| Show EXTRACTION WITH CYANIDE Time Required Varies at Different Mills Where Process Is Used Tine time required for the complete extraction ex-traction of values by tho cyanide process depends upon HO many conditions that thc subject is too wide to consider fully In the cabinet says tho Denver Mining Reporter Re-porter It may bo stated however tnnt tho tendency is to lengthen the time ot treatment duo chiefly to tho lovcrlnix of thc strengths oC the solutlonfl used In a pamphlet issued In JSlX by tine McArtbur Korrcst company oC Glasgow the time given was about six hours A year or two later thc time most frequently mentioned men-tioned was twentyfour to thirtysix hours In ISM fortyoKht hours was a common time and today from seventy two to 120 hours appears to ho tho usual length oC time The time required depends de-pends upon 1 the slrn of the gold particles parti-cles 2 tho permeability of tnn ore 3 i the frcnKth of the solution The rule Is to treat tho ore lonp enough to get all possible valuca out The ore in tho vats consumes no power and by giving a longer long-er treatment all that Is needed are a few more ats and a larger building to keep them In The following arc a few of the times required at dlllc t mills Dexter Tuecarora Nevada ii hours Mercur Utah old mill 60 huurs JJocllu California ICC hours South Africa 5 to 10 days Little Chief to Ship Time Miner tolling of tub week at Tin tic says moping operations are being conducted on a threefoot body of lead ore in the Little Chief amid about Il eilroo load of Keloctcd material has accumulated Sonic handsome specimens were cxhlbitt today which assayed as high an 70 percent per-cent lead 23 ounces silver and 280 uold Other samples run higher in silver with less lead Work In tho Northern Spy shaft of tho Carlsa has been discontinued for two or three weeks until the steam hoist at the Carlsa l shaft can be moved over About ten lays work mitten time change Is made will complete tho connection with the SlouxAJstx tunnel In the meantime the leasers will continue operations through the Carlsa shaft using tho old gasoline hoist 7 r Fewson Smith chief of tho engineering engineer-ing corps of thc United States Mining company is at the Centennial IStircka mine bringing thc underground work up to Uvte for thc uso oC tho managerial staff Mining Notes Communication by wire with Alia has been shut off for several days News from tho Annie Lauries proposed dividend of J a share or 50OH Is I expected ex-pected hourly from the East Ralph Nichols who is examining the properties of tine Boston Con ut Bliiyhum leaven for camp to renew his work again this morning Local minehunters working under In Htrucllons from thc East are seeking a uulphuibcnrlnir proposition In this or any other State Walter G Filer leaves for California today to-day to bo present itt the starting of the new mill on the lIed Cross mines lie will bo iictompanled by Mrs Filer A letter from Brighton pays the ncnvy snowfall In that locality has driven not u few off the prospects and that alkies of snow arc threatened in many places v JJ Edwards who has been munnlln a Nevada proposition In which he is interested in-terested cimo In from the west yiter day accompanied by tho sol s-ol Eastern investors Telegrams from Tack Donovan to his partners in this ally would indicate hIs early return to Dawson City Certainly he will not overlook his large circle of friends hero Iri transit The management of the Avondale of Park City adjolnlntr the XaJIdrlvor will begin time orKanlaatlon oC Its forces for active development time present week Evorvthlni looks favorable to cheerful and substantial results A letter from the Kiisl to Maj Stanton Indicates somethiiipr definite In the option on the Queen of thc Hills out of Salmon City Ida In a few days Thu Major Is advised that his services will be required In the llnul examination Receivers receipts for pitents on the Champion group adjoining thc American Flat nt Park Cit > have reached the Lund ofllce anal tho fictive exploitation ot the property will follow It in said that very Important disclosures running well up In sold and silver have already been made |
