Volume 29 (1874) (428 pages)

MINING AND SCIENTIFIC PRESS. [July , 25». 1874, 3, SENIOR Enrror. DEWEY «,.CO., Publishers. A. Te DEWEY, 51, {al h : GEO. H. BTRONO. W. BeEWER, yf) 0 jer ifn , JNO, L. BOONE, Office, No. 224 Sansome St., sim. ‘Cornér of California St.,;SanFrancieco.; «1 1 Supsorreriona payable inadvance=¥For one year, $4;'. eix months, $2.25; three: months, $1,25. Remittances hy registered letters orP.0. orders at ourrisk. , AnVERTISING RATHO,—I week, Lmonth, Smonths. (1 year. Per line. .j esses 25 . 80°” $2.00 $9.0 One-half in 00" ($3.00. ? $7.50! . 24.00 Cne inch. 2.00: 5.00.° 14.00). ‘40.00 Large advertisements at favorahle rates. Special or, reading noticés, legal advertisements, notices appearing in extraordinary type.or in particular parts of the paper, be Hi ingorted at special rates. oe TnOL aL PA ATT ay wa igo Ban Francisco: Saturday Morning, July 25, 187 4: ' TABLE (OF CONTENTS. ° CoE Garey ist Putten pene ats ft me BNERAL! EDITORIALS: — Patent ‘Buffalo” os ortge 5 Burleigh; Drills; Usee!and Benefits of Industrial Fairs;,,Jteady;Relief Mine, 49. Beach Mining on our Gold Coast. Why We Shonld Exhibit; Shoes and Dies trdm the California Magnetites; Exhihit of Machinery at'the Fair,/56.” The Shaker Sash Balance;! rons SaadisA y of 8 Com. encement at Cakland,5'7., Invention and Progress; atents and Inventions, 60. 0. ¥ ILLUSTRA TIONS.—Patent “Biffalo” Carriage for Burleigh Drilie;49,. ‘The Shaker Sash Balauce, 6'7. SCIENTIFIC PROGRESS.—Yelocity of Nervons Impulaes; Photography, at the Bott of the ‘Sea; . Men of Stience; ‘Temperature of the Earth; Detection of Phoaphorus; Evolution of Gases frem Molten CastTron, Baath 5 ese ti se ude Tne pr} 4 MEOHANICAL ,PROGRESS.'— Watches: New Mechanical Cniter.out: Paper from Jute; Testing, Armor Plates; A’Gompotind Locomotive; Liqnefying’ Gases; Hollow Bee Furnaces; Improved’ FishGrappling Spear,51.-— —--—— —~— Bue ING. stock MARKET.—Tahle. of Daily Saleaand Pricés and Comparative Prichs for, the Week; Notices” of ‘Assessments, Meetings and’ Dividende;’ Review lof Stock Market for the, Week, 52. i>. . + MINING SUMMARY sre. various countles in California and Neyada, 52-3. GOOD HEALTH.—The Human Frame—No. 7; Poisoning'by Carbolio Acid; Cheese ia&) Food;' ‘Training EEUL: <7-Spontaneons Comhustion; On of Timber; Starch; Zinclng Tron: Waterproofing Leather; ToPolish Brass; Wax for Ploors;‘Colcring Veneers, 65.: +> . tf a MISCELLANEOUS. The Globe Consolidated Mine; Pioche Mines;. New Mexican Mines; Enreka Mines; : California’ ‘Microscopical ‘Society: Sierra Connty Minee?)Ruhy ‘Hill! Water Works, 60." Resources of (Nevada;, Straw-Burning Engines; Tyho District:. How Ahout Silk Gultnre?, Plucky hut Pru. dent; The Rattleanaké Quicksilver Mine, Wild Coffce; Smélting Operations; Mine Dralning Apparatue: Cortez and Bnilion Districts: Gold’ in. Chunks; A, Ble Cistern; A Venturesome Trip, 54. Montana Silver Mines; Original.Gold Hill Quartz Mining Company; Machinists in the Navy; The ‘Oil Regiona of Los Angeles; “The Pine’ Belt: sganut ae Mines; Great Gravel Mining Field; Coal!Mining in China; Panamint, 58.Srrogusy. Munes,—The eteamer , California arrived at Portland from Sitka-on Sunday evenings. She “brought ‘eighty miners from Wrangel, and two hundred more were expected there daily, on. their way home. They bring discouraging news., The rush has been too great, for {he small number of; paying claims diecovered. . Ay, Correspondent writing from there fo the; Call states that many men are leaving every day, while othérs are constantly arriving. Those going out have been forced to do so, by reason of.a lack of means to procure provisione until:the seaaon opens, and will nat; urally tell;hard stories about these mines ; .but, many-with whom he haa conversed aay they intend coming back in about a month, if, they can, progore pro visits at the, landing. The country has, been: very much overrated, and unless, other, digginge are:struck this season,, will not: be ‘of ,a capacity for more than two thousand.men. 1), iy) Oxe Sarpments.—According to the Bulletin's half yeatly commercial etatistice thé followin: ores Were shipped by sea from thia city for the eix thonths ending Juné 30th: To New: York (copper)' 214 tons, ‘worth $12,840; to New York (varioue) ‘174 ‘tone, worth $6,170; to Great Britain’ (copper) 74 tons, worth $7,966; silver 32 tons, wort: ‘$4,000; and 614 ‘tons of manganesé, worth’ $9,539." To'other countries we shipped one ton of copper oré worth $400 and two tons of eilver ore worth $1,200. Thie makés @ total shipmént of 1,111 tone, valued'at Dz. SuRewssuny and party, of Santa Barbara, last week discovered a very rich lode of ciinabar. ori Canada loa ‘Osos, in 'the Santa Inéz " mountiins, about twenty-five! miles by road from Santa’ Barbara. i its tote q 4 ae ofan ee et ) Typo.—It is rumored that a party of proepectors have recently etruok rich minee'in the’ neighborhood ‘of 'Tybo. The exact location is kept eecret until the discoverers have taken up the ground they want. ; Tue, Arizona papers are filled with ‘acconnts of rich strikesiu new and old mines, and of gold, silver and coppsr bullion received at Yuma and TUCSON: ees: 1; eee: . 2 Tue two Riotto and Luckhardt furnaces, being putup onthe Borax company’s property, are of 40 tons opacity. 