Volume 14 (1867) (436 pages)

158 The Mining and Seientitie Press. Machinery. STEW ART’s CELEBRATED HINGED Grinder and Amalgamator. Is the Cheapest and Quickest Pan Now used. It is fiut-bortomed, loses far less power in throw: Ing the pulp, and circulates the sume under tbe muller to etter advantage than any other Pan In nse, while the sterm owlng to the thinness of the cone. has a more direet effeet In heating the pulp. ig the muller plate; F the Grinding Shoe, at:ached by an adjusiable hinge joint in the pucale of the same—the bottom wearlag down even with the dies. Mr J. €. STEWART, the Inventor, has had ten years of exporlence in mechanical operations, aud may be addressed at $1n Franeisco, or called on at the Miners’ Foundry, First street, where his Pan is manutactared, and is to be scen at any time in operation. SyLitt Brodie’s Patented Improvements — Ce, Snthy =F FOR THE TREATMENT OF Gold and Silver Ores. RODIE'S PATENTED IMPROVED QUARTZ CRUSHER. The attention of all intere-ted in Mining is respeetfuliy ealled to this Improved Machine for Breaking or Spulling Quartz, or uther Rock, possessing asit does, simplieity of actton and lightness of eonstrnction, so far as is eompatible with strength and durability. In consequence ol these advantages, the advertisers are enabled to offer these machines lo the publie at the following tow terms: No.1—Or @ineh Crusher, capadle al rednelng from three to four tons of us per kour, no pieee being larger than a walnut—price...... cence No. 2—Or 15 Ineh Crusher, espable of similarly puttIng through five io six tons per hour. No. 3—Or 18-ineh Crusher, will In a similar manner e¢rush from seven to elght tons por hour..... 1 EXPLANATION OF THE ABOVE ENGRAVING. The frame is made of east iron. bound with heavy wronght tron bands. making it very strong, and at the same timo light and portable. The erushor is bolted toa wood fram: of sufficient hight to elear the fiy-whrel, and allow the crushed quite to pass off. The dotted linesshow the muyable and stationary ies Letter A represenis the eceentrie shatt by whieh the power is applied direct to the movable jaw. B represents the movable jaw, and C€ the fixed jaw Drepresentsthe link or radlus bar. E represents the belts for regulating the opening. ¥, whleh ean he regulated at pleasure, so as to graduate to the sizc to which it Is intended the qnartz shall be crushed. G represents the feed 1 by which the size ot the Tf is desig850 2. = HUNTER’S IMPROVED CONCENTRATOR. HE INVENTOR OF THE ABOVE RECENTLY IMproved Maciilne, is now prepared to take contraets for eoncentrating gold or silver ores on shures, reeelylng a @ertain per cent. of the sulphnrets as may be agreed upon; and will guarantee twenty per cent. more sulphurets thaa from any rocker or eoneentrator hullt on the Pacific cosst, saving at least ninety perecnt. of the sulphurets contalned nthe ore. The sulphurets, if desired for shipping, will eontain less than one per cent. of sand. Porsons who have sulphureted ores will do well to have their sulphurets saved; as the many falluresin minlng ean otten be attributed to tho waste of sulphurels. For partieulars, address gp One of these Machines can be seen in operatioa at the Union Founnar, In this city, up stairs. ANDREW HUNTER, Inventor, 22v13-3m San Francisco, VARNEYW’S PATENT AMALGAMATOR. These Machines Stand Unrivaled. For rapldly pulverizing and amalgamating ores, they have noequal. Noefiort has been, or willbe, spared to have then: construeted in the most perfeet manner, and of the great number now in operation, not one has everreulred repairs. The eonstant and increasing demand tor them ls sufticlent evidenee of their merlts. 4 They are constructed so asto apply stoam direetly into the pulp, or with steam bottoms, as desired. This Amslgamator Operates as Follows: The pan being filled, the motion of the muller forces the pulp to the center, where it is drawn down throngh the Br. erture and between the grindlug surlaces. Thence it is thrown to Hie perintiery into the quicksilver. The eurved plates again draw lt to the centcr, wherc it passes down, and tothe ecircumfercnce as betore. Thusltis constantly poets In a regular flow hetween the grinding surfaces nad nto the quicksilver, untli tho ore Is reduced to an Impalpable powder, and the nietal amalgamated. Setlers made on the same principle exeel all others.