Volume 35 (1877) (426 pages)

112 MINING AND SCIENTIFIC PRESS. [August 18, 1877. 202 SANSOME ST., Northeast Corner of Pine, Gpposite Pacific Bark. OUR NEW PATENT OFFICE, MINING & SCIENTIFIC PRESS OFFICE, PACIFIC RURAL PRESS OFFICE, SCIENTIFIC PRESS ENGRAVING CO., nob Sceksiin the above Igaihign way aris Len a Jease fora godly term of years,and bave seeured BETTER ACCOMMODATIONS For our constantly increasing bnsiness. We sball be happy to see our friends, one and all, and faithfully serve our patrons. August 1st, 1477. DEWEY & CO., JNO. L. BOONE. GEQ. H, STBONO, A. T. DEWEY. w. I, EWER, Scientific and Practical Books on Mining, Metallurgy, Etc. ¢ Published or issued, wholesale and retail, by DEWEY & CO., Minino anp Scizntiric Press Office, 8, F. BY GUIDO KUSTEL, Mixixe ENOINEER AND METALLURGIST. Roasting of Gold and Silver Ores, and the Extraction of their respective Metals without Quicksilver. 1870. This rare book ou the treatment of gold and silver ores without quicksilver, is liberally illustrated and crammed full of facts. It gives short and concise descriptions of various processes alld apparatus eruployed in this country and in Europe, aud explains the why and wherefore. It contains 142 pages, embracing illustrations of furaces, implements and working apparatus, It is a work of great merit, by au autbor whose reputation is unsurpassed in his specialty. Price, $2.50 coin, or $3 currency, postage free. Concentration of Ores (of all kinds), including the Chlorination Process for Gold-bearing Sulphurets, Arseniurets, and Gold and Silver Ores generally, with 120 Litbographic Diagrams. 1867. This work is unequaled by any other published, embracing the subjects treated. {ts authority is highly esteemcd and regarded by its readers; containiug, as it does, much essential information to the Miner, Millnin, Metallurgist, and other professional workers in ores and minerals, which cannot be found elsewhere in print. It also abounds throughout with facts and instructions rendered valuable by being clearly rendered together and in simple order. It contains 120 diagrams, illustrating machinery, ete., which alone are of the greatest value. PRICE, $7.50. Contents of Pamphlet on Public Lands of California, U. S. Land Laws, Map of California and Nevada, Etc. Map of California and Nevada; The Public Lands; The Land Districts; Table of Rainfall in California; Counties and Their Products; Statistics of the State at ae Instructions of the U. S. Land Commissioners.—Different Classes of Public Lands; How Lands may be Acquired; Fees of Land Office at Location; Agricultural College Scrip; Pre-emptious; Extending the Homestead Privilege, But One Homestead Allowed; Proof of Actual Settlement Necessary; Adjoining Farm Homesteads; Lands for Soldiers aud Sailors; Lands for Indiaus; Fees of Land Office and Commissions; Laws to Promote Timber Culture; Concerning Appenls; Returns of the Regjater and Receiver; Concerniug Mining Claims; Second Pre-emption Benefit, Abetract From the U.S. Statutes.—The Law Soncerniug Pre-emption; Coucerning Honiestcads; Ameudatory Act Concerning Timber; Miscellaneous Provisions; Additioual Surveys Land for Pre-emption, List of California Post Offices. Price, post paid, 50 cts. Published and sold by DEWEY & Co.5. F The Explorers’, Miners’ and Metallurgists’ Companion. Comprising a Practical Exposition of the Various Departments of Exploration, Mining, Engineering, Assaying, and Metallurgy, Containing 672 Pages and 83 Engravings BY J. 8. PHILLIPS, M. E., Of Califoruia, a Practical Operator for Thirty-four Years; Explorer, and Resident iu the Pacifie States and Territories