9 Hy ‘Beach Mining along our Gold Coast. fe fi aloes ayer 3 Ne A De . Beach’ ‘mining, after an active period, occur= . ring some twenty yesrs sgo, when the cream of these deposit rampeotndels <elammnad off by Ahoee in the field, has been sensibly revived ‘within thé past year ‘owing to’ the favorable . 7esults obtdined through the use’ of ‘improved processes and machinery, It was generally ‘supposed nntil within’a few yeare ago, that the grester'portion 6f the ‘gold contained ‘in these ; each sande was saved by the elnices, oopper )plates, etc,,, then injuse. But thoussuds of ‘dssays and other tests have sincé proved that niost' casée fully ‘four-fiftts of this gold ie invisible to the naked eye ind was, Jost in all Ale ‘3 ie }former workings. ;When this: fact became es‘tablished, interested parties set to'wotk to3p @" Solve the. Problem, .,, . How.to separate these. infinitesimal particles of gold from the heavy blaok sand’ with which they are aséociated. ‘And it proved to be one has yet puzzled the brains of scien ifio men or honest miners. The extreme lightnese of the ‘minute particles of gold'and the great weight of the grains of blick sand ‘rendered any’ process of concentration or amalpamation, baséd upon their relative, epecific gravity, impractic‘able; and another serioue obstacle wae enconntered in the existence of a coating or oxidetion {pon the surface “of‘these' tiny, microscopic specks of gold, which prevented amalgamation. Many thoussnde of dollars were epent in making tests and experiments to ohtain an eoono‘mical method ‘of working. Chlorination and other cheitiical modes of treatment were found to'be too expensive, but they .confirmed the absays, showing in ,. The Extraordinary Richness of the Sands, And etimulated those interested to further efforts to overcome all obstaclee. A viet amount of this sand was proven to contain from $10 to $30 per ton, snd results were frequently obtained showing eeveral times these values: The moet extensive of these deposits yet developed are located at Rsandolph, Coos Co., Oregon, where the claime of Messrs. Lockhart & Lane .are known to contain eeveral millions of tons of black sand worth from $5to $100 per ton, or an average say of $15 to $20 per.ton, leaving enormous profite for working by a procees not costing’.more than $3 per’ ton: ’ The cost of mining the sand is merely nominsl'in most cases. Plenty of similar deposits, though of less extent, exist at various localities along the river, and in fsct ' aes Extending North'to Alaska. fy The most extensive deposite are thoee of the ancient ocean heaches, formed before the late upheavals of the coast ine, and lying back of and above the present occan beach. . But there are immense quantities of rich eand upon the present beach also, that will be worked at great profit, as they are more accessihle end easier mined. Indeed, the qusntity of black sand iu rying from five dollars to ten déllare per ton, may he considered almost inexhaustible. ‘ But these placere have lain for many years almost unnoticed and uuworked for want of a procese and machinery that would save this fine, flour gold. So many have had their wits at work at ou'the problam within the last two years Ce ee ee a! Perseverance has at Length been Rewarded by i. f 4 Sueeess, , And a new branch of mining induetry developed which is of far greater magnitude and importance than the publio: or even the mining portion of the community are aware'of. This microscopic or,’flour’’.gold exista. in large quantities in all our gravel-and placer digginge, ‘se ‘well a3 in the tailinge. of our qnartz mills, and ‘is loet to a great, extentas mining operatione are now conducted. ‘The snccessful treatment of the hlack sand of the ocean beachis much: more difficult than of any other class of anriferous deposits, and hence the process which overcomes snch obstacles will ,cesily ‘eonquer those involved in ordinary placer.mining, and millions of-dollars, now. lost annually, will hereafter be. saved by the new treatment. ‘The great difficulty experienced in saving, these infinitesimal particlee of gold arisés from. the fact that they are so light that the current of water employed in, ordinary mining operatione carries them off; their, gravity not ,hoing sufti‘cient to overcome the force of, the current. )Thie has been obviated by effecting amalgama‘tion before subjecting’ the sands or, pulp to a stream of water, which regnlt is secured hy . Evaporating the Quicksilver Under Water. . Heating the,sand or pulp contaiuing a proper quantity of quicksilver “with plenty of ;water, ae to the hoiling point, catises the mercury to expand and diffuse itself all through the maes in minute globules which unite with the fine particles of gold, provided the latter arein a proper condition to amalgamate. , The heating aids to remove the coating upon the gold, but to effect a thorough, preparation for ,amalgamation the ‘eand is first eubjected for come hours to a chemical preparation which,is not ‘the fiue particles of amalgam (some of which are etill 90 fine to he yisible to the naked eye) together, after the boiling, without too great a t ‘ofthe most difficult thinge to’ accomplish that . . with flattering euccees. The owner of that {for the necessary machinery, which is to be Surveyor-General, acting under advice from decided that ocean heach did not oome within coast from Humboldt bay to the Columbia } t fee Fh these beach deposits, ancient and modern, car}. ). expensive, though very powérful. The next.) '. and final difficulty