— They bring the pulp so constantly and pertectly In contact with quicksilver, tbat the particles are rapidly and com pletely absorhed. Mill men are Invited to exam{ne these pans and setlers for themselves, at the PACIFIC FOUNDRY, ly1 San Franclsco, Steam Pumps, FOR DRAINING MINES OR ELEVATING WATER TO ANY HIOHT. PICKERING’S GOVERNORS For Steam Engines. Giffard’s Injectors, For Feeding Bollers, STODDART’§ IRON WORKS, Beale Strect, Sua Fraaelsco, 23m a STANDARD SOAP COMPANY'S WASHING POWDER, HIS POWDER IS SUPERIOR TO ALL OTHER PREparations for washing and cleansing. It is made of pure material. and coutains nothing that will Injure the finest fabrie. Equally as good tor using in hard as soft water. One pound will make three gullons of beautiful soft soap. Puttp In wrappers of 1-lbeach, and In wooden boxes of 10-lbs bulk. Ask your grocer for a package, and test Its yirtue. Manutactured at 207 Coiamercial street, San Franclsco. 15v12q é Brown’s Filtering Heater! yor PREVENTING INCRUSTATION 1N STEAM BOILera, purifies water trom lime or any other impunity, waves tyel, saves the boiler, presents explosions, and protects Ile and property. The aost ot the Filter is soon saved in fuel and botler—repairs alone. One 1s In operation at the San Franolsao Foundry. Fremont street, where Rights can be procured, or all necded Iifurination, on application, cro or by letter, to bvli-ly AUSTIN A, WELLS, Agent. LEFPPFEL’S American Double Turbine waA TER me ac GC @ 5.4% pee WHEELS, UNEQUALEO ANO UNRIVALED IN the United States or the world, have been fully teated on this coast, more than forty being in use at thts date in Calitorma and te. Goan driving ail kinds of machinery, Saw Mills, Flour Mills, Quarlz Miils, ete., ete., ete. CaLiporma REFERKNeES.—E. Stocton, Folsom; 0. Simmons, Oaklind, (Mill at Clear Lake); Morgan Coville, Lexington, Santa Clara County; J. Y. MeMillan, Lexington Santa Clara County, sgp Send for Cirenlar, ta BNAPP & GRA NT Agents tor Calitornta. 10 Washington street, San Franeiseo Yo Quartz Miners and Others. NOTICE! WISH TO CALL YOUR ATTENTION TO A PULVERizer of my own Invention, fwhieli I have ealled the HITCHENS’ ORE PULVERIZER. Itis now In operation at the South Park Saw Mill, on Brannan street, between Third and Fourth streets. Lam prepared to reduee, loanlmpatpable powder, quartz, sulphurets, tailings, cement, manganese, charcoal, sunds, mar ble, plninbago, copper ores, ete. In view of the importanee of reducing ores, ete., to au impalpable powder, and belng satlsfied my Invention to be a perfect sueeess, I Invite all interested In the suhjeet examine It ggpPatent applicd for. ~<a lvl43m JAMES HITCHENS, . 26v13-1yq nated. The arrow on the fly-wheel shows the direetion to drive the ececntrie, which. in comhination with the Itnk, 0, glves the movabie jaw, B, 2 torward and dawnward motion at the seme time. and whieh makes the hardest roek yield and saa inlo fragments ol any desired size. ‘he ahove Crushers have been secently ereeted and are now successfully employed at Bear Valley, Mariposa conn. ty, Rawhide Ranch, Tuolumne eoumy, Excelstor Mine, ake Distrist, Nevada county, and ean besseen In operatiou atthe Fulton Foundry, First street, San Franclseo. The following testimonial respeetiny the eflecttvencss of this Crusher, has heen recelved from the Superintendent of the "Rawhide Raneh” Mine. in Tuolumne Conntv: Rawnine Rancu, Tuolumne Co., Sept. 25, 1866, Janrs Bropir, Esq., San Franciseo—My Oear Sir: It gives me pleasure to intorm you that 1 have tor the past three months had one of your lnrgest slzcd Rock Crushers in use, at the Rawhide Raneh Mining Company's Mill, which hasentirely met my expectations; and I have no hesltatlan In recommending it to all who are In need of amachine for rapidly. eheaply and properly SH aA tor the Ge : stamps. urs truly, se SON, Supt. Rawhide Ranch Quartz Mill. RROOIE'S PATENT IMPROVEO GERMAN AMALGAMATING BARREL.