Volume 12 (1866) (428 pages)

416 She Mining and Scientific Dress, Index to Volume XII Tining & Scientific pens. Prom January oe to July 1, 1866, PAGE. 5 A Adams Oil Well 49 Antmonial Ore., » odd An Old Schoo! House Contzac » 415 An lce Cuvered Continent. . «ee 410 Age of Gold-Bearing Rocks. -2, 18, 82 Age and Formation of Motal-Bearlug ROCKS occ ceee,. Ser Ague, Origin ol the Alpine County, Min 6,22, 51, 38, 102, 118, 434, 198, Pah 230, "262, 276, 291, $10, 325, 382, 358, 374, 390, 406. Alr, Why we Cannot See Heated.. 355 ‘Amador County, Mlnivg ju, 22, 64, 70, 102, 116, ial, 184, 150, 166, 201, 246, 262, 276, 294, 310, 312, 342, 406. American Flag. Origin ee me 287 American Freedman's Commission, The 56 American [ron Ore in England. Amalgamator, Hunter’s New a cy 869 Antimony and its Ores . Anthracite Coal, Arrival from Columbia 152 Antiracite Coal; Have we in Californian. 179 408 A New Trap... Arizona, Enrly S-ttloment of Arizonn, The Mines of 86, 263,279, 205, 810, 327, 343, 375, Arlesian Wells in Visalia secceeen Artesian Well Boring Tools, Atmosphere, Wonders of the, Austin, Reese River, Prospec: ‘Auriferous Gravel Deposits. Aurora, Miniug m.. Austrolia, Gold Yield o B Banker Mine, Placer Connty ..+. 322 Batopilas, Mexico Report of tho Mining District Ole. +. 116, 182, 148, 164 Beantiful Things. 66 23. Beautifnl Extract. Belly, California Made Bell, The First Coliforni: Henicia, Letter from rees of Cal Bisulphide of Carbon. Black Rock Mines. Biasting Operalinus, Theory of. Black Sind—A Machine for Washing Blake’s Crusher .. Boiler, Hawell’s Steam. Huoks, The Value of, Boot Nailing Machine Borax in Lake County Boring Tools for Artesian Wells Botauist, State...ese.0 Bouquet, How to Breserve a Bouquet, An Aucient. Broad and Butter.. Brick Making, Improvements in. British Columbia, Mines of 279, 310, $27, $43 .375, ‘201. Brewer, Prof. Letter from Brown's Valloy, Mipiug lu. Bullion from Gold Hill.. Balleipe and Lean Socicty, i 232 Butte ae ae ‘in ae 150, 182, 278, 294, 326, $74, 390 Buttes, Sierra County Quartz Ledges. 370 Cahhage Stick. 3. Calilornia Mechanics, ‘A Compliment to. 392 California Academy of Natural Sciences, 805, 321, 359, 385. Caplilary Attraction vee cee -Capita!, Eastero, for the ‘Mines. Cipito Building, The Slate , Calaveras Couaty, Mining in ‘38, 54, 74, 86, 112, 146, 150, 162. 166, 178, 198; 210, 214, 290. 246, 250, 291, 310, 342, 356, 890, 40% 6 Caliente District_—Correction. California Match Factory. Camphor, Experiments with.. Caunel Coal ia tho United State of Colom262, 278, Ide sseeccsevsersesserscsscssoaes 407 Carringo Manufucture. 5 fol Car Truck, Gregg’s New. . 807 Cast Steel, Forging and Welding. 2 Cement Mill at Freuch Corral. . 49 Cement Miniug.. 257 Cement Mills in and arou + 281 Cement Mines on the Bluo Lend. Cument—“ Auriferons Gravel Doposits. Cemont Gravel Diggings. Coment Mill, Another. Cheerfulness in the Household. Chemieal Action of Steam on Metallic Sulphurets at a high stuto of Temperatnro.. Cherry Stoner, A. Children, Little. Children, Exoeriment: Children, Kindheartedness Ohildren—Why they Die. Ohivalry, Its it ae aiid Fall. 5 Chronometor Escapement, Improvement FEBS odo aes eee eee 403 Cigar Boat, Winaws, Nothing New. 55 Clear Lal.e, Curio: ‘ities of. Cplusa County, Mines of. Cotusa County, Mineral Curiosities of College, A Mining Agricultural, Golorada River Nuvigation of, Colorado, Ore Smelting in, Coloranlo, Central City., Culorade, Mining in 216, 262, 279, 295, 310, 327, 348, 359, 37: Color Blindness. ae Commencement Day in “Oakland Concentrntor, A Washoe Concentrator, Hunter's Concentrator, yee Concentrator, Hu Concentrator, He 6 Contra Cosia, Ming in.. “166, "231, 310 Cabinet, Contributions to Our 201, 226, $69, 877, 4u3. Correctinos ss. seus “cheng al Copper Ores, Price of. 21 Copper Ore, Shipments uf. ei Copper Smelting io Culifornls od Cupper Intercsts—The Smeltii 61 Copper Interest, The.. cc cc ee eeee t 104 @opper in Animal Tissue . . 38 Copper Mines, Union. pe Copper Discovery i in Nevada County 243, 207 Cow Milker, The American—illus, . 289 Corporation Bill, A New. sees Corporations, A New Bill Concerning. 120 Corporntiony, New—Election of Officers, 9, 73, 217, 296, 360. Crawlord’s Elevator—illns. 193 Crushing Muchine, A New. 307 Crusher, or Pulv erizer, Halls. 129 Crusher, Teer New. 289 Crusher, Gurdlaer’s .. 200 Curiosities of Clear Lako. seescoog Us Curious Experiment, Camphor on Water 233 Curious Experiment, Another Curious Oriental Customs. D Desulphurizing in Colorado. . Desulphurizing, New Mode of . Diamond Fever fo Boise and Uwyhee 6 Diamond Hunt in Owyhee , Discoveries of the last Fifty Don’t Drivo the Boys from Home . Door Sprng, Barker’s.. Drilling Machine, New . EE Earthquakes, Electricity the Cause of. Earthquakes, the Alta on..s. Rlectricity a Motive Power Electricity in a Cotton Mill. 7 Electricity the Cause of. " Rarthquakes. 129 Elecinic Current, Soureé of the, in tho Voltale Battery . 