for the past Eight Years. PRICH—bound in clotb, $10.50; in leather, $12. Porwarded by mail for 50c. extra, at the Minina ann SciENTIFIC Press Office, by DEWEY & CO. “Faith and Confidence.” LIVERMORE, Oct. 1st, 1875. Messrs. Dewey & Co., Patent Solicitors: Geatlemen— Yours of the 29th ult., containing my patent to Elevated R. R, duly received, aud I hereby return my sincere thanks to the Mmxrso AND SciEntivic Press Patent Ayency for your promptness and bouesty in regard to our business connections, I have received a flood of circulars from Eastern firms, desiring to deal with me, but] have declined any communicatiou with them and prefer as soon as circumstauces will permit, to negotiate with and patronize a home institution; one in which I have faith and wufidence—Dewey & Co. Again thanking you for your promptness in secoriug my patent, J remain, obediently yours, WM. H. HARRISON. “SPEAKS WELL,” Erc.—We would return thanks for an exchange and back numbers of the MININO AND ScienTIFIc Press, published by Dewey & Co., of San Francisco, Cal. Itis a well edited, interesting, and valuable journal and speaks well for our Pacific neighbors.— U, S. Afiiling and Manufacturing Journal. Any persou receiving this paper after giving an order to stop it, may know tbat such order has failed to reach us, or that the paper is continued inadvertently, and. they are earnestly requested to send written notice direct to us, We aim to stop the paper promptly when it is ordered diseontinued. MINING MACHINERY DEPOT. » Rock Drills, Air Compressors—Burleigh’s. Machinists’ Tools—Putnam’s. Pumps—Cope & Maxwell. trifugal Pumps—Heald & Cisco’s. gines—Haskin’s. Compound Steam Pumps—Walker’s. Bucket Plunge Pumps—Valley Machine Co. Vertical Steam Engines, Hoisting EnChemical Engines, Hook and Ladder Trucks, Fire Plunger CenExtinguishers—Babcock & Champion. Farmer’s Electro Battery. Hill's Expioders. OLINE COMPOUND FOR LUBRICATING MACHINERY, Stow’s Flexible Shaft. FLOWER'S STOP-VALVES FOR STEAM, WATER OR GAS. PLANING, TONGUING, GROOVING AND DOUBLE SURFACING MACHINERY—PUTNAM'S. MOORSE'S TWIST DRILLS. PATENT TWIST DRILL GRINDING MACHINE—VAN HAGAN'S. EMERY WHEELS AND STANDS. SAW GUMMERS—WOOD'S. STEAM INJECTORS, Rubber Hose, Packing & Belting, Wired Suction Hose, Carbolized Hose, Steam Hose. Send for Circular. PARKE & LACY, 417 Market Street, San Francisco. Questions of the Times. Which are the most reliable watches? Americau watches, they are driving those of foreign make out of the market. Which is the best American watch ? The New York watch, made at Springfield, Mass. Why is it the best watch ? Because it is substantial in all its parts, eoustructed ou the best principles and embodies those improvements which experieuce has shown to be the most desirable. Why is the New York Watch so popular? Because in buyiug one you are sure of getting a good time-keeper. While purcliasing a watch of most other Snakes is like investing in a lottery—a great many blanks to oue prize. Which is the cheapest watch? The most economical is the New York watch. For yon can get one of these excelleut time-kecpers for less than it costs in a short time to patch up a poor watch, which benefits no oue but the repairer. Where can I get a New York Watch? By addressing the loug established, practical Watchmakers and Jewelers, DEWEY & JORDAN, 433 Mont? fromery St., San Fraucisco, who will send you a descriptive price list, including the following styles of movements: “John Hancock,” Geo. Sam. Rice," “Chas. E. Hayward,” “Aaron Bagg,” ’Theo. E. Studley,” ‘Chester Woolworth," “Frederick Billings,” ‘‘Railway,” "John L. King.” ’‘E. W. Bond.” UNITED