—This Barrel obtalned a premium at the Fair of the Mechanics’ Institue In San Francisco, In 1s64. Further particulars will be aflordecd on applieation tothe subscribers. Those Infringing the patent rights to the above Improved Barrel, are hereby Intormed that on and after the Ist No yember, i866, the royalty charged for using the same will he ralsed to the sum of $100 per Barrel. A dlagram, with explanattoas of this will be IMPORTANT —To— WORKERS OF GOLD & SILVER ORES. ae HOSE INTERESTED WILL FIND IT TO THEIR ADvantage tocallon MR. WILLIAM SLOSSON, at Prof. W. P. Blake’s Otfiee, and obtaln a Bualness Clreninr, just ublished by the WURTZ AMALGAMATION COMPANY ot ‘ew York, who have secured, wnder the Patents of Prof. Henry Wurtz, the sole and exclusive right to the use of sodinm in amalgamation. Mr. Slesson 1s prepared to Sinb Ly the licenses of the Company, with the materinl tor applying thls new and wonderful discovery, by which, in the words of President Bnrnard. of Columbia College, ‘two grains of gold may be gathered where but one was before.” 19¥13-2m STRONG & CO’S CELEBRATED UNION PAN! A fast Grinder and thorough Amalgamator; has doubte Mullers, Rolling Shoes and reverse aeion. Miilmen and others are Borpecttutiy invited to examine lhis Pan, before purehasing others, as It gives the best satisfaction. Can be secn In »peration. daily, at the San Franeisco Foundry, fremont street, 1car Atission, Ores, In loty not exeeedlng 2,000 pounds, tested hy By13 G. W. STRONG, Assayer, fonnd In the “Mining and Seicatitic Press,” of Si 29th, 1866, RRODIE'S PATENT WIND-BLAST SEPARATOR FOR DRY CRUSHING.—This Dry Crusher has been found the Most economical and effective mode of erushing ores in Mexieo, Calfornla and Nevada. Diagrams and explanations afforded on application to the suhserlbers. A drawing and fnll deserlplion of this maehIne will he found In the Mining and Selentitic Press of Sept. 22d. 1866, BRODIE & RADCLIFF, Express Bullding, 402 Montgomery street, 12v13tf San Francisco. BRUCKNER’S Mechanical Roasting Furnace AWAROEO A PREMIUM SILVER MEDAL —BY THE— The Mechanics’ Institute. Patented Deeember, 1366, cues’ FURNACES ARE NOW MANUFACTURED AFter an Improved mode of eonstructou, which OREATLY SIMPLIFIES THEIR OPERATION, and afford a much larger oxydizing surface to the actlon of heat and atmosphere. The weight of a Furnaee niae feet Iong hy four feet .In dlameter does not ex¢ecd one toa. THE IMPROVED FURNACE May he seen In operation, for desulphurizing or roasting and ehlorldizing, at Central Mill, Virginla City, Nevada. Parties wishing to ereet such Furnaces, are requested to loay their crders with 7. KALLENBERG, 19v12 416 Market street, San Franclsco. Notice to Miners, Well-Borers and Water Companies, e PRAO IS NOW PREPARED TO MANUFACTURE « Hydraulic and Artesian Weli Pipes In the hest workmantike manner, and at the lowest market rates. Having made large addittons to my stock of machinery for that branch ot business, lam prepared to fill all orders with dispatch, and guarantee eutire sutlsfaction. I also manufaeture Mississippi Stoves, of the latest improved patterns, for vessels of all classes. Also, Sblp Plumbing done. 8v13-ly Stove Store, No. 125 Clay street, below Davis. The Mercantile Gazette —aND— PRICES CURRENT, BE. D. WATERS & CO., Prop’rs. E, D. WATERS, Sen. 7. F. CRONISE, J. H. CABMANY, Office, Northeast coraer Clay aad Battery ste., SAN FRANCISCO, The Mereantile Oazette and Prices Current” 1s the only Commercial Paper ON THE PACIFIC COAST. PUBLISHED EVERY STEAMER DAY. Terms, $9 per Year, payable ia advance, THE LETTER SHEET PRICES CURKRENT For enclosure In letters, {s also puhllshed every STEAMER DAY. Bvi13tf g ps eavens AND Poa ee: Dy SO ae—e Scientifn’, S say {WhO crcutans Fry fy Miv san FRANCISCO. 55 That exeelleat paper has donned a new dreas of California ma ure.— Reese River Reveille. BLAKE'S QUARTZ BREAKER ! PRICES REDUCED! MACHINES OF ALL SIZES FOR SALE eee WM. P. BLAKE, Corner First and Mission streets, or Box 2,077 8v13f SAN FRANCISCO, Mechanical Drawings. Persons wishing Mechanieal Drawings can obtain the services of competent draughtsmen, by applylag to this ofilee, Mining and Sclentlifie Press PATENT AGENCY AtIiming and Ssientlfic Press Book and Job Mining and Selentlfic Press PRINTING Mining and Scientitie Press Office Mining and Seientitie Press DEWEY «& €o., Mining and Sclentific Press Publishers, Mining and Sclentifie Press (Established, 1860) Mining and Scientific Press San Francisco, Mining and Seleatific Press CIRCULABS FREE. Mining and Seientific Press Subseribe Now? Published Satur ays, contalning 16 pages, at $5 per year. The Mining and Scientifie Press 1s all that lts publishers elatm for lt, being a compendium of mining news on the Paelfie Coast, and a general disseminalor of all matters of terest to the meehanlcal and agrleultural portions of the State. —Dutch