402 Electro-Maguetic Engin El Dorado County, ‘Mining in 211, 227, 2, 266, 282, 302, 506, 328, 338, 390. Elevator , Crawlord’s—illus,. Emery, A Substitute for. Emery, Is there. in Californta Emary and Emerylitc—Querie Esmeralda, Mining in 6. 22, 46, 70. 86, 184, 150, 166, 132, 214, 246, 262, 310, 391, 4 Eveniug Sa. Eyes, Causo of W Experiments, lmpor Excelsior Mines no Myth €xcelsior Miues.. Exhihilion, The Paris. Exp insion of Metals. Exports, California Merchandise. Ee Falling Of of the Oi] Yield... Familiar Lessons for Young Readers Fishermen’s Legend.. Fluid for l.cosening Boiler Scale Folsom Mining About.. Forge Company, The Pacific. Fossils in Oregon . FYowler’s New Crush Forging an Welding Cas Forndries, Our Franklin aod his 1 Fresno Counly, Mining in 150, 294, 328, From San Bernardino Couuty. +. 409 Fuel, A New Kind of..c0000 409 358, 374, 590. Furnace, Siemen’s Heating—illus.. 337 G@ Gardiner’s Crusher, with Editorial ReMAPKS,.-ceescce2 Gas in a Quartz Mine, 407 Gold Mines of Siberia. + 65 Gold Separator, A New. . 87 Gold Hill, Nev., Bullion fi + 400 Gold, Iron and Coal. 403 Grain Crop of 1668, The. . 401 Grass Valley, Minlug Siles in. 152 Grass Valley, Letter from our ‘Regular Oorrrspondent. 19,50, 67 Grass Valley, Quartz M 232 Gravel Diggings, Our.. 72 Gravel Deposits, Auriferous +298, 387 Gun Lock, [email protected] wee 301, Hall’s Dry Pulverizer—illus..-.. 129 Bansbrew’s Pumping Engine—illus. 146 Haywood’s—A Valuable Mine... $12 307 Heat Produced hy Agltalim of Water. High Schools of San Franclsco. : Hoisting Invention, New. HOMO cccsct a> Home Inéuences, Hotel Telegraphs. Honse Raising. Howell’s Steam B Humboldt County, Cal., Oil in. Humbolit County. Nev. Mining in 36, 70,184, 150, 106, 198, 246, eo" 310, 3i2, 358, 390, 406. r lam Going Home, Mother.. Ice, The Strength ‘ol, sponses idaho, Quartz Mining in 68, 268, 279, 295, 310, 326, 843, 359, $76, 391. 40 6. odustrial Exhibition peed tor the Fifth 4159 119 36, 61. Invention, Important Branch of CallforDiksseseeInventions, N Iron, Titanic . Iron ani Wood, ew Jron, The Consumption of. Tron Ship. The First.,. lron Ship Building in England, Iron, Pig, Total Prodnetion in U. Iron, A New Method of Rolling lron, The Hardeuing of, Inexhaustiblo lyory,. 7 J Juvenile SMOKES. ..eeeeeeeesc cece Kx Kaolin and ethor Fire Clays. Keepsakes. ssnscscceses Kern County, Mines of, Kerosene Oi! Explosions Klumath Couuty, Mining Kuittiog Machine, A New Kraken, Tho . 5 iL Tadies, Auction of . Lake County, Mines of. Land Slide, An Extensivo. 66 Latin Schwol et San Franei-co 393 Laws, New Mluinog, of Callfor da, etc.. 184, 185, 199, 215, 27+ Lend as-an Anialgamator . 201, 22 Lez, A New Artificial.. . 528 Life, A Beautiful Hlustratiou of 138 Lincoln Monumnent.. . 16 Lincoln Schon! Librar . 146 l.incolo School, A Day ut the. . 167 Linevln Statue, Loauguration of » 245 little Givat Qunrtz Mill, The. « 250 Lock, Bussey’s New Comhinatiou . 328 1,08 Angeles Couuty, Mining iu . 182 Lower Calilornia, the SMiues o: 2 3: Lower Cul2ornia, Placer Digging see. 152 BM Machine Shop, The San Jose Rallroad. 296 Magnesium for War Vesselz. Magle, Scerct of..c.scecesesesceres 297 Mammoth District, Nev., Letter from. Manulnetories, Gen, Jackson on. Manulacture of Tin Pla Marin County, Miuins 6, Mariposa County, Mining iv 8, 26, 150, 182, 198, 214.246, 262, 278, 291 ,306, ‘ 310, 342, 358, 408. Markleeville Correspondence » 61 Sarqnis’ Slop Hopper. Marysville, Curresponden Mechanics’ Institute, 3, 20, 36, 51, 136, 218, 406. Mechanics? Institute Election Mevel, Prizes. -.ceees £37 Medical Topography of Calitor + 685 Blemorial of the Miners of « 61 Meudocino County, Mining in » 6 Metallic Alloys, More ubout,. « 23 Metals, On the Preveution of their Oxidation. . lig Metals in Eruy . 248 Melal Market, New York 217, 876 Metal Bearing Rocks, Agesnd Formation 18 Mexico—Report on the ‘Mining District of Batopilas.... P Mills in the Reese River Mining Distr Milker, Colvin’s Cow Mineral, A New. Miuer’s Inch of Water Minera’ State Convention, Cull! , Sl. Miners? Convention—Election of Delegates from San Francisco., Miners’ Convention—Miners in Ex Movin . Miners’ Meeting at Grass Valley Mines ol’ Lower Califoriia. : 99 Mines, The Yield of. 19 Mines of Utah. a Mines After the Wai Mines—Influx of Water Mineral Lands in Congress. Mining Law of Nevuila, Concerning the Possession abd Locatiou of Mining Claims..0. 5568 Mining Laws Concerning . Partie Munine Bill to Prevent Adulte Duilckeiler.00) se ecsas Mining Bill, S nator Robinson's Mining Bill; Pattison’s, Mining Bill) Adtate. Mining Entyrpri.e, Ab Im Miuing in California..6, 22, 36, Mining und Agricultar College, A Mining College, The Proposed, Mining School, *Another.. Mining Stocks, Improvement in Mining Sales in.Grass Valiey, Mining Interests of 1865.. Mining Claims, Location und Posse: Mining Enterprises, ‘Canse of *Pailur Mining, California River—ill. Mining Operations near Mozatlin. Miuing Statistics.. Mining Machinery . Mouo County, Bima Spriag District. Montana, Rich’ Discovery in.. Montnna, Mining in 99, 215, 262, 279, 594, 310, 327, 343, 359, 375, 291, 407. Monterey Couuty, Mining } in. e.134, 326 358 Mooro’s Grinders, iepeunts 163 Monnt Dinhlo, A Trip to Mount. Diablo, Mining in MUSIC.ccceescosewoes IN Najling Machine, Barlow’s... Nevaua State, Mining in. Nevada County, Mining in Nevada Mining Bill, Nevada and Grass Nevada Connly, Mining in 19, 50. 