to be overcome, ie to collect ¢ ty by no other means.' These are only-a few'. ' loss. The loss of quickeilver by the mille in Washoe aversges"about one and a-half pounde per ton of ore, while a-loss of as many ounces in working black-sand would léave little or ‘tio profit to the.miner; because, being ;amalgam, the loss in gold ‘would be too great., a, a _The Perseverance Black Sand, Mining, Co., . Recently incorporated in this city, hae snccseded, after spending more thén a year’s time and séveral thousand dollers, ‘in’, pérfécting a‘ mechine for eeparsting these fine.perticles of. qnicksilyer or amalgam .from the , heavy. blsck eand without msterial logs, and. at a trifling expenee. This company is about to commence operations on a large scalé with the new process and machinery; upon; théir claime. hear the; mouth of Rogue river, where .they have secured extensive deposite of theee sands, 'as rich se any on the coast.; Through the aid of this improvement it is thought a new era will be introduced into imiuing, by saving at least ninety per cent. of the mictoscopic. gold hitherto lost through the imperfect processes ‘and mschinery in uee. The ordinary bieck snnds, as stated above, contsin . from $5 to $15 per ton; and many deposits, containing thoue-. ands of tone, run, up to twice and even three times theee.figures. ' The cost of working hy he new method will be from $2 to $3 per ton, including mining,, which in most oases is merely nominal. . 1 u , Operations similar,to those of the Perseverance company are soon to!-be; stsrted on the Lockhart claim, near Randolph, by Mr. John Bray, who has been,experimenting on the sind claim it now in thie city making preparations forwarded to the mine and set,to work ae eoon "d@ possible. vine cewe tv. 4 at es . Ae a field:for mining, this northern gold ooast presents some ; 5 ' Peculiar Advantages for Men of Small Means. Inthe first place, it is essily and cheaply accessible; then, no great amount of capital is required for out-fitting porposes; while again, there is not much trouble in-‘eecuring cleims for working, the chances'of. taking up ground or buying from former locators -being good at most points along the coast. . ft! 5, :) Atone time there wae'an effort made to take np the etrip of ocean beach between the line of high and Jow water, under the law of Congress pranting to the State all swamp and overflowed lauds between its borders. But the the Commissioner of the Geners] Land Office, the perview: of that law, which, was designed to cover only the overflowed grounde along our baye and other ;inland watere.:’>This places these modern sea beachés, wherever found to be auriferous, among other mineral lands belonging,to the public domain. Hence they are open to location by the miners, who may occupy and’ hold them under euoh local regnlatione as they may themselyee cee fit’ to adopt, so Jong as these,conform to the statutee enact-. ed by the generdl and State governments. ' . ) Why We Should Exhibit. None but a very few lukewarm citizene-have probably iasked themselves thia question, and’ probably the ‘only -reason any of them have done ‘eo ie beoaties they thought the ontlay would amount to more than they could afford., Fairs and exhibitions of all kinds are,, how-_ ever, the very best meana of advertising, an the expense attendaut on preparing.a suitable display is very sniall compared with the benfitsderived. It ahould be recollected also that the prosperity of the city and State may he very well measured by the character and extent of' the proposed exhibition of the Mechanics’ Inetitute. If'visitora see a meager and ill-conditioned dieplay they naturally connect it with want of -proeperity among the man-nfacturers’ and artissne; and ae this claes of citizens! are generally dependent on ‘the pros-' perity of the State, théy ‘should make every effort to demonetrate the fact that our'affairs’ are proeperous. OE i a el If one firm displaye a-certain oless of goode or merchandiee, and there are no others of that class in the Fuir, the public naturally enpposes that this firm doee the largest: bueiness in that cless of goode or merchandiee, and afterwards if they ate méntioned:it will-be remembered ‘that such'a display wae’made by-euch a firm, and no one conld cumpéte with them. If there are. several firms which display articlee of a similar oharacter; the public visiting the Fair will take the opportunity to inform iteslf of tbe comparative meérits’of the articles, and in this will bo inflnenced, to a great extent by the taste. . with which the articles are exhihited. « / °° . No business mau conld desire a better adver: tisemeot than will be afforded him at the ap.proaching Fair. He shows articles in his line. in a place where more people will'see them in one day than would see them in'a year in the etore. He showe them in au attractive form before the very people to whom he desires to sell, and they examine them ata time when they have more leisuré than they have during . Shoes and Dies from the California off pMaanétites, oo 1) . -It haé been eaid thata nation’s advancement in civilization ie in ratio to the: quantity of iron tonsumed. Notwithetanding the enormous quantity nsed, the denisnd is ‘increasing, psrtivularly on this'cosat.’