Flat Enquirer. Antirictan Sinx,—A Paris correspondent of the New York Evening Post has the following extract from a French journal ; One M. Tracol, arguing that silk was produced entirely out of the fibers of the mulberry leaf, rnd that the silk-worm was only a sort of spinning machine that operated on these fibers, set himself to work to discover some method for dispensing altogether with the little animal’sinterventiop, After an immense number of attempts and experiments, moro or less at random, he announces that he has at last discovered the means of spinning silk without the aid of the silk-worm— that is to say, of reducing the annual shoots of the mulberry to a mass of filaments, which (according to respectable witnesses) are indistinguishable from those of the cocoon. this account be really reliable, an immense advantage to the silk trade is about to be gained by the substitution of the stability and certainty of machinery for the present fluctuations in the life and activity of the animal spinner. The occupation of the silkworm threatens to bo gone. We don’t see it. Monsieur Tracol may, in his laboratory, succeed in making some kind of fiber from the leaves, but it must, of necessity, be entirely different from that produced in Nature's laboratory. The vital element in the process will be wanting. One might as well plan the artificial manufacture of horse-hair from grass, which is the nrtural food of the horse, as the making of silk from mulberry leaves, the natural food of the silk-worm. That mysterious force, which, through the medium of an unsightly bush, elaborates the various salts which the soil affords, into the exquisitely tinted rose-petal, is injinite; Mons, Tracol’s chemistry is finite. Perhaps the gentleman will next propose to make usa tulip from the materials to be found in a manure-heap? Tur TrvE Source or AncoHor.—All alcohol, whatever apparent form it assumes, has one origin. It comes from the destruction of sugar, and has no other source in nature. ‘itis nota production of general growth, like those substapces which are created to form the food of man. No chemist has ever yet found it among the compounds built up by plants. The solar beams that ‘reach like the finger of God across the abyss of space,” and in the laboratory of vegetation, take to pieces poisonous gases, apd put together their atoms in new groups which are capable of nourishing the animal body ; but the celestial foree never arranged together the atoms which form alcohol. On the contrary, it is a product of dissolution of the wreck and disorganization of the principles of human food. Ithasthe same origin as those malignant and fatal exhalations which constitute the genius of pestilence— the death and putrefaction of inorganic matter. Indeed, the same act which gives birth to alcohol, also brings into the world a twin compound, which is one of the promptest and subtlest of all noxious gases—carbopic acid gas. A Nationan Capinet or Minerats.—The Washington correspondent of the Alfa says: ‘Commissioner Wilson has it incoptemplation to establish in the Patent Officea museum of minerals, from the various States and Territories ; specimens of which will be solicited from miners, mining associations, and others interested in the mineralogy of this couptry. The project has not yet assumed clefinite shape, but will doubtless be carried into effect before long. The proposition is to assign a special alcove or cabinet for each State and Territory, in which will be placed specimens of all the minerals known to exist therein, to be so arranged as to afford visitors and scientific men an opportunity for examination. The Commissioner has already collected a large number of specimens, chiefly from the Western States and Territories.” Femare Lasoriw Macuine Sxors.—Somewhat of an innovation in the machine line has recently been introduced into the Morse Twist Drill and Machine Company’s Works, New Bedford, Mass., in the shape of twentyfour female machinists— young women— who do filing of a light nature, tend light machines, grind drills, and do other miscellaneous work. They are occupied in work which had been previously executed by boys—are found to be much more manageable, attentive and useful totheir employers, They work in an apartment by themselves, are very happy at their work, earn good wages, and are exposed to no improper influences,