66, 8, 70, ST , 118, 134. 150, 166, 182, 198, 214, 930, 233, 243, 216,262, 278, 204, 201, 310, 326, 342, 345,358, 374, 390, 392 6, 22, 38 "ee 406 6, 6 Nevnda, Correspondence from.,.19.50, St Nevada County, Mineral Product olbie. 845 New Grenada Mines 69 New Inventions., New Invention — Ste: Wheel New Book . o New Publications—Blako’s Mineral Catalogne,.-. 217 New Publications, 310, 345 New Crusher and Pulvizer, kowler’s. New 3 aoe Power for Sen. Gvuing VesBCIS cere: cena Now Mexico, Mines in New Mining Bill, Senator Conness Nitro. Glycerine, fits Character, et Nitro-Glyccrine, Explosion of. NitroGlycerine Fitoen Yenrs Ago Nitro-Glycerine Rondered Sife,. Normnl School, The Stato, Closi ng Exerelses of. sees North Star Miue, Grass Valley. seesene. oO Officers of Mining Companies, Flection ONC Waseem seat ian 211. 295, 360 Oil, Coal, Singular Effects of. 2. Ko gel Oil Wells. Torpedoes in.. 376 Qi] Well Boring in Sin Franci-co. Ojl Well Boring in Colusa County. Oil in Colorado.. Oil Wellsin Burmah Oil Well, The Adams’ Oil Items... Ojl—Depth of Well in ‘Hum oldt. Oil Works Near Santa Cruz. Only a Little Brook.. Opal Mines in Calaveras County Opbirville, Placer County Mines. Oregon, Mining in,.279, 2 nae 243, Origin of Tiustrions Men. Origin of the American Fl Owyhee, Mining in, Oxidation of Metals, To Prevent ne. Pacific IsInnds, Trade of. " Puddle Wheel. * Paddlo Wheel, Th: oy A Paper from Wood pulp, . 5 Patents, Aunual Report of Commissioner Oe -aes zs Patents, Ine Patents, New Pahranagat Valley. Peat or Turf, California. Petroleum. Petrolvum Matters. . Petrelenm — lutercsting Vin IMD. «sai: a's ae Petroleum as a1 An. Pepper und Caffee. Phaiiom Photographs Pharoah’s Serpepls. Photographic Art, Impiov cement iu the Picking up Thoughts. Placer County, Assay of Plager County, Silver Mining in 5 -Suiphurets—Cham Placer ‘Connty, Mining in 6, 70,150, 166, 165, 182, 198, #14, 280, 246, 282, 276, 289, 294, 310, 326, 342, 354, 355, 374, uB8, 390, 406, Plauen cence 387 Plow, Steam, Hilder’s Patent + 401 Plow, Steam, River’s Patent, » 401 Piow, John Mott’s Improved, S8 Plumas Couuty, Ming iu 6, 2: 54, 70, 102, 166, 214, 246, oe, ake ona? 310, 342, 3t4, 3u0, 406. PIU dug0. 00. -e vee 1 Poetry, Lhe First Ame 199 Poker, an Experiment ‘oh Ub 139 voutical Teruts, Uligin of. . 160 Powder Mill Machiner . 392 Properties of Bouies. . 1s3 Prison Commissiou. . 36> Process, A New. 808 Pulverizer, Hall’s Dry . 129 Pulverwer, A Now Earth « 102 Pulso, Wie, ccc .<0 239 Pump, The Steam Syphon. 71 Pumps, Brear’s improved. “Valvelesa LCN IN OFA Ie sees cere = clemine <5 « Pump, Hooker’s hxcelsior Patent—nius, 369 Puwping Engise, Hansbrow’s—illus. 146 Quartz Mining Bill—Pattison’s. 8 Quartz Mill, New. 40 Quartz Miuing iu Idaho, 88 Quartz Muills—Gardiner’s Crusher. 200 Querivs—kmery ang Emerylite. Quicksilver, An Act 19 Secure Miuers a Puro Article ot, Rapid Traveling. Razor Question, Lh Reese River AMiaing yer Curr reqaatilanen TOrTESS, Reese River, Mining In 22, 36, 64, 70, 86, dug, Reese River : Tue Millsand Mines o. Kecse River Ures.. Reese River, Mining as it Keese River, Miuing in, Reese River Ores, Yield Rivers of Vil. oes. se wese Rucky, The Age ol Gotd Keariug. -2, 18, Rocks, Ago and Formation of Metul. Beariug.. seteeee Rocks in tbe vlu Rotary Rock Boriug Drill, Rousing Processes. Koasing Furnaces, Corbet’ s Sage Brush for Fuel. Sante Clara County Mine: Sin Mateo County, Gold Sulerutus--W hat is lt.. sucramento County, Miniug iu.,.60, 168, 826, 406. Schools, The Opening of. echod) Marm--A Fighting Geience, A Triumph of.. Scientige Worl, A Loss to the, Soieutilic, Miracle, A. Sveret, A Valuable. Seading Pateuts Solections for a d per. Shnfts—How to Straighten. Them. Ship, A, oF the Second Century. 242 + 103 Shasta County, Miniug in 6, 22, 36, 56, 118, 150, iss, 210,230, 246, 262, 294, 310, 358. 374, 390, 406. Siheria, The Gold Mines Ol. Sierra Conoty, Mining In 6, , 64, 102, 198, 214, 230, 246, 282, a 6, ‘94, 310, 326, 542, 358, 370, 874, 387, 390, Silyer Miniug iu Placer County... 1 Silver Ores, New Prooess for Reduclug. Silver Ores—Vatera's Process. Silver Mountain Mine, A..ceeee Siskiyou County, Resources oF 163, 186, 874, 358, 406. Siskiyou County, Mining jo. 78, 294 Silveriog, Simple Proaess fo} Sluice Box, A New Patent Slop Hoppers, Murquis’. Smelting, Colorado Ore, Smelting Copper ju California, up Bubble, The Philosphy of.. Sodium Amnlgamntion, . . Sodinm Amiga = Esp imeuts with GOI Uress cess socecssceees Sodiuwn Process—\¥ ho is tho Inventor 2. Sodium Amalgamation, . sSodlum Amalgam, Wurtz’ Sodium in Excess on Rich Silver Sodium Amalgam—More About It. Sudlum, The Use ol, Sonoma County, Mining i: Sound, Transmission ol, Spider, A bingular. Steam Boiler, Howell’s—illus Steam Cyliuder, The Largest. : Steel Castings, Iinprov&ment in Making Steel, Forging and Welding Cast Stecl, Bessemer, Superior to Iron. Steel, Hardening aud Tempering cf. Steel, Bessemer.. cones 3 Stock Reports. .9, 25, ‘41. 