. The estimsted'’ dost ‘of the ‘yearly cousumption’ *of iron’ here . is! $9,000,000,-all imported. "This isa very -important item agdinst us on: the bdlance . cheat oftrade. There are plenty. of ysluable deposits of:iron ore in thie, State, but; want of proper fuel, finx, etc., hag prevented them from being , worked; neverthelese, there sre certain, cf these deposite which.ought be, made ayailable if our espitslists; would interest themselves in. the matter, In thie connection we may introduce the following letter, received by us from.J. S. 5., of ,Rsilroad Flat, Calaveras county, Cali-,; The iron depositsof Calaveras county alone are sufficient to eupply the nation: for generatione to come. In this vicinity there is a vein of magnetic iron ore, varying from fiveto thirty feet in width, that assays from fifty to seventytwo per cent, in pure iron; in a locslity where timber, limestone and sospstone are ahundant; also, exoellent water-power privileges; .in fsot, every facility for the manufactnre of iron., \.“Ttis false, economy to continue the importation of iron, and export our precious metale in, exchange, To illnetrate the absurdity of this stete of things,—A quartz inill ie being built in « thie vicinity within a few rods of an immense deposit of iron ore, almoet pure enough for the shoes and dies, for the batteries of the mill; yetimported iron is used in the construction 8t'a cost of five to nine cents per pound,; »; ,,. “If a portion of the money that is being spent, ; in remote loealitiee, by our capitaliets, in.developing uncertein prospects for gold and silver, wae direoted toward developing the iron mines at home, they would, undoubt, edly receive better retnarns on their ,investments. But ‘distance lends enchantment to tha view,’ conseqnently the periodical hegirss of miners to the frozen regions of the, north, , and to the, hot deserts, ofthe south, in searoh of ‘new El Dorados, ,where fortunes are.often lost . but seldom won, will continue,” re) to ey . There ie a difference of opinion ae to whether these iron deposita could be worked witb profit oua large scale, Bo that ae it may, our attention was eslled by the above letter toa matter . of some importsnce to our mining population, ind which may, at the ssme time, add another . industry to our home msnufactures. That. is, that shoes, dies, picks and other mining , tools . . ought to be made from the California magnetites, From inquiries we have made, we are: sure that small eetablishmente with a small capitsl will be profitable, and will have a certsinty of success. We will enter more into the detaile of this snbject in our next issne. The Exhibit of Machinery at the Fair. a Fy Se : . Tbeiron foundries of this city will probably make ae fine a dieplay at the Meohanice’ Insti. ‘tute Fair ae that of any other branch’of industry in our midst. People generelly take a great interest in machinery in this country, and the machinery department, though not a favorite place , withthe Jadies, proves the center of attraction: for the more intelligent of the male ! part of the community. Ae power ia fnrnished . ree, all. sotts of machinery oan be shown in ! working: order, anid out foundrymen will, no doubt, take advantage of this free opportunity’? of displaying the results of their skill. © * ‘ . The machinery ig to be run by a fine engine, made.in thie city for the Palace Hotel, now’ in’ course, of conetruction. The firm that msnufaotore this engine propoee displaying seventeen enginee of different sizee and olssses, all made in this city. The large engine to drive! the machinery ie a powerful one, as it needs to‘ be'to drive even. the pumps alone, if the Exhition: in that line bears:proportion to previous years. It ie very handsomely finished, and! is jnite ornamental as well as nsefnl. . : ‘} The foundrymen of this oity snpply our whole coaet with all classeé of machinery, and are acouetomed to receive ordera for everything in their line, from a key-bolt up to a 60-etamp ° mill or,a compound engine. 'Theclaes of work! ie, «therefore, not reetrioted, and the display ought to he hoth varied and large in.caee theyohoose to exert themeelves. In mining maohinery ,in partioular, they excel atl other parts of the world, and it is to be. hoped that some’! ‘one of them, at leaet, will chow the city public a quartz mill, engine, hattery, andall complete. » When vieitors show ‘signe of being: too agethetio in their tastes they can be drawn from the art . gallery and the music to consideration of mat‘gers of more utility, by simply starting up ° the etamps; which will most etisotually drown ° sounds of the band, and even that of the ever‘laeting pianos themeelves. —* gee i _Curyeer Mivers.Some five or six wagone, ‘loaded with Chinamen and their traps, have basiness houre. » This is an opportunity which . left the Dalles during the last ten daye, bound no husinese’ can offord to lose. The Mechan.' ids’ Institute afford a firie building and space fyee to all, and what is more, provide an audionce daily and nightly for a month in eucceesju, such 26 wonld be brought together in this’ réasons ‘why we ehould exhibit ?”’ but looking at the Exhibition from a bnsiness point of for the interiot gold mines.’ One load wae tdken up ‘the Columbia river to’the, month of the John Day, where they’ intend mining on 4 bar near that locality. nbs lWorr on the Brownlie quicksilver” mine, , near Vallejo, ie progressing favorably. About , view, they arecogent ones. :. e fifteen or tweuty men are employed, and one, tunnel is now in two hundred feet.) ~~ eect