STATES Mineral Land Laws, Revised Statutes, AND INSTRUCTIONS AND FORMS UNDER THE SAME. We have just issued a pamphlet coutaining the Gencra. Mincrat Laud Laws of the United States, withinstructions of the Commissioner of the Land Office. The contents of this pamphlet coniprise all of the Governmeut laws with relation to iuineral lands of iutercst to the mining cominunity, as follows: Mining Statute of May 10th, 1872, with Instructious by the Commissioner of the Land Office; Mining Statute of July 26th, 1866; Mining Statute of July 9th, 1870. Forms required under Mining Act of May 10th, 1872, as follows: Notice of Location; Request for Survey; Applicatiou for Patent; Proof of Posting Notice aud Diaxram of the Claim, Proof that Plat and Notice remained Posted on Claim during Time of Publication; Registers’ Certificate of Posting Notice for Sixty Days, Agreemeut of Publisher; Proof of Publication; Affidavit of $500 Im? provements; Statement and Churge of Fees; Proof of Ownership and Possession in Case of Loss or absence of Mining Records; Affidavit of Citizenship, Certificate tbat no Suitis Pending; Power of Attoruey; Protest and Ad* verse Claim, Nou-Mineral Affidavit; Proof that no Kuown Veins Exist in a Placer Claim, etc. There is also givcu the U. 5, Coal Land Law and Regulations thereunder. The work comprises thirty pages, aud will be sold, postfree, for 50 ceuts. It should bein the hauds of every oue having any mining intcrests. DEWEY & CO., Publishers of the Minixe Axn ScientiFic Pruss, 8. F OUR AGENTS. Our Frienps can do much in aid of our paper and the cause of practical knowledge and scicnce, by assisting Agents in their labors of canvassing, by leuding their iufluence and encouragiug favors. We intend to send aone but worthy men. J. L, Tuasrp—Sau Francisco. B. W. Croweut—Amador, Placer, Calaveras and Tuolumne counties. G. W. McGrew—United States. A. C. Knox—Plumas, Sierra, Lassen, Placer and Nevada counties. C. N. West—Santa Cruz, Monterey and Sau Benito counties, A, C, Cnamrion—Tulare, Fresno and Inyo counties, A. U. Srrona—Lake, Napa aud Solano counties. Ep, T. Phank—Dakota Territory (Black Hills.) Josura Dimaick.—Mendocino, Humboldt and Del Norte ouuties, and Oregon. W. D. Wnire—Sau Beruurdino and Los Angeles counties. J. W. A. Wricut—Sacramento and Placer counties. B. E. Liovp—Alaimeda and Contra Costa couuties. Every new subscriber who does not receive the paper and every old subscriber not credited on the label within two weeks after paying for this paper, should write personally to the publishers without delay, to secure proper credit. This is necessary to protect us against the acts and mistakes of others. Newepaper Fileholdere., Dewey’s new elastic fileholders (black: walnut), size of the Press, Harper's Weekly and Seientijie American, for 50 cents. Larger sizes to suit any newspaper, 75 cents. By mail, postpaid, 10 cents extra. Cash with all orders, Patent allowed. “ Address, Dewey & Co., Publishers, Sau Francisco, _Murderin the First Degree s generally brought to ligbt, but thousauds of quiet murders, of which the world never hears, are cc d by the ini ion of wrong medicines. The dyspeptic, the bilious, the fever ridden, the rbeumatic, are too often poisoned witb deadly, drugs, when the persistent use of Tarrant’e Effervescent Seltzer Aperient, With proper caution as to dict and reginien, would inevitably bave worked a speedy and thorough cure in kidney diseases, bowel complaints, fevers, nervous paroxysms, and all other ailments that reduce the strength and vital power of the system, sustain, refresh, purify, cleanse and regulate it