57, 66, “84. 100, Stock sales, P. 4, 20, 36, 52, 68, 81, 100, Stocks lm proving. ouprnucy oConeae Substitute, A New, Trou aod Wood. Sulpliurets, GoldBearlng, and ther Re-, =e 89, 157, Steam at Sulpburets iu Gravel Diggings... a Nigh Temperature.. i} Sugar on the Paciéc Caast—illus.. ia Dy Tahornacle, Tho New Mormon..2 Tehle Mountain,.-.--.-Thallium, The New Netul T.cth, Hearing with the. Tehama County, Mining in. Telegraphs and the Cholera. Tellerinm, A Test for.. Thermnl Springs In Reese River Tin Ore on the lacific oy Torpedoes in Oil Wells. eae Transmutation of Metals . Transmission of Sonud. Travel Beneticial to Workmen. 3 fractory Curve, and Propertics of Grinding Plates 9S, 114, 120, 146, 162, 178, 194, 210, 258, o74. 290, 808, 320, 356. Trinity, Connty, Minlng to 54, 70, 118, 62, ‘310. 374, 390, 406. Tuolumne County. Mining in 6, 22, 36, 54,70, 102, 118, 182, 214, 262, "273, 978, 310, 3. 6, 374, 380, 406. Tulare Gonity, Mimng iu 118, 150, 216, 278, 204, 310, 426, 342, 353.370, u90, 2. Soietting Works—The Copper luterest.3 65 406 82 322 17 3890 330 406 Tunpeling Machiue, ‘An Enea. 855 Type Setting Machine, ao Eugiish.. U Union Iron Works, Sacrnmento, Uniou Iron Works, Booth & Co, trated..0.+ eeeesece eal ay Union Mine, The Great bult Against. 335 376 167 Paion Copper Mine, Rich Developments : 12 Utah, The Mines: of49 268, 2i9, "359, 301, ne “Usm ! vy Virginie City and Vicinity, Mining, ete. 22, 64, 70, 102, 118, 134, 166, 182, 198 , 214, 280, is, 262, 273, 2u8) 310, 366, 842, 353, 378, 391, 406. Visalia, ‘Ariesim Wells in. Volenno Fae ceunr Correep from. . eee Voltaic P, toward” for. lustending its oporation. ., (0 DUQUE BSD O86 aco 500 Ww Water, Apparatus for peeing purer ha Water in Mines, Influx ol. oe Waterfalls, Ancieut. Water Wheel, Bangepial Turbine Water Query 2 Whistle, Wher s Makes the Sound of—Se entitic Recreations:.. nner eco neneee Winaa’s Cigar Boat Nothing New. oe 64 Wood Splittiug Machine.. met, Lou } Wood, How to render it Unsusceptible to Expansion and Contraction « 31 Why Children Die. . 166 ay Yield of Reese River Ores. 72 You Bet, Cament Miney of. 261 Ynba County, Mining in 182, 278, 294, 310, 358, 375, 390, 406 New Mining Laws of California and Neva We have just issucd, in eheap edition, the r laws relating to mining and corporations in € fornia, and Nevada, passed in 1865-6. Some these laws are of the highest importance to par interested in the matter of locating and hold » elaims, and prospecting mines, in these Sta Copies sent by mail. Price, 25 eents. Address, Dewey & Co., Patent Agente San Franeiseo, May 1st, 1866. TJudicious Resolutions, Several of our most substantial and jr li ciously managed mining corporations ha. passed resolutions, since the approval of t)* new assessment law, requiring all notice of assessments and sales tobe published in t 6 Minine Anu Sciextiric Press, the cnly tl»ough (daily or weekly) mining journal on {+3 coast. Onur efforts to concentrate all mins. advertisements in one paper, for the economic:convenience of shareholders and assessm . payers, are meeting with decided sucers Tbose who believe in supporting the mini: cause, should bear our paper in mind, ald bring up this subject at the next trustee orsharebolders’ meeting. San Francisco, April 7th, 1866. PATENT BUSINESS. Wo havo lately associated with us in the Patent ands «+ chanical Department of the Mining axp Screnvivic Prt gentleman of superlor ability and altainments, who arrived dircet from the leading patent agency in New ’** City, and having a faithful aud roliahie associate In Wr* Ington Clty, wo are now hotter than eyer hefore prep ~ to secure tho clnims of our opplicants, in a careful, pr and efficient manner. DEWEY & CO., San Franelsco, June, 1866. Patent Solicito. ENGRAVING AND ELECTROTYPI THE PROPRIETORS OF THE: IG ann SoEennric Press, ha now In their office onc of tho» dranghtsmen in the United States, are prepared to far Wood Engravings, for illustrating olt kiuds of mnchir puildings, mines, trade-marks, cte ,in a superior ani tistic manner. We shall givo our customors in lhis satisfactory work, and reasonable prices. Orders for s" otyping and elecirotyping promptly élled. DEWEY & CO., Publishers and Patent Agen" 26712 FIRST PREMIUMS : FOR PRINTIN*"S AWARDED AT THE MECHANICS INDUSTRIAL EX ITIEITE SS FRANCISCO, 1865, » —AND AT TOE— State Fair at Sacramento, 1862, =—TO= DEWEY & CO. AND JOB PRINTER PUBLISHERS OF THE BOOK MINING AND SCEENTIFIC PRESS, 605 Clay street, San Fronciseo. BACK VOLUMES. Back files of Ihe Mininc axp Sctentiric Press, from J ae Ist. 186, to the present time, will he furnished at per volumo of ae months; bound in cloth, $5 4 THE thickness of the film of asoap bobt v has been ascertained to vary from 1-19,000 to 1,35,000tb of an incb. r q