MINING AND SCIENTIFIC PRESS. [July , 25». 1874, 3, SENIOR Enrror. DEWEY «,.CO., Publishers. A. Te DEWEY, 51, {al h : GEO. H. BTRONO. W. BeEWER, yf) 0 jer ifn , JNO, L. BOONE, Office, No. 224 Sansome St., sim. ‘Cornér of California St.,;SanFrancieco.; «1 1 Supsorreriona payable inadvance=¥For one year, $4;'. eix months, $2.25; three: months, $1,25. Remittances hy registered letters orP.0. orders at ourrisk. , AnVERTISING RATHO,—I week, Lmonth, Smonths. (1 year. Per line. .j esses 25 . 80°” $2.00 $9.0 One-half in 00" ($3.00. ? $7.50! . 24.00 Cne inch. 2.00: 5.00.° 14.00). ‘40.00 Large advertisements at favorahle rates. Special or, reading noticés, legal advertisements, notices appearing in extraordinary type.or in particular parts of the paper, be Hi ingorted at special rates. oe TnOL aL PA ATT ay wa igo Ban Francisco: Saturday Morning, July 25, 187 4: ' TABLE (OF CONTENTS. ° CoE Garey ist Putten pene ats ft me BNERAL! EDITORIALS: — Patent ‘Buffalo” os ortge 5 Burleigh; Drills; Usee!and Benefits of Industrial Fairs;,,Jteady;Relief Mine, 49. Beach Mining on our Gold Coast. Why We Shonld Exhibit; Shoes and Dies trdm the California Magnetites; Exhihit of Machinery at'the Fair,/56.” The Shaker Sash Balance;! rons SaadisA y of 8 Com. encement at Cakland,5'7., Invention and Progress; atents and Inventions, 60.. 0. ¥ ILLUSTRA TIONS.—Patent “Biffalo” Carriage for Burleigh Drilie;49,. ‘The Shaker Sash Balauce, 6'7. SCIENTIFIC PROGRESS.—Yelocity of Nervons Impulaes; Photography, at the Bott of the ‘Sea; . Men of Stience; ‘Temperature of the Earth; Detection of Phoaphorus; Evolution of Gases frem Molten CastTron, Baath 5 ese ti se ude Tne pr} 4 MEOHANICAL ,PROGRESS.'— Watches: New Mechanical Cniter.out: Paper from Jute; Testing, Armor Plates; A’Gompotind Locomotive; Liqnefying’ Gases; Hollow Bee Furnaces; Improved’ FishGrappling Spear,51.-— —--—— —~— Bue ING. stock MARKET.—Tahle. of Daily Saleaand Pricés and Comparative Prichs for, the Week; Notices” of ‘Assessments, Meetings and’ Dividende;’ Review lof Stock Market for the, Week, 52. i>. . + MINING SUMMARY sre. various countles in California and Neyada, 52-3.. GOOD HEALTH.—The Human Frame—No. 7; Poisoning'by Carbolio Acid; Cheese ia&) Food;' ‘Training EEUL: <7-Spontaneons Comhustion; On of Timber; Starch; Zinclng Tron: Waterproofing Leather; ToPolish Brass; Wax for Ploors;‘Colcring Veneers, 65.: +> . tf a MISCELLANEOUS.. The Globe Consolidated Mine; Pioche Mines;. New Mexican Mines; Enreka Mines; : California’ ‘Microscopical ‘Society: Sierra Connty Minee?)Ruhy ‘Hill! Water Works, 60." Resources of (Nevada;, Straw-Burning Engines; Tyho District:. How Ahout Silk Gultnre?, Plucky hut Pru. dent; The Rattleanaké Quicksilver Mine, Wild Coffce; Smélting Operations; Mine Dralning Apparatue: Cortez and Bnilion Districts: Gold’ in. Chunks; A, Ble Cistern; A Venturesome Trip, 54. Montana Silver Mines; Original.Gold Hill Quartz Mining Company; Machinists in the Navy; The ‘Oil Regiona of Los Angeles; “The Pine’ Belt: sganut ae Mines; Great Gravel Mining Field; Coal!Mining in China; Panamint, 58.Srrogusy. Munes,—The eteamer , California arrived at Portland from Sitka-on Sunday evenings. She “brought ‘eighty miners from Wrangel, and two hundred more were expected there daily, on. their way home. They bring discouraging news., The rush has been too great, for {he small number of; paying claims diecovered. . Ay, Correspondent writing from there fo the; Call states that many men are leaving every day, while othérs are constantly arriving. Those going out have been forced to do so, by reason of.a lack of means to procure provisione until:the seaaon opens, and will nat; urally tell;hard stories about these mines ; .but, many-with whom he haa conversed aay they intend coming back in about a month, if, they can, progore pro visits at the, landing. The country has, been: very much overrated, and unless, other, digginge are:struck this season,, will not: be ‘of ,a capacity for more than two thousand.men. 1), iy) Oxe Sarpments.—According to the Bulletin's half yeatly commercial etatistice thé followin: ores Were shipped by sea from thia city for the eix thonths ending Juné 30th: To New: York (copper)' 214 tons, ‘worth $12,840; to New York (varioue) ‘174 ‘tone, worth $6,170; to Great Britain’ (copper) 74 tons, worth $7,966; silver 32 tons, wort: ‘$4,000; and 614 ‘tons of manganesé, worth’ $9,539." To'other countries we shipped one ton of copper oré worth $400 and two tons of eilver ore worth $1,200. Thie makés @ total shipmént of 1,111 tone, valued'at Dz. SuRewssuny and party, of Santa Barbara, last week discovered a very rich lode of ciinabar. ori Canada loa ‘Osos, in 'the Santa Inéz " mountiins, about twenty-five! miles by road from Santa’ Barbara. i its tote q 4 ae ofan ee et ) Typo.—It is rumored that a party of proepectors have recently etruok rich minee'in the’ neighborhood ‘of 'Tybo. The exact location is kept eecret until the discoverers have taken up the ground they want. ; Tue, Arizona papers are filled with ‘acconnts of rich strikesiu new and old mines, and of gold, silver and coppsr bullion received at Yuma and TUCSON: ees: 1; eee: . 2 Tue two Riotto and Luckhardt furnaces, being putup onthe Borax company’s property, are of 40 tons opacity. 