158 The Mining and Seientitie Press. Machinery. STEW ART’s CELEBRATED HINGED Grinder and Amalgamator. Is the Cheapest and Quickest Pan Now used. It is fiut-bortomed, loses far less power in throw: Ing the pulp, and circulates the sume under tbe muller to etter advantage than any other Pan In nse, while the sterm owlng to the thinness of the cone. has a more direet effeet In heating the pulp. ig the muller plate; F the Grinding Shoe, at:ached by an adjusiable hinge joint in the pucale of the same—the bottom wearlag down even with the dies. Mr J. €. STEWART, the Inventor, has had ten years of exporlence in mechanical operations, aud may be addressed at $1n Franeisco, or called on at the Miners’ Foundry, First street, where his Pan is manutactared, and is to be scen at any time in operation. SyLitt Brodie’s Patented Improvements — Ce, Snthy =F FOR THE TREATMENT OF Gold and Silver Ores. RODIE'S PATENTED IMPROVED QUARTZ CRUSHER. The attention of all intere-ted in Mining is respeetfuliy ealled to this Improved Machine for Breaking or Spulling Quartz, or uther Rock, possessing asit does, simplieity of actton and lightness of eonstrnction, so far as is eompatible with strength and durability. In consequence ol these advantages, the advertisers are enabled to offer these machines lo the publie at the following tow terms: No.1—Or @ineh Crusher, capadle al rednelng from three to four tons of us per kour, no pieee being larger than a walnut—price............ cence No. 2—Or 15 Ineh Crusher, espable of similarly puttIng through five io six tons per hour. No. 3—Or 18-ineh Crusher, will In a similar manner e¢rush from seven to elght tons por hour......... 1 EXPLANATION OF THE ABOVE ENGRAVING. The frame is made of east iron. bound with heavy wronght tron bands. making it very strong, and at the same timo light and portable. The erushor is bolted toa wood fram: of sufficient hight to elear the fiy-whrel, and allow the crushed quite to pass off. The dotted linesshow the muyable and stationary ies Letter A represenis the eceentrie shatt by whieh the power is applied direct to the movable jaw. B represents the movable jaw, and C€ the fixed jaw Drepresentsthe link or radlus bar. E represents the belts for regulating the opening. ¥, whleh ean he regulated at pleasure, so as to graduate to the sizc to which it Is intended the qnartz shall be crushed. G represents the feed 1 by which the size ot the Tf is desig850 2. = HUNTER’S IMPROVED CONCENTRATOR. HE INVENTOR OF THE ABOVE RECENTLY IMproved Maciilne, is now prepared to take contraets for eoncentrating gold or silver ores on shures, reeelylng a @ertain per cent. of the sulphnrets as may be agreed upon; and will guarantee twenty per cent. more sulphurets thaa from any rocker or eoneentrator hullt on the Pacific cosst, saving at least ninety perecnt. of the sulphurets contalned nthe ore. The sulphurets, if desired for shipping, will eontain less than one per cent. of sand. Porsons who have sulphureted ores will do well to have their sulphurets saved; as the many falluresin minlng ean otten be attributed to tho waste of sulphurels. For partieulars, address gp One of these Machines can be seen in operatioa at the Union Founnar, In this city, up stairs. ANDREW HUNTER, Inventor, 22v13-3m San Francisco, VARNEYW’S PATENT AMALGAMATOR. These Machines Stand Unrivaled. For rapldly pulverizing and amalgamating ores, they have noequal. Noefiort has been, or willbe, spared to have then: construeted in the most perfeet manner, and of the great number now in operation, not one has everreulred repairs. The eonstant and increasing demand tor them ls sufticlent evidenee of their merlts. 4 They are constructed so asto apply stoam direetly into the pulp, or with steam bottoms, as desired. This Amslgamator Operates as Follows: The pan being filled, the motion of the muller forces the pulp to the center, where it is drawn down throngh the Br. erture and between the grindlug surlaces. Thence it is thrown to Hie perintiery into the quicksilver. The eurved plates again draw lt to the centcr, wherc it passes down, and tothe ecircumfercnce as betore. Thusltis constantly poets In a regular flow hetween the grinding surfaces nad nto the quicksilver, untli tho ore Is reduced to an Impalpable powder, and the nietal amalgamated. Setlers made on the same principle exeel all others.