416 She Mining and Scientific Dress, Index to Volume XII Tining & Scientific pens. Prom January oe to July 1, 1866, PAGE. 5 A Adams Oil Well 49 Antmonial Ore., » odd An Old Schoo! House Contzac » 415 An lce Cuvered Continent.. . «ee 410 Age of Gold-Bearing Rocks. -2, 18, 82 Age and Formation of Motal-Bearlug ROCKS occ ceee,. Ser Ague, Origin ol the Alpine County, Min 6,22, 51, 38, 102, 118, 434, 198, Pah 230, "262, 276, 291, $10, 325, 382, 358, 374, 390, 406. Alr, Why we Cannot See Heated.... 355 ‘Amador County, Mlnivg ju, 22, 64, 70, 102, 116, ial, 184, 150, 166, 201, 246, 262, 276, 294, 310, 312, 342, 406. American Flag. Origin ee me 287 American Freedman's Commission, The 56 American [ron Ore in England. Amalgamator, Hunter’s New a cy 869 Antimony and its Ores . Anthracite Coal, Arrival from Columbia 152 Antiracite Coal; Have we in Californian. 179 408 A New Trap..... Arizona, Enrly S-ttloment of Arizonn, The Mines of 86, 263,279, 205, 810, 327, 343, 375, Arlesian Wells in Visalia secceeen Artesian Well Boring Tools, Atmosphere, Wonders of the, Austin, Reese River, Prospec: ‘Auriferous Gravel Deposits.. Aurora, Miniug m... Austrolia, Gold Yield o B Banker Mine, Placer Connty ...+.. 322 Batopilas, Mexico Report of tho Mining District Ole. +. 116, 182, 148, 164 Beantiful Things. 66 23. Beautifnl Extract.. Belly, California Made Bell, The First Coliforni: Henicia, Letter from rees of Cal Bisulphide of Carbon.. Black Rock Mines.. Biasting Operalinus, Theory of.. Black Sind—A Machine for Washing Blake’s Crusher .... Boiler, Hawell’s Steam. Huoks, The Value of, Boot Nailing Machine Borax in Lake County Boring Tools for Artesian Wells Botauist, State.....ese.0 Bouquet, How to Breserve a Bouquet, An Aucient.. Broad and Butter... Brick Making, Improvements in.. British Columbia, Mines of 279, 310, $27, $43 .375, ‘201. Brewer, Prof. Letter from Brown's Valloy, Mipiug lu. Bullion from Gold Hill... Balleipe and Lean Socicty, i 232 Butte ae ae ‘in ae 150, 182, 278, 294, 326, $74, 390 Buttes, Sierra County Quartz Ledges.. 370 Cahhage Stick.. 3. Calilornia Mechanics, ‘A Compliment to. 392 California Academy of Natural Sciences, 805, 321, 359, 385. Caplilary Attraction vee cee -Capita!, Eastero, for the ‘Mines. Cipito Building, The Slate , Calaveras Couaty, Mining in ‘38, 54, 74, 86, 112, 146, 150, 162. 166, 178, 198; 210, 214, 290. 246, 250, 291, 310, 342, 356, 890, 40% 6 Caliente District_—Correction. California Match Factory.. Camphor, Experiments with.... Caunel Coal ia tho United State of Colom262, 278, Ide sseeccsevsersesserscsscssoaes 407 Carringo Manufucture. 5 fol Car Truck, Gregg’s New. . 807 Cast Steel, Forging and Welding. 2 Cement Mill at Freuch Corral.. . 49 Cement Miniug.... 257 Cement Mills in and arou + 281 Cement Mines on the Bluo Lend.. Cument—“ Auriferons Gravel Doposits. Cemont Gravel Diggings. Coment Mill, Another.. Cheerfulness in the Household.. Chemieal Action of Steam on Metallic Sulphurets at a high stuto of Temperatnro... Cherry Stoner, A. Children, Little.. Children, Exoeriment: Children, Kindheartedness Ohildren—Why they Die. Ohivalry, Its it ae aiid Fall. 5 Chronometor Escapement, Improvement FEBS odo aes eee eee 403 Cigar Boat, Winaws, Nothing New. 55 Clear Lal.e, Curio: ‘ities of. Cplusa County, Mines of.. Cotusa County, Mineral Curiosities of College, A Mining Agricultural, Golorada River Nuvigation of, Colorado, Ore Smelting in, Coloranlo, Central City.., Culorade, Mining in 216, 262, 279, 295, 310, 327, 348, 359, 37: Color Blindness.. ae Commencement Day in “Oakland Concentrntor, A Washoe Concentrator, Hunter's Concentrator, yee Concentrator, Hu Concentrator, He 6 Contra Cosia, Ming in... “166, "231, 310 Cabinet, Contributions to Our 201, 226, $69, 877, 4u3. Correctinos ss. seus “cheng al Copper Ores, Price of. 21 Copper Ore, Shipments uf. ei Copper Smelting io Culifornls od Cupper Intercsts—The Smeltii 61 Copper Interest, The.... cc cc ee eeee t 104 @opper in Animal Tissue . . 38 Copper Mines, Union.. pe Copper Discovery i in Nevada County 243, 207 Cow Milker, The American—illus, . 289 Corporation Bill, A New.. sees Corporations, A New Bill Concerning.. 120 Corporntiony, New—Election of Officers, 9, 73, 217, 296, 360. Crawlord’s Elevator—illns. 193 Crushing Muchine, A New. 307 Crusher, or Pulv erizer, Halls. 129 Crusher, Teer New. 289 Crusher, Gurdlaer’s ... 200 Curiosities of Clear Lako.. seescoog Us Curious Experiment, Camphor on Water 233 Curious Experiment, Another Curious Oriental Customs.. D Desulphurizing in Colorado. .. Desulphurizing, New Mode of . Diamond Fever fo Boise and Uwyhee 6 Diamond Hunt in Owyhee , Discoveries of the last Fifty Don’t Drivo the Boys from Home . Door Sprng, Barker’s... Drilling Machine, New . EE Earthquakes, Electricity the Cause of.. Earthquakes, the Alta on...s. Rlectricity a Motive Power Electricity in a Cotton Mill. 7 Electricity the Cause of. " Rarthquakes. 129 Elecinic Current, Soureé of the, in tho Voltale Battery . 402 Electro-Maguetic Engin El Dorado County, ‘Mining in 211, 227, 2, 266, 282, 302, 506, 328, 338, 390. Elevator , Crawlord’s—illus,.. Emery, A Substitute for.. Emery, Is there. in Californta Emary and Emerylitc—Querie Esmeralda, Mining in 6. 