9 Hy ‘Beach Mining along our Gold Coast. fe fi aloes ayer 3 Ne A De . Beach’ ‘mining, after an active period, occur= . ring some twenty yesrs sgo, when the cream of these deposit rampeotndels <elammnad off by Ahoee in the field, has been sensibly revived ‘within thé past year ‘owing to’ the favorable . 7esults obtdined through the use’ of ‘improved processes and machinery, It was generally ‘supposed nntil within’a few yeare ago, that the grester'portion 6f the ‘gold contained ‘in these ; each sande was saved by the elnices, oopper )plates, etc,,, then injuse. But thoussuds of ‘dssays and other tests have sincé proved that niost' casée fully ‘four-fiftts of this gold ie invisible to the naked eye ind was, Jost in all Ale ‘3 ie }former workings. ;When this: fact became es‘tablished, interested parties set to'wotk to3p @" Solve the. Problem, .,, . How.to separate these. infinitesimal particles of gold from the heavy blaok sand’ with which they are aséociated. ‘And it proved to be one has yet puzzled the brains of scien ifio men or honest miners. The extreme lightnese of the ‘minute particles of gold'and the great weight of the grains of blick sand ‘rendered any’ process of concentration or amalpamation, baséd upon their relative, epecific gravity, impractic‘able; and another serioue obstacle wae enconntered in the existence of a coating or oxidetion {pon the surface “of‘these' tiny, microscopic specks of gold, which prevented amalgamation. Many thoussnde of dollars were epent in making tests and experiments to ohtain an eoono‘mical method ‘of working. Chlorination and other cheitiical modes of treatment were found to'be too expensive, but they .confirmed the absays, showing in ,. The Extraordinary Richness of the Sands, And etimulated those interested to further efforts to overcome all obstaclee. A viet amount of this sand was proven to contain from $10 to $30 per ton, snd results were frequently obtained showing eeveral times these values: The moet extensive of these deposits yet developed are located at Rsandolph, Coos Co., Oregon, where the claime of Messrs. Lockhart & Lane .are known to contain eeveral millions of tons of black sand worth from $5to $100 per ton, or an average say of $15 to $20 per.ton, leaving enormous profite for working by a procees not costing’.more than $3 per’ ton: ’ The cost of mining the sand is merely nominsl'in most cases.. Plenty of similar deposits, though of less extent, exist at various localities along the river, and in fsct ' aes Extending North'to Alaska. fy The most extensive deposite are thoee of the ancient ocean heaches, formed before the late upheavals of the coast ine, and lying back of and above the present occan beach. . But there are immense quantities of rich eand upon the present beach also, that will be worked at great profit, as they are more accessihle end easier mined. Indeed, the qusntity of black sand iu rying from five dollars to ten déllare per ton, may he considered almost inexhaustible. ‘ But these placere have lain for many years almost unnoticed and uuworked for want of a procese and machinery that would save this fine, flour gold. So many have had their wits at work at ou'the problam within the last two years Ce ee ee a! Perseverance has at Length been Rewarded by i. f 4 Sueeess, , And a new branch of mining induetry developed which is of far greater magnitude and importance than the publio: or even the mining portion of the community are aware'of. This microscopic or,’flour’’.gold exista. in large quantities in all our gravel-and placer digginge, ‘se ‘well a3 in the tailinge. of our qnartz mills, and ‘is loet to a great, extentas mining operatione are now conducted. ‘The snccessful treatment of the hlack sand of the ocean beachis much: more difficult than of any other class of anriferous deposits, and hence the process which overcomes snch obstacles will ,cesily ‘eonquer those involved in ordinary placer.mining, and millions of-dollars, now. lost annually, will hereafter be. saved by the new treatment. ‘The great difficulty experienced in saving, these infinitesimal particlee of gold arisés from. the fact that they are so light that the current of water employed in, ordinary mining operatione carries them off; their, gravity not ,hoing sufti‘cient to overcome the force of, the current. )Thie has been obviated by effecting amalgama‘tion before subjecting’ the sands or, pulp to a stream of water, which regnlt is secured hy . Evaporating the Quicksilver Under Water. . Heating the,sand or pulp contaiuing a proper quantity of quicksilver “with plenty of ;water, ae to the hoiling point, catises the mercury to expand and diffuse itself all through the maes in minute globules which unite with the fine particles of gold, provided the latter arein a proper condition to amalgamate. , The heating aids to remove the coating upon the gold, but to effect a thorough, preparation for ,amalgamation the ‘eand is first eubjected for come hours to a chemical preparation which,is not ‘the fiue particles of amalgam (some of which are etill 90 fine to he yisible to the naked eye) together, after the boiling, without too great a t ‘ofthe most difficult thinge to’ accomplish that . . with flattering euccees. The owner of that {for the necessary machinery, which is to be