with this iuvaluable saline remedy. Sold by all druggists. W. T. GARRATT’S BRASS and BELL FOUNDRY SAN FRANCISCO. MANUFACTURER AND IMPORTER OF hurch and Steamboat BELLS and GONGS, BRASS CASTINGS of all kinds, WATER GATES, GAS GATES, FIRE HYDRANTS, DOCK HYDRANTS, GARDEN HYDRANTS A General Assortment of Engineers’ Findings. Hooker’s Patent Celebrated STEAM PUMP farThe Best and Most Durable in use. Also, & variety of other PUMPS }) For Mining and Farming Purposes. BLOWERS, For Ventilating Mines and for Smelting Works. HYDRAULIC PIPES AND NOZZLES, For Mining Purposes, Improved Journal IMPORTER OF IRON PIPE AND MALLEABLE ALL KINDS oF WORK AND COMPOSITION NAILS, AT LOWEST RATES. Metal. IRON FITTINGS. Garratt’s San Francisco Pioneer Screen Works, J. W. QUICK, Manvuracrurer, Several first premiums received for Quartz Mill Screens, and Perforated Sheet Metals ‘of every ¢ n description. 1 would call special attention to my SLOT CUT and SLOT PUNCHED SCREENS, which are attracting much attention and giving nuiversal satisfaction. ‘This is the only estahlishment on the coast devoted exclusively to the manufacture of Screens. Millowners using Battery Screens extensively can contract for large supplles at favorable rates. Orders solicitedand promptly atteuded to. 32 Fremont Street, San Francisco WORKS for ENGINEERS and STUDENTS CIVIL ENGINEERING, By J. B. Wheeler. U. 8S. A. Containing 472 poges and nearly 300 cuts, Svo, giving manyjformula in constant use among Engineers. At once practical and theoretical, 43.50. Mahan’s Civil Engineering, revised by Prof. D. V. Wood, Svo, new plates and additional text, $5.00. &z Orders for Foreign Books, Etc., forwarded Seniweekly. JOHN, WILEY & SONS, 15 Astor Place, New York. Samurre Copies. —Occasionally we send extra copies of this paper to those we belicve would be benefited by subscribing for it themselves, or who are willing to haud the paper and speak ofits merits to others. We call the ateution of such to our prospectus and terms of subscripion. pew EET & CO'g Scientiric Press Office—202 Sansome St., N. E. Cor. Pine, S. F PATENTS obtained promptly; Caveats filed expeditiouslyPateut re-issues taken out; Assignments made and re eordcd in legal form; Copies of Patents and Assignments procured; Examinations of Patents made here and at Washington; Examinations made of Assignments recorded in Washington; Examinations ordered and reported by Telegraph; Rejected cases taken up and Pat ents obtained; Interfereuces Prosecuted; Opinions ren dercd regarding the validity of Patents anu Assign ments; Every legitimate branch of Patent Soliciting Business promptly and thoroughly couducted. Our intimate knowledge of the various inventions of thicoast, and long practice in pateut busiuess, enable us to abundantly satisfy our patrons, and our success and business are constantly increasing. The shrewdest and most experienced inventors are found among our most steadfast friends and patrons, who fully appreciate our advantages in bringing valuable inventions to the notice of the public through the colunims of our widely cirenlated, first-class journals—thereby facilitating their introduction, sale and popularity. DEWEY & CO., Patent Solicitors. San Prancisco, 1877. Mining and Assaying Offices, © 504 Washington St., z SAN FRANCISCO. . E Ze o) < te 3 Posting Engines OAMINER wince) <L < INERAL ASSAYER & METALLURCIStKE Author of the Explorers’, Miners’ & Metallurgists' Companion 672 pages, $3 Illustrations (Second Edition.) Price.s 10.50 The Prospector's Patented ‘Wee Pet" Assayer.. 100.00 The Testing machine for Gold, Silver, Lead, Etc.. CHARGES FOR ASSAYING.