22, 46, 70. 86, 184, 150, 166, 132, 214, 246, 262, 310, 391, 4 Eveniug Sa. Eyes, Causo of W Experiments, lmpor Excelsior Mines no Myth €xcelsior Miues... Exhihilion, The Paris. Exp insion of Metals.. Exports, California Merchandise. Ee Falling Of of the Oi] Yield..... Familiar Lessons for Young Readers Fishermen’s Legend.... Fluid for l.cosening Boiler Scale Folsom Mining About.... Forge Company, The Pacific. Fossils in Oregon . FYowler’s New Crush Forging an Welding Cas Forndries, Our Franklin aod his 1 Fresno Counly, Mining in 150, 294, 328, From San Bernardino Couuty. +. 409 Fuel, A New Kind of....c0000 409 358, 374, 590. Furnace, Siemen’s Heating—illus... 337 G@ Gardiner’s Crusher, with Editorial ReMAPKS,.-ceescce2 Gas in a Quartz Mine, 407 Gold Mines of Siberia. + 65 Gold Separator, A New. . 87 Gold Hill, Nev., Bullion fi + 400 Gold, Iron and Coal. 403 Grain Crop of 1668, The. . 401 Grass Valley, Minlug Siles in. 152 Grass Valley, Letter from our ‘Regular Oorrrspondent.. 19,50, 67 Grass Valley, Quartz M 232 Gravel Diggings, Our... 72 Gravel Deposits, Auriferous +298, 387 Gun Lock, [email protected] wee 301, Hall’s Dry Pulverizer—illus...-... 129 Bansbrew’s Pumping Engine—illus.. 146 Haywood’s—A Valuable Mine..... $12 307 Heat Produced hy Agltalim of Water.. High Schools of San Franclsco.. : Hoisting Invention, New. HOMO cccsct a> Home Inéuences, Hotel Telegraphs. Honse Raising.. Howell’s Steam B Humboldt County, Cal., Oil in. Humbolit County. Nev. Mining in 36, 70,184, 150, 106, 198, 246, eo" 310, 3i2, 358, 390, 406. r lam Going Home, Mother.... Ice, The Strength ‘ol, sponses idaho, Quartz Mining in 68, 268, 279, 295, 310, 326, 843, 359, $76, 391. 40 6. odustrial Exhibition peed tor the Fifth 4159 119 36, 61. Invention, Important Branch of CallforDiksseseeInventions, N Iron, Titanic .. Iron ani Wood, ew Jron, The Consumption of. Tron Ship. The First.,. lron Ship Building in England, Iron, Pig, Total Prodnetion in U. Iron, A New Method of Rolling lron, The Hardeuing of, Inexhaustiblo lyory,. 7 J Juvenile SMOKES. ...eeeeeeeesc cece Kx Kaolin and ethor Fire Clays.. Keepsakes.. ssnscscceses Kern County, Mines of, Kerosene Oi! Explosions Klumath Couuty, Mining Kuittiog Machine, A New Kraken, Tho . 5 iL Tadies, Auction of .. Lake County, Mines of. Land Slide, An Extensivo. 66 Latin Schwol et San Franei-co 393 Laws, New Mluinog, of Callfor da, etc... 184, 185, 199, 215, 27+ Lend as-an Anialgamator . 201, 22 Lez, A New Artificial... . 528 Life, A Beautiful Hlustratiou of 138 Lincoln Monumnent.... . 16 Lincoln Schon! Librar . 146 l.incolo School, A Day ut the. . 167 Linevln Statue, Loauguration of » 245 little Givat Qunrtz Mill, The.. « 250 Lock, Bussey’s New Comhinatiou . 328 1,08 Angeles Couuty, Mining iu . 182 Lower Calilornia, the SMiues o: 2 3: Lower Cul2ornia, Placer Digging see. 152 BM Machine Shop, The San Jose Rallroad. 296 Magnesium for War Vesselz.. Magle, Scerct of...c.scecesesesceres 297 Mammoth District, Nev., Letter from. Manulnetories, Gen, Jackson on.. Manulacture of Tin Pla Marin County, Miuins 6, Mariposa County, Mining iv 8, 26, 150, 182, 198, 214.246, 262, 278, 291 ,306, ‘ 310, 342, 358, 408. Markleeville Correspondence » 61 Sarqnis’ Slop Hopper.. Marysville, Curresponden Mechanics’ Institute, 3, 20, 36, 51, 136, 218, 406. Mechanics? Institute Election Mevel, Prizes.. -.ceees £37 Medical Topography of Calitor + 685 Blemorial of the Miners of « 61 Meudocino County, Mining in » 6 Metallic Alloys, More ubout,. « 23 Metals, On the Preveution of their Oxidation.. . lig Metals in Eruy . 248 Melal Market, New York 217, 876 Metal Bearing Rocks, Agesnd Formation 18 Mexico—Report on the ‘Mining District of Batopilas....... P Mills in the Reese River Mining Distr Milker, Colvin’s Cow Mineral, A New.. Miuer’s Inch of Water Minera’ State Convention, Cull! , Sl. Miners? Convention—Election of Delegates from San Francisco., Miners’ Convention—Miners in Ex Movin . Miners’ Meeting at Grass Valley Mines ol’ Lower Califoriia.. : 99 Mines, The Yield of. 19 Mines of Utah. a Mines After the Wai Mines—Influx of Water Mineral Lands in Congress.. Mining Law of Nevuila, Concerning the Possession abd Locatiou of Mining Claims...0. 5568 Mining Laws Concerning . Partie Munine Bill to Prevent Adulte Duilckeiler..00) se ecsas Mining Bill, S nator Robinson's Mining Bill; Pattison’s, Mining Bill) Adtate.. Mining Entyrpri.e, Ab Im Miuing in California....6, 22, 36, Mining und Agricultar College, A Mining College, The Proposed, Mining School, *Another... Mining Stocks, Improvement in Mining Sales in.Grass Valiey, Mining Interests of 1865... Mining Claims, Location und Posse: Mining Enterprises, ‘Canse of *Pailur Mining, California River—ill. Mining Operations near Mozatlin. Miuing Statistics...