— They bring the pulp so constantly and pertectly In contact with quicksilver, tbat the particles are rapidly and com pletely absorhed. Mill men are Invited to exam{ne these pans and setlers for themselves, at the PACIFIC FOUNDRY, ly1 San Franclsco, Steam Pumps, FOR DRAINING MINES OR ELEVATING WATER TO ANY HIOHT. PICKERING’S GOVERNORS For Steam Engines. Giffard’s Injectors, For Feeding Bollers, STODDART’§ IRON WORKS, Beale Strect, Sua Fraaelsco, 23m a STANDARD SOAP COMPANY'S WASHING POWDER, HIS POWDER IS SUPERIOR TO ALL OTHER PREparations for washing and cleansing. It is made of pure material. and coutains nothing that will Injure the finest fabrie. Equally as good tor using in hard as soft water. One pound will make three gullons of beautiful soft soap. Puttp In wrappers of 1-lbeach, and In wooden boxes of 10-lbs bulk. Ask your grocer for a package, and test Its yirtue. Manutactured at 207 Coiamercial street, San Franclsco. 15v12q é Brown’s Filtering Heater! yor PREVENTING INCRUSTATION 1N STEAM BOILera, purifies water trom lime or any other impunity, waves tyel, saves the boiler, presents explosions, and protects Ile and property. The aost ot the Filter is soon saved in fuel and botler—repairs alone. One 1s In operation at the San Franolsao Foundry. Fremont street, where Rights can be procured, or all necded Iifurination, on application, cro or by letter, to bvli-ly AUSTIN A, WELLS, Agent. LEFPPFEL’S American Double Turbine waA TER me ac GC @ 5.4% pee WHEELS, UNEQUALEO ANO UNRIVALED IN the United States or the world, have been fully teated on this coast, more than forty being in use at thts date in Calitorma and te. Goan driving ail kinds of machinery, Saw Mills, Flour Mills, Quarlz Miils, ete., ete., ete. CaLiporma REFERKNeES.—E. Stocton, Folsom; 0. Simmons, Oaklind, (Mill at Clear Lake); Morgan Coville, Lexington, Santa Clara County; J. Y. MeMillan, Lexington Santa Clara County, sgp Send for Cirenlar, ta BNAPP & GRA NT Agents tor Calitornta. 10 Washington street, San Franeiseo Yo Quartz Miners and Others. NOTICE! WISH TO CALL YOUR ATTENTION TO A PULVERizer of my own Invention, fwhieli I have ealled the HITCHENS’ ORE PULVERIZER. Itis now In operation at the South Park Saw Mill, on Brannan street, between Third and Fourth streets. Lam prepared to reduee, loanlmpatpable powder, quartz, sulphurets, tailings, cement, manganese, charcoal, sunds, mar ble, plninbago, copper ores, ete. In view of the importanee of reducing ores, ete., to au impalpable powder, and belng satlsfied my Invention to be a perfect sueeess, I Invite all interested In the suhjeet examine It ggpPatent applicd for. ~<a lvl43m JAMES HITCHENS, . 26v13-1yq nated. The arrow on the fly-wheel shows the direetion to drive the ececntrie, which. in comhination with the Itnk, 0, glves the movabie jaw, B, 2 torward and dawnward motion at the seme time. and whieh makes the hardest roek yield and saa inlo fragments ol any desired size. ‘he ahove Crushers have been secently ereeted and are now successfully employed at Bear Valley, Mariposa conn. ty, Rawhide Ranch, Tuolumne eoumy, Excelstor Mine, ake Distrist, Nevada county, and ean besseen In operatiou atthe Fulton Foundry, First street, San Franclseo. The following testimonial respeetiny the eflecttvencss of this Crusher, has heen recelved from the Superintendent of the "Rawhide Raneh” Mine. in Tuolumne Conntv: Rawnine Rancu, Tuolumne Co., Sept. 25, 1866, Janrs Bropir, Esq., San Franciseo—My Oear Sir: It gives me pleasure to intorm you that 1 have tor the past three months had one of your lnrgest slzcd Rock Crushers in use, at the Rawhide Raneh Mining Company's Mill, which hasentirely met my expectations; and I have no hesltatlan In recommending it to all who are In need of amachine for rapidly. eheaply and properly SH aA tor the Ge : stamps. urs truly, se SON, Supt. Rawhide Ranch Quartz Mill. RROOIE'S PATENT IMPROVEO GERMAN AMALGAMATING BARREL.—This Barrel obtalned a premium at the Fair of the Mechanics’ Institue In San Francisco, In 1s64. Further particulars will be aflordecd on applieation tothe subscribers. Those Infringing the patent rights to the above Improved Barrel, are hereby Intormed that on and after the Ist No yember, i866, the royalty charged for using the same will he ralsed to the sum of $100 per Barrel. A dlagram, with explanattoas of this will be IMPORTANT —To— WORKERS OF GOLD & SILVER ORES. ae HOSE INTERESTED WILL FIND IT TO THEIR ADvantage tocallon MR. WILLIAM SLOSSON, at Prof. W. P. Blake’s Otfiee, and obtaln a Bualness Clreninr, just