—Gold and Silver, $3; Gold and Silver with Lead or Copper, 5; Copper, Iron, Lead or Antimony, $3; and all otber metals, $5 each. Qualitative or Quantitative Analysis of Ores, Coals, $10 or $50; Water, $25 or $75; Soils, $3 Minerals tested at $2 per Metal. N. W. SPAULDING'S $10 or S25; 5 or $50. PATENT DETACHABLE TOOTH SAWS’ Manufactory, 17 & 19 Fremont St., 5. F. MINING CLAIMS IN MONTANA. Some good fmining claims uear Sberidan, Montan Territory, can be purchased at present on very favorable Positive information can be obtained by addressD. B. NOBLE, Sheridan, M. T. Paciric Ru RAL Pr ESS, A first-class 16-page Illustrated Agricultural Weekly, filled witb fresh, valuable and interesting reading. Every farmer and ruralist should e it. It is immensely popular. Send for a sample copy. DEWEY & CO., Publishers, S. F. ernis. ing This paper is printed with Ink furniehed by Chas. Eneu Johneon & Co., 509 South 10th St., Philadelphia, &59 Gold St., Cor. Ann,N.Y,

112 MINING AND SCIENTIFIC PRESS. [August 18, 1877. 202 SANSOME ST., Northeast Corner of Pine, Gpposite Pacific Bark. OUR NEW PATENT OFFICE, MINING & SCIENTIFIC PRESS OFFICE, PACIFIC RURAL PRESS OFFICE, SCIENTIFIC PRESS ENGRAVING CO., nob Sceksiin the above Igaihign way aris Len a Jease fora godly term of years,and bave seeured BETTER ACCOMMODATIONS For our constantly increasing bnsiness. We sball be happy to see our friends, one and all, and faithfully serve our patrons. August 1st, 1477. DEWEY & CO., JNO. L. BOONE. GEQ. H, STBONO, A. T. DEWEY. w. I, EWER, Scientific and Practical Books on Mining, Metallurgy, Etc. ¢ Published or issued, wholesale and retail, by DEWEY & CO., Minino anp Scizntiric Press Office, 8, F. BY GUIDO KUSTEL, Mixixe ENOINEER AND METALLURGIST. Roasting of Gold and Silver Ores, and the Extraction of their respective Metals without Quicksilver. 1870. This rare book ou the treatment of gold and silver ores without quicksilver, is liberally illustrated and crammed full of facts. It gives short and concise descriptions of various processes alld apparatus eruployed in this country and in Europe, aud explains the why and wherefore. It contains 142 pages, embracing illustrations of furaces, implements and working apparatus, It is a work of great merit, by au autbor whose reputation is unsurpassed in his specialty. Price, $2.50 coin, or $3 currency, postage free. Concentration of Ores (of all kinds), including the Chlorination Process for Gold-bearing Sulphurets, Arseniurets, and Gold and Silver Ores generally, with 120 Litbographic Diagrams. 1867. This work is unequaled by any other published, embracing the subjects treated. {ts authority is highly esteemcd and regarded by its readers; containiug, as it does, much essential information to the Miner, Millnin, Metallurgist, and other professional workers in ores and minerals, which cannot be found elsewhere in print. It also abounds throughout with facts and instructions rendered valuable by being clearly rendered together and in simple order. It contains 120 diagrams, illustrating machinery, ete., which alone are of the greatest value. PRICE, $7.50. Contents of Pamphlet on Public Lands of California, U. S. Land Laws, Map of California and Nevada, Etc. Map of California and Nevada; The Public Lands; The Land Districts; Table of Rainfall in California; Counties and Their Products; Statistics of the State at ae Instructions of the U. S. Land Commissioners.