Mining Machinery . Mouo County, Bima Spriag District. Montana, Rich’ Discovery in.... Montnna, Mining in 99, 215, 262, 279, 594, 310, 327, 343, 359, 375, 291, 407. Monterey Couuty, Mining } in. e.134, 326 358 Mooro’s Grinders, iepeunts 163 Monnt Dinhlo, A Trip to Mount. Diablo, Mining in MUSIC..ccceescosewoes IN Najling Machine, Barlow’s..... Nevaua State, Mining in. Nevada County, Mining in Nevada Mining Bill, Nevada and Grass Nevada Connly, Mining in 19, 50. 66, 8, 70, ST , 118, 134. 150, 166, 182, 198, 214, 930, 233, 243, 216,262, 278, 204, 201, 310, 326, 342, 345,358, 374, 390, 392 6, 22, 38 "ee 406 6, 6 Nevnda, Correspondence from.,.19.50, St Nevada County, Mineral Product olbie. 845 New Grenada Mines 69 New Inventions., New Invention — Ste: Wheel New Book . o New Publications—Blako’s Mineral Catalogne,..-. 217 New Publications, 310, 345 New Crusher and Pulvizer, kowler’s. New 3 aoe Power for Sen. Gvuing VesBCIS cere: cena Now Mexico, Mines in New Mining Bill, Senator Conness Nitro. Glycerine, fits Character, et Nitro-Glyccrine, Explosion of. NitroGlycerine Fitoen Yenrs Ago Nitro-Glycerine Rondered Sife,. Normnl School, The Stato, Closi ng Exerelses of.. sees North Star Miue, Grass Valley. seesene. oO Officers of Mining Companies, Flection ONC Waseem seat ian 211. 295, 360 Oil, Coal, Singular Effects of. 2.. Ko gel Oil Wells. Torpedoes in... 376 Qi] Well Boring in Sin Franci-co. Ojl Well Boring in Colusa County. Oil in Colorado.... Oil Wellsin Burmah Oil Well, The Adams’ Oil Items..... Ojl—Depth of Well in ‘Hum oldt. Oil Works Near Santa Cruz. Only a Little Brook.... Opal Mines in Calaveras County Opbirville, Placer County Mines. Oregon, Mining in,..279, 2 nae 243, Origin of Tiustrions Men. Origin of the American Fl Owyhee, Mining in, Oxidation of Metals, To Prevent ne. Pacific IsInnds, Trade of. " Puddle Wheel.. * Paddlo Wheel, Th: oy A Paper from Wood pulp, . 5 Patents, Aunual Report of Commissioner Oe -aes zs Patents, Ine Patents, New Pahranagat Valley.. Peat or Turf, California. Petroleum. Petrolvum Matters. .. Petrelenm — lutercsting Vin IMD. «sai: a's ae Petroleum as a1 An. Pepper und Caffee. Phaiiom Photographs Pharoah’s Serpepls. Photographic Art, Impiov cement iu the Picking up Thoughts.. Placer County, Assay of Plager County, Silver Mining in 5 -Suiphurets—Cham Placer ‘Connty, Mining in 6, 70,150, 166, 165, 182, 198, #14, 280, 246, 282, 276, 289, 294, 310, 326, 342, 354, 355, 374, uB8, 390, 406, Plauen cence 387 Plow, Steam, Hilder’s Patent + 401 Plow, Steam, River’s Patent, » 401 Piow, John Mott’s Improved, S8 Plumas Couuty, Ming iu 6, 2: 54, 70, 102, 166, 214, 246, oe, ake ona? 310, 342, 3t4, 3u0, 406. PIU dug0. 00. -e vee 1 Poetry, Lhe First Ame 199 Poker, an Experiment ‘oh Ub 139 voutical Teruts, Uligin of. . 160 Powder Mill Machiner . 392 Properties of Bouies. . 1s3 Prison Commissiou. . 36> Process, A New. 808 Pulverizer, Hall’s Dry . 129 Pulverwer, A Now Earth « 102 Pulso, Wie, ccc .<0 239 Pump, The Steam Syphon. 71 Pumps, Brear’s improved. “Valvelesa LCN IN OFA Ie sees cere = clemine <5 « Pump, Hooker’s hxcelsior Patent—nius, 369 Puwping Engise, Hansbrow’s—illus.. 146 Quartz Mining Bill—Pattison’s.. 8 Quartz Mill, New.. 40 Quartz Miuing iu Idaho, 88 Quartz Muills—Gardiner’s Crusher. 200 Querivs—kmery ang Emerylite. Quicksilver, An Act 19 Secure Miuers a Puro Article ot, Rapid Traveling.. Razor Question, Lh Reese River AMiaing yer Curr reqaatilanen TOrTESS, Reese River, Mining In 22, 36, 64, 70, 86, dug, Reese River : Tue Millsand Mines o. Kecse River Ures... Reese River, Mining as it Keese River, Miuing in, Reese River Ores, Yield Rivers of Vil. oes.. se wese Rucky, The Age ol Gotd Keariug. -2, 18, Rocks, Ago and Formation of Metul. Beariug... seteeee Rocks in tbe vlu Rotary Rock Boriug Drill, Rousing Processes. Koasing Furnaces, Corbet’ s Sage Brush for Fuel.. Sante Clara County Mine: Sin Mateo County, Gold Sulerutus--W hat is lt... sucramento County, Miniug iu.,.60, 168, 826, 406. Schools, The Opening of.. echod) Marm--A Fighting Geience, A Triumph of... Scientige Worl, A Loss to the, Soieutilic, Miracle, A. Sveret, A Valuable. Seading Pateuts Solections for a d per. Shnfts—How to Straighten. Them. Ship, A, oF the Second Century.. 242 + 103 Shasta County, Miniug in 6, 22, 36, 56, 118, 150, iss, 210,230, 246, 262, 294, 310, 358. 374, 390, 406. Siheria, The Gold Mines Ol. Sierra Conoty, Mining In 6, , 64, 102, 198, 214, 230, 246, 282, a 6, ‘94, 310, 326, 542, 358, 370, 874, 387, 390, Silyer Miniug iu Placer County..... 1 Silver Ores, New Prooess for Reduclug. Silver Ores—Vatera's Process.. Silver Mountain Mine, A...ceeee Siskiyou County, Resources oF 163, 186, 874, 358, 406. Siskiyou County, Mining jo. 78, 294 Silveriog, Simple Proaess fo} Sluice Box, A New Patent Slop Hoppers, Murquis’. Smelting, Colorado Ore, Smelting Copper ju California, up Bubble, The Philosphy of... Sodium Amnlgamntion, .. . Sodinm Amiga = Esp imeuts with GOI Uress cess socecssceees Sodiuwn Process—\¥ ho is tho Inventor 2. Sodium Amalgamation, . sSodlum Amalgam, Wurtz’ Sodium in Excess on Rich Silver Sodium Amalgam—More About It. Sudlum, The Use ol, Sonoma County, Mining i: Sound, Transmission ol, Spider, A bingular.. Steam Boiler, Howell’s—illus Steam Cyliuder, The Largest. : Steel Castings, Iinprov&ment in Making Steel, Forging and Welding Cast Stecl, Bessemer, Superior to Iron. Steel, Hardening aud Tempering cf. Steel, Bessemer.... cones 3 Stock Reports. .9, 25, ‘41. 