ublished by the WURTZ AMALGAMATION COMPANY ot ‘ew York, who have secured, wnder the Patents of Prof. Henry Wurtz, the sole and exclusive right to the use of sodinm in amalgamation. Mr. Slesson 1s prepared to Sinb Ly the licenses of the Company, with the materinl tor applying thls new and wonderful discovery, by which, in the words of President Bnrnard. of Columbia College, ‘two grains of gold may be gathered where but one was before.” 19¥13-2m STRONG & CO’S CELEBRATED UNION PAN! A fast Grinder and thorough Amalgamator; has doubte Mullers, Rolling Shoes and reverse aeion. Miilmen and others are Borpecttutiy invited to examine lhis Pan, before purehasing others, as It gives the best satisfaction. Can be secn In »peration. daily, at the San Franeisco Foundry, fremont street, 1car Atission, Ores, In loty not exeeedlng 2,000 pounds, tested hy By13 G. W. STRONG, Assayer, fonnd In the “Mining and Seicatitic Press,” of Si 29th, 1866, RRODIE'S PATENT WIND-BLAST SEPARATOR FOR DRY CRUSHING.—This Dry Crusher has been found the Most economical and effective mode of erushing ores in Mexieo, Calfornla and Nevada. Diagrams and explanations afforded on application to the suhserlbers. A drawing and fnll deserlplion of this maehIne will he found In the Mining and Selentitic Press of Sept. 22d. 1866, BRODIE & RADCLIFF, Express Bullding, 402 Montgomery street, 12v13tf San Francisco. BRUCKNER’S Mechanical Roasting Furnace AWAROEO A PREMIUM SILVER MEDAL —BY THE— The Mechanics’ Institute. Patented Deeember, 1366, cues’ FURNACES ARE NOW MANUFACTURED AFter an Improved mode of eonstructou, which OREATLY SIMPLIFIES THEIR OPERATION, and afford a much larger oxydizing surface to the actlon of heat and atmosphere. The weight of a Furnaee niae feet Iong hy four feet .In dlameter does not ex¢ecd one toa. THE IMPROVED FURNACE May he seen In operation, for desulphurizing or roasting and ehlorldizing, at Central Mill, Virginla City, Nevada. Parties wishing to ereet such Furnaces, are requested to loay their crders with 7. KALLENBERG, 19v12 416 Market street, San Franclsco. Notice to Miners, Well-Borers and Water Companies, e PRAO IS NOW PREPARED TO MANUFACTURE « Hydraulic and Artesian Weli Pipes In the hest workmantike manner, and at the lowest market rates. Having made large addittons to my stock of machinery for that branch ot business, lam prepared to fill all orders with dispatch, and guarantee eutire sutlsfaction. I also manufaeture Mississippi Stoves, of the latest improved patterns, for vessels of all classes. Also, Sblp Plumbing done. 8v13-ly Stove Store, No. 125 Clay street, below Davis. The Mercantile Gazette —aND— PRICES CURRENT, BE. D. WATERS & CO., Prop’rs. E, D. WATERS, Sen. 7. F. CRONISE, J. H. CABMANY, Office, Northeast coraer Clay aad Battery ste., SAN FRANCISCO, The Mereantile Oazette and Prices Current” 1s the only Commercial Paper ON THE PACIFIC COAST. PUBLISHED EVERY STEAMER DAY. Terms, $9 per Year, payable ia advance, THE LETTER SHEET PRICES CURKRENT For enclosure In letters, {s also puhllshed every STEAMER DAY. Bvi13tf g ps eavens AND Poa ee: Dy SO ae—e Scientifn’, S say {WhO crcutans Fry fy Miv san FRANCISCO. 55 That exeelleat paper has donned a new dreas of California ma ure.— Reese River Reveille. BLAKE'S QUARTZ BREAKER ! PRICES REDUCED! MACHINES OF ALL SIZES FOR SALE eee WM. P. BLAKE, Corner First and Mission streets, or Box 2,077 8v13f SAN FRANCISCO, Mechanical Drawings. Persons wishing Mechanieal Drawings can obtain the services of competent draughtsmen, by applylag to this ofilee, Mining and Sclentlifie Press PATENT AGENCY AtIiming and Ssientlfic Press Book and Job Mining and Selentlfic Press PRINTING Mining and Scientitie Press Office Mining and Seientitie Press DEWEY «& €o., Mining and Sclentific Press Publishers, Mining and Sclentifie Press (Established, 1860) Mining and Scientific Press San Francisco, Mining and Seleatific Press CIRCULABS FREE. Mining and Seientific Press Subseribe Now? Published Satur ays, contalning 16 pages, at $5 per year. The Mining and Scientifie Press 1s all that lts publishers elatm for lt, being a compendium of mining news on the Paelfie Coast, and a general disseminalor of all matters of terest to the meehanlcal and agrleultural portions of the State. —Dutch Flat