—Different Classes of Public Lands; How Lands may be Acquired; Fees of Land Office at Location; Agricultural College Scrip; Pre-emptious; Extending the Homestead Privilege, But One Homestead Allowed; Proof of Actual Settlement Necessary; Adjoining Farm Homesteads; Lands for Soldiers aud Sailors; Lands for Indiaus; Fees of Land Office and Commissions; Laws to Promote Timber Culture; Concerning Appenls; Returns of the Regjater and Receiver; Concerniug Mining Claims; Second Pre-emption Benefit, Abetract From the U.S. Statutes.—The Law Soncerniug Pre-emption; Coucerning Honiestcads; Ameudatory Act Concerning Timber; Miscellaneous Provisions; Additioual Surveys Land for Pre-emption, List of California Post Offices. Price, post paid, 50 cts. Published and sold by DEWEY & Co.5. F The Explorers’, Miners’ and Metallurgists’ Companion. Comprising a Practical Exposition of the Various Departments of Exploration, Mining, Engineering, Assaying, and Metallurgy, Containing 672 Pages and 83 Engravings BY J. 8. PHILLIPS, M. E., Of Califoruia, a Practical Operator for Thirty-four Years; Explorer, and Resident iu the Pacifie States and Territories for the past Eight Years. PRICH—bound in clotb, $10.50; in leather, $12. Porwarded by mail for 50c. extra, at the Minina ann SciENTIFIC Press Office, by DEWEY & CO. “Faith and Confidence.” LIVERMORE, Oct. 1st, 1875. Messrs. Dewey & Co., Patent Solicitors: Geatlemen— Yours of the 29th ult., containing my patent to Elevated R. R, duly received, aud I hereby return my sincere thanks to the Mmxrso AND SciEntivic Press Patent Ayency for your promptness and bouesty in regard to our business connections, I have received a flood of circulars from Eastern firms, desiring to deal with me, but] have declined any communicatiou with them and prefer as soon as circumstauces will permit, to negotiate with and patronize a home institution; one in which I have faith and wufidence—Dewey & Co. Again thanking you for your promptness in secoriug my patent, J remain, obediently yours, WM. H. HARRISON. “SPEAKS WELL,” Erc.—We would return thanks for an exchange and back numbers of the MININO AND ScienTIFIc Press, published by Dewey & Co., of San Francisco, Cal. Itis a well edited, interesting, and valuable journal and speaks well for our Pacific neighbors.— U, S. Afiiling and Manufacturing Journal. Any persou receiving this paper after giving an order to stop it, may know tbat such order has failed to reach us, or that the paper is continued inadvertently, and. they are earnestly requested to send written notice direct to us, We aim to stop the paper promptly when it is ordered diseontinued. MINING MACHINERY DEPOT. » Rock Drills, Air Compressors—Burleigh’s. Machinists’ Tools—Putnam’s. Pumps—Cope & Maxwell. trifugal Pumps—Heald & Cisco’s. gines—Haskin’s. Compound Steam Pumps—Walker’s. Bucket Plunge Pumps—Valley Machine Co. Vertical Steam Engines, Hoisting EnChemical Engines, Hook and Ladder Trucks, Fire Plunger CenExtinguishers—Babcock & Champion. Farmer’s Electro Battery. Hill's Expioders. OLINE COMPOUND FOR LUBRICATING MACHINERY, Stow’s Flexible Shaft. FLOWER'S STOP-VALVES FOR STEAM, WATER OR GAS. PLANING, TONGUING, GROOVING AND DOUBLE SURFACING MACHINERY—PUTNAM'S. MOORSE'S TWIST DRILLS. PATENT TWIST DRILL GRINDING MACHINE—VAN HAGAN'S. EMERY WHEELS AND STANDS. SAW GUMMERS—WOOD'S. STEAM INJECTORS, Rubber Hose, Packing & Belting, Wired Suction Hose, Carbolized Hose, Steam Hose. Send for Circular. PARKE & LACY, 417 Market Street, San Francisco. Questions of the Times. Which are the most reliable watches? Americau watches, they are driving those of foreign make out of the market. Which is the best American watch ? The New York watch, made at Springfield, Mass. Why is it the best watch ? Because it is substantial in all its parts, eoustructed ou the best principles and embodies