Surveyor-General, acting under advice from decided that ocean heach did not oome within coast from Humboldt bay to the Columbia } t fee Fh these beach deposits, ancient and modern, car}. ). expensive, though very powérful. The next.) '. and final difficulty to be overcome, ie to collect ¢ ty by no other means.' These are only-a few'. ' loss. The loss of quickeilver by the mille in Washoe aversges"about one and a-half pounde per ton of ore, while a-loss of as many ounces in working black-sand would léave little or ‘tio profit to the.miner; because, being ;amalgam, the loss in gold ‘would be too great., a, a _The Perseverance Black Sand, Mining, Co., . Recently incorporated in this city, hae snccseded, after spending more thén a year’s time and séveral thousand dollers, ‘in’, pérfécting a‘ mechine for eeparsting these fine.perticles of. qnicksilyer or amalgam .from the , heavy. blsck eand without msterial logs, and. at a trifling expenee. This company is about to commence operations on a large scalé with the new process and machinery; upon; théir claime. hear the; mouth of Rogue river, where .they have secured extensive deposite of theee sands, 'as rich se any on the coast.; Through the aid of this improvement it is thought a new era will be introduced into imiuing, by saving at least ninety per cent. of the mictoscopic. gold hitherto lost through the imperfect processes ‘and mschinery in uee. The ordinary bieck snnds, as stated above, contsin . from $5 to $15 per ton; and many deposits, containing thoue-. ands of tone, run, up to twice and even three times theee.figures. ' The cost of working hy he new method will be from $2 to $3 per ton, including mining,, which in most oases is merely nominal. . 1 u , Operations similar,to those of the Perseverance company are soon to!-be; stsrted on the Lockhart claim, near Randolph, by Mr. John Bray, who has been,experimenting on the sind claim it now in thie city making preparations forwarded to the mine and set,to work ae eoon "d@ possible.. vine cewe tv. 4 at es . Ae a field:for mining, this northern gold ooast presents some ; 5 ' Peculiar Advantages for Men of Small Means. Inthe first place, it is essily and cheaply accessible; then, no great amount of capital is required for out-fitting porposes; while again, there is not much trouble in-‘eecuring cleims for working, the chances'of. taking up ground or buying from former locators -being good at most points along the coast. . ft! 5, :) Atone time there wae'an effort made to take np the etrip of ocean beach between the line of high and Jow water, under the law of Congress pranting to the State all swamp and overflowed lauds between its borders. But the the Commissioner of the Geners] Land Office, the perview: of that law, which, was designed to cover only the overflowed grounde along our baye and other ;inland watere.:’>This places these modern sea beachés, wherever found to be auriferous, among other mineral lands belonging,to the public domain. Hence they are open to location by the miners, who may occupy and’ hold them under euoh local regnlatione as they may themselyee cee fit’ to adopt, so Jong as these,conform to the statutee enact-. ed by the generdl and State governments. ' . ) Why We Should Exhibit. None but a very few lukewarm citizene-have probably iasked themselves thia question, and’ probably the ‘only -reason any of them have done ‘eo ie beoaties they thought the ontlay would amount to more than they could afford., Fairs and exhibitions of all kinds are,, how-_ ever, the very best meana of advertising, an the expense attendaut on preparing.a suitable display is very sniall compared with the benfitsderived. It ahould be recollected also that the prosperity of the city and State may he very well measured by the character and extent of' the proposed exhibition of the Mechanics’ Inetitute. If'visitora see a meager and ill-conditioned dieplay they naturally connect it with want of -proeperity among the man-nfacturers’ and artissne; and ae this claes of citizens! are generally dependent on ‘the pros-' perity of the State, théy ‘should make every effort to demonetrate the fact that our'affairs’ are proeperous. OE i a el If one firm displaye a-certain oless of goode or merchandiee, and there are no others of that class in the Fuir, the public naturally enpposes that this firm doee the largest: bueiness in that cless of goode or merchandiee, and afterwards if they ate méntioned:it will-be remembered ‘that such'a display wae’made by-euch a firm, and no one conld cumpéte with them. If there are. several firms which display articlee of a similar oharacter; the public visiting the Fair will take the opportunity to inform iteslf of tbe comparative meérits’of the articles, and in this will bo inflnenced, to a great extent by the taste. . with which the articles are exhihited. « / °° . No business mau conld desire a better adver: tisemeot than will be afforded him at the ap.proaching Fair. He shows articles in his line. in a place where more people will'see them in one day than would see them in'a year in the etore. He showe them in au attractive form before the very people to whom he desires to sell, and they examine them ata time when they have more leisuré than they have during . Shoes and Dies from the California off pMaanétites, oo 1) . -It haé been eaid thata nation’s advancement in civilization ie in ratio to the: quantity of iron tonsumed. Notwithetanding the enormous quantity nsed, the denisnd is ‘increasing, psrtivularly on this'cosat.’