW STEVENS, Master Mechanic, Alameda Railroad, or at the VULCAN IRON WORKS, whore they an be seeu, at any timo, in course of construction, Tiov8 3m* lod ANDREW STEVENS, CUMULATIVE POWER PRESS. 4 opmam ENGINE! ARROW TIE. E. C McCOMB, Agent. No. I Government House, cor. Sansome and Washington sia. 23¥10 308 ‘ 1 “INCH OYLINDER,F /UR-FOOT STROKE, IN PERfect Order. Inquire at VULCAN IRON WORKS, 137 and 189 Flratstreet, or to na VARNEYS PATENT AMALGAMATOR, These Machines Stand Unrivaled, For rapidly pulverizing and amalgamating ores, they have noeqnal, NoctYort has heen, or willbe, spared to have them constructed in the most perfeet manner, and of the great number now In oepervtion, not one has ever reulred repairs, The constant and Inercasing demand for thei {s sufficient evidence of their merits. hey are constructed so asto apply steam directly Into the pulp, or with steam bottoms, as desired. This Amalgametor Operates as Follows: The pan helng filled, the motion of the mniler forces the pulp to the center, where tls drawn down throngh the Be erture and between the grindlug surtaces, Thence It ja thrown to the pertphery into the quicksilver, The curved plates agnin draw Itto the center, where It passes down, and to tho clreumference as hetore. Tbus itis COUsTantly peas in a regular flow between the grinding surtaces an to the quieksilver, until the ore Is reduced to an Impalpable powder, and the metal amalgamated. Setlers made on the same principle excel all othors.— They bring the pulp so constantly and pertectly In contact with quicksilver, that the particles are rapidly and com pletely absorbed. Mill men are lavited te examine these pans and setlers for themsclves, at the PACIFLIO FOUNDRY, Ivl San Franclsco, Prater’s Patent Concentrator (Known as HUNGERFORD & PRATER’S Concentrator,) MANUFACTURED AT TDR San Francisco Foundry and Steam Engine Works. Corner Fremont und Misslon Streets, All orders prompily attended to. 2vl2 DEVOE, DINSMORE & Co, HUNT'S PATENT Circular Sweep Horse-Powers, For running Chnrns, Washing Machines, Grindstones, pumpin watcr, sawlng wood, and other Nght machinery. rlee, $100, at the Factory. HUNT'S PATENT SELF-REGULATINO TREAD HORSEPOWER Is superior to any machine of the klnd In the market, Pricc, wlth Governor, all complete to set to work, at the Factory, $300. Manufactured by E. 0. HUNT, 7¥10 28 Second street, San Franclsco, Important to Miners. NEW PATENT ROASTING PROCESS, AM NOW PREPARED TO OFFER TO THE MINING community a New Roasting Process, which has been ROE as novel and beneflelal by che best authorltles In urope. A Furnace can be crected in a few days ata trifilng expense, and onc man is able to Roast ten tons of Ore or Concentrated Sulphurets per day, " MORE COMPLETELY AND CHEAPER Than any other Process, <All the Sulphur Is saved, h being converted into Bisulphide of Carbon, which {s a yal. uable product, and will pay nearly all expenses. For particulars, apply to J. MOSHEIMER, 26vIl-3m 423 Washington street. QUARTZ OPERATOR'S HieAN D BOOWm A Fook for Every Intelligent Prospector, Shareholder, Miner and Machinist. ZENAS WHEELER AND P. M. RANDALL, Anthors ond Publishers, Bounp 1n Crora—idt Paczs, Doonxctwo. THE QUARTZ OPERATOR’s HAND Book is presentod to tha public as a carofuily prepared epitome of all that la valuable for the practieal operator 11 the mibe and mill, We bave hero all the most necessary hints aud directions for, testing and assaving the ores of tho yarious miuerals ; an explanation of chemieal terms; a brict and intelligible description of the numerons proeesses for roasting ores, and the extraction ol metals from their ores by amalgamation and otherwise. The work also contains an original and highly interesting discussion of the traciory and differently formed grinding plates, as applied to the reduction of ores—a suhjeet not only of special intorest to the scientitic reader, but also practically of the highest importunce to every quartz minor Prolessor Silliman, of Yale, and Hodgson, of the College of Califurniu, having examined this discussion, as submitted to them hy its author, Mr. Raudall, previous to the compilation of this work, speak of the same as not only mathematically correct, but also as of great practical value, Messrs W.R. Eckart, dr., Engineer, (late of U.S, N,,) and W, 31. Belshuw, assayer and superintendent o1 tbe S, T. M. Co., to whom the entire work was subinilted while passing through the press, speak of the same as one of high practical importance to quartz miners and mill1. gonerally. . No work hus been offered to the mining pubile of Callfornia whicb contains so much valuable information, condensed into so convenient a space as is here presented. In lts preparation, mucb eare has heeu taken to secure brevity, conciseness, und slmplicity—in fact to make it a complete aud reliable Quartz Minurk’s Haxp Boor. Yac Tublo of Contents of this hook will he found on pa 414 of the Mtnine ano Sctentiric Prrss of July Ist. 1865, sold by booksellers gencrally. Price by mail, postage paid, $1.25. Address Wheeler & Randall, at the Miring and Scieuttfic Press Oiice, San Francisco,” 2.11 Removal. The Office of the Mtnive ano Screntirio Press has been removed to the old printing stand known as Waters Bros. & Co., southwest corner of Clay and Sansome streots, opposite the Nlantle Hotel (belng one block south of our forme locatlon), where we may tiow be found, with more commadious apartments and an extensive Jos PRintinG Ovrice, San Francisco, April loth. 1885, To Printers. We have for sale, at a bargain, a Second-hand Half-Medium (argest slzo), Ruggles’ Engine Job-Printlng Press, of most approved paltern. It is m excclient condition, and warranted to work as good as new. Apply soou, at tha HIEYNEMANN & ne 26ylite 311 and 313 California street. office of the Mininc ann Scienziric Press. 1ovilte