those improvements which experieuce has shown to be the most desirable. Why is the New York Watch so popular? Because in buyiug one you are sure of getting a good time-keeper. While purcliasing a watch of most other Snakes is like investing in a lottery—a great many blanks to oue prize. Which is the cheapest watch? The most economical is the New York watch. For yon can get one of these excelleut time-kecpers for less than it costs in a short time to patch up a poor watch, which benefits no oue but the repairer. Where can I get a New York Watch? By addressing the loug established, practical Watchmakers and Jewelers, DEWEY & JORDAN, 433 Mont? fromery St., San Fraucisco, who will send you a descriptive price list, including the following styles of movements: “John Hancock,” Geo. Sam. Rice," “Chas. E. Hayward,” “Aaron Bagg,” ’Theo. E. Studley,” ‘Chester Woolworth," “Frederick Billings,” ‘‘Railway,” "John L. King.” ’‘E. W. Bond.” UNITED STATES Mineral Land Laws, Revised Statutes, AND INSTRUCTIONS AND FORMS UNDER THE SAME. We have just issued a pamphlet coutaining the Gencra. Mincrat Laud Laws of the United States, withinstructions of the Commissioner of the Land Office. The contents of this pamphlet coniprise all of the Governmeut laws with relation to iuineral lands of iutercst to the mining cominunity, as follows: Mining Statute of May 10th, 1872, with Instructious by the Commissioner of the Land Office; Mining Statute of July 26th, 1866; Mining Statute of July 9th, 1870. Forms required under Mining Act of May 10th, 1872, as follows: Notice of Location; Request for Survey; Applicatiou for Patent; Proof of Posting Notice aud Diaxram of the Claim, Proof that Plat and Notice remained Posted on Claim during Time of Publication; Registers’ Certificate of Posting Notice for Sixty Days, Agreemeut of Publisher; Proof of Publication; Affidavit of $500 Im? provements; Statement and Churge of Fees; Proof of Ownership and Possession in Case of Loss or absence of Mining Records; Affidavit of Citizenship, Certificate tbat

no Suitis Pending; Power of Attoruey; Protest and Ad* verse Claim, Nou-Mineral Affidavit; Proof that no Kuown Veins Exist in a Placer Claim, etc. There is also givcu the U. 5, Coal Land Law and Regulations thereunder. The work comprises thirty pages, aud will be sold, postfree, for 50 ceuts. It should bein the hauds of every oue having any mining intcrests. DEWEY & CO., Publishers of the Minixe Axn ScientiFic Pruss, 8. F OUR AGENTS. Our Frienps can do much in aid of our paper and the cause of practical knowledge and scicnce, by assisting Agents in their labors of canvassing, by leuding their iufluence and encouragiug favors. We intend to send aone but worthy men. J. L, Tuasrp—Sau Francisco. B. W. Croweut—Amador, Placer, Calaveras and Tuolumne counties. G. W. McGrew—United States. A. C. Knox—Plumas, Sierra, Lassen, Placer and Nevada counties. C. N. West—Santa Cruz, Monterey and Sau Benito counties, A, C, Cnamrion—Tulare, Fresno and Inyo counties, A. U. Srrona—Lake, Napa aud Solano counties. Ep, T. Phank—Dakota Territory (Black Hills.) Josura Dimaick.