. The estimsted'’ dost ‘of the ‘yearly cousumption’ *of iron’ here . is! $9,000,000,-all imported. "This isa very -important item agdinst us on: the bdlance . cheat oftrade. There are plenty. of ysluable deposits of:iron ore in thie, State, but; want of proper fuel, finx, etc., hag prevented them from being , worked; neverthelese, there sre certain, cf these deposite which.ought be, made ayailable if our espitslists; would interest themselves in. the matter, In thie connection we may introduce the following letter, received by us from.J. S. 5., of ,Rsilroad Flat, Calaveras county, Cali-,; The iron depositsof Calaveras county alone are sufficient to eupply the nation: for generatione to come. In this vicinity there is a vein of magnetic iron ore, varying from fiveto thirty feet in width, that assays from fifty to seventytwo per cent, in pure iron; in a locslity where timber, limestone and sospstone are ahundant; also, exoellent water-power privileges; .in fsot, every facility for the manufactnre of iron., \.“Ttis false, economy to continue the importation of iron, and export our precious metale in, exchange, To illnetrate the absurdity of this stete of things,—A quartz inill ie being built in « thie vicinity within a few rods of an immense deposit of iron ore, almoet pure enough for the shoes and dies, for the batteries of the mill; yetimported iron is used in the construction 8t'a cost of five to nine cents per pound,; »; ,,. “If a portion of the money that is being spent, ; in remote loealitiee, by our capitaliets, in.developing uncertein prospects for gold and silver, wae direoted toward developing the iron mines at home, they would, undoubt, edly receive better retnarns on their ,investments. But ‘distance lends enchantment to tha view,’ conseqnently the periodical hegirss of miners to the frozen regions of the, north, , and to the, hot deserts, ofthe south, in searoh of ‘new El Dorados, ,where fortunes are.often lost . but seldom won, will continue,” re) to ey . There ie a difference of opinion ae to whether these iron deposita could be worked witb profit oua large scale, Bo that ae it may, our attention was eslled by the above letter toa matter . of some importsnce to our mining population, ind which may, at the ssme time, add another . industry to our home msnufactures. That. is, that shoes, dies, picks and other mining , tools . . ought to be made from the California magnetites, From inquiries we have made, we are: sure that small eetablishmente with a small capitsl will be profitable, and will have a certsinty of success. We will enter more into the detaile of this snbject in our next issne. The Exhibit of Machinery at the Fair. a Fy Se : . Tbeiron foundries of this city will probably make ae fine a dieplay at the Meohanice’ Insti. ‘tute Fair ae that of any other branch’of industry in our midst. People generelly take a great interest in machinery in this country, and the machinery department, though not a favorite place , withthe Jadies, proves the center of attraction: for the more intelligent of the male ! part of the community. Ae power ia fnrnished . ree, all. sotts of machinery oan be shown in ! working: order, anid out foundrymen will, no doubt, take advantage of this free opportunity’? of displaying the results of their skill. © * ‘ . The machinery ig to be run by a fine engine, made.in thie city for the Palace Hotel, now’ in’ course, of conetruction. The firm that msnufaotore this engine propoee displaying seventeen enginee of different sizee and olssses, all made in this city. The large engine to drive! the machinery ie a powerful one, as it needs to‘ be'to drive even. the pumps alone, if the Exhition: in that line bears:proportion to previous years. It ie very handsomely finished, and! is jnite ornamental as well as nsefnl. . : ‘} The foundrymen of this oity snpply our whole coaet with all classeé of machinery, and are acouetomed to receive ordera for everything in their line, from a key-bolt up to a 60-etamp ° mill or,a compound engine. 'Theclaes of work! ie, «therefore, not reetrioted, and the display ought to he hoth varied and large in.caee theyohoose to exert themeelves. In mining maohinery ,in partioular, they excel atl other parts of the world, and it is to be. hoped that some’! ‘one of them, at leaet, will chow the city public a quartz mill, engine, hattery, andall complete. » When vieitors show ‘signe of being: too agethetio in their tastes they can be drawn from the art . gallery and the music to consideration of mat‘gers of more utility, by simply starting up ° the etamps; which will most etisotually drown ° sounds of the band, and even that of the ever‘laeting pianos themeelves. —* gee i _Curyeer Mivers.Some five or six wagone, ‘loaded with Chinamen and their traps, have basiness houre. » This is an opportunity which . left the Dalles during the last ten daye, bound no husinese’ can offord to lose. The Mechan.' ids’ Institute afford a firie building and space fyee to all, and what is more, provide an audionce daily and nightly for a month in eucceesju, such 26 wonld be brought together in this’ réasons ‘why we ehould exhibit ?”’ but looking at the Exhibition from a bnsiness point of for the interiot gold mines.’ One load wae tdken up ‘the Columbia river to’the, month of the John Day, where they’ intend mining on 4 bar near that locality. nbs lWorr on the Brownlie quicksilver” mine, , near Vallejo, ie progressing favorably. About , view, they arecogent ones. :. e fifteen or tweuty men are employed, and one, tunnel is now in two hundred feet.) ~~ eect