Enquirer. Antirictan Sinx,—A Paris correspondent of the New York Evening Post has the following extract from a French journal ; One M. Tracol, arguing that silk was produced entirely out of the fibers of the mulberry leaf, rnd that the silk-worm was only a sort of spinning machine that operated on these fibers, set himself to work to discover some method for dispensing altogether with the little animal’sinterventiop, After an immense number of attempts and experiments, moro or less at random, he announces that he has at last discovered the means of spinning silk without the aid of the silk-worm— that is to say, of reducing the annual shoots of the mulberry to a mass of filaments, which (according to respectable witnesses) are indistinguishable from those of the cocoon. this account be really reliable, an immense advantage to the silk trade is about to be gained by the substitution of the stability and certainty of machinery for the present fluctuations in the life and activity of the animal spinner. The occupation of the silkworm threatens to bo gone. We don’t see it. Monsieur Tracol may, in his laboratory, succeed in making some kind of fiber from the leaves, but it must, of necessity, be entirely different from that produced in Nature's laboratory. The vital element in the process will be wanting. One might as well plan the artificial manufacture of horse-hair from grass, which is the nrtural food of the horse, as the making of silk from mulberry leaves, the natural food of the silk-worm. That mysterious force, which, through the medium of an unsightly bush, elaborates the various salts which the soil affords, into the exquisitely tinted rose-petal, is injinite; Mons, Tracol’s chemistry is finite. Perhaps the gentleman will next propose to make usa tulip from the materials to be found in a manure-heap? Tur TrvE Source or AncoHor.—All alcohol, whatever apparent form it assumes, has one origin. It comes from the destruction of sugar, and has no other source in nature. ‘itis nota production of general growth, like those substapces which are created to form the food of man. No chemist has ever yet found it among the compounds built up by plants. The solar beams that ‘reach like the finger of God across the abyss of space,” and in the laboratory of vegetation, take to pieces poisonous gases, apd put together their atoms in new groups which are capable of nourishing the animal body ; but the celestial foree never arranged together the atoms which form alcohol. On the contrary, it is a product of dissolution of the wreck and disorganization of the principles of human food. Ithasthe same origin as those malignant and fatal exhalations which constitute the genius of pestilence— the death and putrefaction of inorganic matter. Indeed, the same act which gives birth to alcohol, also brings into the world a twin compound, which is one of the promptest and subtlest of all noxious gases—carbopic acid gas. A Nationan Capinet or Minerats.—The Washington correspondent of the Alfa says: ‘Commissioner Wilson has it incoptemplation to establish in the Patent Officea museum of minerals, from the various States and Territories ; specimens of which will be solicited from miners, mining associations, and others interested in the mineralogy of this couptry. The project has not yet assumed clefinite shape, but will doubtless be carried into effect before long. The proposition is to assign a special alcove or cabinet for each State and Territory, in which will be placed specimens of all the minerals known to exist therein, to be so arranged as to afford visitors and scientific men an opportunity for examination. The Commissioner has already collected a large number of specimens, chiefly from the Western States and Territories.” Femare Lasoriw Macuine Sxors.—Somewhat of an innovation in the machine line has recently been introduced into the Morse Twist Drill and Machine Company’s Works, New Bedford, Mass., in the shape of twentyfour female machinists— young women— who do filing of a light nature, tend light machines, grind drills, and do other miscellaneous work. They are occupied in work which had been previously executed by boys—are found to be much more manageable, attentive and useful totheir employers, They work in an apartment by themselves, are very happy at their work, earn good wages, and are exposed to no improper influences,