—Mendocino, Humboldt and Del Norte ouuties, and Oregon. W. D. Wnire—Sau Beruurdino and Los Angeles counties. J. W. A. Wricut—Sacramento and Placer counties. B. E. Liovp—Alaimeda and Contra Costa couuties. Every new subscriber who does not receive the paper and every old subscriber not credited on the label within two weeks after paying for this paper, should write personally to the publishers without delay, to secure proper credit. This is necessary to protect us against the acts and mistakes of others. Newepaper Fileholdere., Dewey’s new elastic fileholders (black: walnut), size of the Press, Harper's Weekly and Seientijie American, for 50 cents. Larger sizes to suit any newspaper, 75 cents. By mail, postpaid, 10 cents extra. Cash with all orders, Patent allowed. “ Address, Dewey & Co., Publishers, Sau Francisco, _Murderin the First Degree s generally brought to ligbt, but thousauds of quiet murders, of which the world never hears, are cc d by the ini ion of wrong medicines. The dyspeptic, the bilious, the fever ridden, the rbeumatic, are too often poisoned witb deadly, drugs, when the persistent use of Tarrant’e Effervescent Seltzer Aperient, With proper caution as to dict and reginien, would inevitably bave worked a speedy and thorough cure in kidney diseases, bowel complaints, fevers, nervous paroxysms, and all other ailments that reduce the strength and vital power of the system, sustain, refresh, purify, cleanse and regulate it with this iuvaluable saline remedy. Sold by all druggists. W. T. GARRATT’S BRASS and BELL FOUNDRY SAN FRANCISCO. MANUFACTURER AND IMPORTER OF hurch and Steamboat BELLS and GONGS, BRASS CASTINGS of all kinds, WATER GATES, GAS GATES, FIRE HYDRANTS, DOCK HYDRANTS, GARDEN HYDRANTS A General Assortment of Engineers’ Findings. Hooker’s Patent Celebrated STEAM PUMP farThe Best and Most Durable in use. Also, & variety of other PUMPS }) For Mining and Farming Purposes. BLOWERS, For Ventilating Mines and for Smelting Works. HYDRAULIC PIPES AND NOZZLES, For Mining Purposes, Improved Journal IMPORTER OF IRON PIPE AND MALLEABLE ALL KINDS oF WORK AND COMPOSITION NAILS, AT LOWEST RATES. Metal. IRON FITTINGS. Garratt’s San Francisco Pioneer Screen Works, J. W. QUICK, Manvuracrurer, Several first premiums received for Quartz Mill Screens, and Perforated Sheet Metals ‘of every ¢ n description. 1 would call special attention to my SLOT CUT and SLOT PUNCHED SCREENS, which are attracting much attention and giving nuiversal satisfaction. ‘This is the only estahlishment on the coast devoted exclusively to the manufacture of Screens. Millowners using Battery Screens extensively can contract for large supplles at favorable rates. Orders solicitedand promptly atteuded to. 32 Fremont Street, San Francisco WORKS for ENGINEERS and STUDENTS CIVIL ENGINEERING, By J. B. Wheeler. U. 8S. A. Containing 472 poges and nearly 300 cuts, Svo, giving manyjformula in constant use among Engineers. At once practical and theoretical, 43.50. Mahan’s Civil Engineering, revised by Prof. D. V. Wood, Svo, new plates and additional text, $5.00. &z Orders for Foreign Books, Etc., forwarded Seniweekly. JOHN, WILEY & SONS, 15 Astor Place, New York. Samurre Copies. —Occasionally we send extra copies of this paper to those we belicve would be benefited by subscribing for it themselves, or who are willing to haud the paper and speak ofits merits to others. We call the ateution of such to our prospectus and terms of subscripion. pew EET & CO'g Scientiric Press Office—202 Sansome St., N. E. Cor. Pine, S. F PATENTS obtained promptly; Caveats filed expeditiouslyPateut re-issues taken out; Assignments made and re eordcd in legal form; Copies of Patents and Assignments procured; Examinations of Patents made here and at Washington; Examinations made of Assignments recorded in Washington; Examinations ordered and reported by Telegraph; Rejected cases taken up and Pat ents obtained; Interfereuces Prosecuted; Opinions ren dercd regarding the validity of Patents anu Assign ments; Every legitimate branch of Patent Soliciting Business promptly and thoroughly couducted. 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