57, 66, “84. 100, Stock sales, P. 4, 20, 36, 52, 68, 81, 100, Stocks lm proving. ouprnucy oConeae Substitute, A New, Trou aod Wood. Sulpliurets, GoldBearlng, and ther Re-, =e 89, 157, Steam at Sulpburets iu Gravel Diggings..... a Nigh Temperature... i} Sugar on the Paciéc Caast—illus.... ia Dy Tahornacle, Tho New Mormon....2 Tehle Mountain,.-.--.-Thallium, The New Netul T.cth, Hearing with the. Tehama County, Mining in. Telegraphs and the Cholera. Tellerinm, A Test for... Thermnl Springs In Reese River Tin Ore on the lacific oy Torpedoes in Oil Wells. eae Transmutation of Metals . Transmission of Sonud.. Travel Beneticial to Workmen. 3 fractory Curve, and Propertics of Grinding Plates 9S, 114, 120, 146, 162, 178, 194, 210, 258, o74. 290, 808, 320, 356. Trinity, Connty, Minlng to 54, 70, 118, 62, ‘310. 374, 390, 406. Tuolumne County. Mining in 6, 22, 36, 54,70, 102, 118, 182, 214, 262, "273, 978, 310, 3. 6, 374, 380, 406. Tulare Gonity, Mimng iu 118, 150, 216, 278, 204, 310, 426, 342, 353.370, u90, 2. Soietting Works—The Copper luterest.3 65 406 82 322 17 3890 330 406 Tunpeling Machiue, ‘An Enea.. 855 Type Setting Machine, ao Eugiish... U Union Iron Works, Sacrnmento, Uniou Iron Works, Booth & Co, trated...0.+ eeeesece eal ay Union Mine, The Great bult Against.. 335 376 167 Paion Copper Mine, Rich Developments : 12 Utah, The Mines: of49 268, 2i9, "359, 301, ne “Usm ! vy Virginie City and Vicinity, Mining, ete. 22, 64, 70, 102, 118, 134, 166, 182, 198 , 214, 280, is, 262, 273, 2u8) 310, 366, 842, 353, 378, 391, 406. Visalia, ‘Ariesim Wells in. Volenno Fae ceunr Correep from. . eee Voltaic P, toward” for. lustending its oporation. ., (0 DUQUE BSD O86 aco 500 Ww Water, Apparatus for peeing purer ha Water in Mines, Influx ol. oe Waterfalls, Ancieut.. Water Wheel, Bangepial Turbine Water Query 2 Whistle, Wher s Makes the Sound of—Se entitic Recreations:.... nner eco neneee Winaa’s Cigar Boat Nothing New. oe 64 Wood Splittiug Machine... met, Lou } Wood, How to render it Unsusceptible to Expansion and Contraction « 31 Why Children Die.. . 166 ay Yield of Reese River Ores. 72 You Bet, Cament Miney of. 261 Ynba County, Mining in 182, 278, 294, 310, 358, 375, 390, 406 New Mining Laws of California and Neva We have just issucd, in eheap edition, the r laws relating to mining and corporations in € fornia, and Nevada, passed in 1865-6. Some these laws are of the highest importance to par interested in the matter of locating and hold » elaims, and prospecting mines, in these Sta Copies sent by mail. Price, 25 eents. Address, Dewey & Co., Patent Agente San Franeiseo, May 1st, 1866. TJudicious Resolutions, Several of our most substantial and jr li ciously managed mining corporations ha. passed resolutions, since the approval of t)* new assessment law, requiring all notice of assessments and sales tobe published in t 6 Minine Anu Sciextiric Press, the cnly tl»ough (daily or weekly) mining journal on {+3 coast. Onur efforts to concentrate all mins. advertisements in one paper, for the economic:convenience of shareholders and assessm . payers, are meeting with decided sucers Tbose who believe in supporting the mini: cause, should bear our paper in mind, ald bring up this subject at the next trustee orsharebolders’ meeting. San Francisco, April 7th, 1866. PATENT BUSINESS. Wo havo lately associated with us in the Patent ands «+ chanical Department of the Mining axp Screnvivic Prt gentleman of superlor ability and altainments, who arrived dircet from the leading patent agency in New ’** City, and having a faithful aud roliahie associate In Wr* Ington Clty, wo are now hotter than eyer hefore prep ~ to secure tho clnims of our opplicants, in a careful, pr and efficient manner. DEWEY & CO., San Franelsco, June, 1866. Patent Solicito. ENGRAVING AND ELECTROTYPI THE PROPRIETORS OF THE: IG ann SoEennric Press, ha now In their office onc of tho» dranghtsmen in the United States, are prepared to far Wood Engravings, for illustrating olt kiuds of mnchir puildings, mines, trade-marks, cte ,in a superior ani tistic manner. We shall givo our customors in lhis satisfactory work, and reasonable prices. Orders for s" otyping and elecirotyping promptly élled. DEWEY & CO., Publishers and Patent Agen" 26712 FIRST PREMIUMS : FOR PRINTIN*"S AWARDED AT THE MECHANICS INDUSTRIAL EX ITIEITE SS FRANCISCO, 1865, » —AND AT TOE— State Fair at Sacramento, 1862, =—TO= DEWEY & CO. AND JOB PRINTER PUBLISHERS OF THE BOOK MINING AND SCEENTIFIC PRESS, 605 Clay street, San Fronciseo. BACK VOLUMES. Back files of Ihe Mininc axp Sctentiric Press, from J ae Ist. 186, to the present time, will he furnished at per volumo of ae months; bound in cloth, $5 4 THE thickness of the film of asoap bobt v has been ascertained to vary from 1-19,000 to 1,35,000tb of an incb. r q