The Mexican mining journal . Colorado. The process consists ofoperating a series of Dorr continuousthickeners in such a manner that the solids, with a small portion of liquid,,pass suceccessively from one thickenerto the next, being finally dischargedfrom the last thickener as tailing. A plan to eliminate the personalequation in bullion assaying is used inthe Salida smelting works, Colo. Thefused and poured samples come into theassay office in the form of irregula:-drops in the usual way. These areweighed without trimming, so that thereis no uniform definite weight of cuppelling a
The Mexican mining journal . Colorado. The process consists ofoperating a series of Dorr continuousthickeners in such a manner that the solids, with a small portion of liquid,,pass suceccessively from one thickenerto the next, being finally dischargedfrom the last thickener as tailing. A plan to eliminate the personalequation in bullion assaying is used inthe Salida smelting works, Colo. Thefused and poured samples come into theassay office in the form of irregula:-drops in the usual way. These areweighed without trimming, so that thereis no uniform definite weight of cuppelling and parting, the as-sayer reports the actual weights of thesample taken and the silver and goldrecovered. The calculations are thenmade in the office on a machine. In thisway the assayer is not tempted to makehis results check, for until the calcula-tions are made he does not know whetherthey will check or not. 414 MEXICAN MINING JOUIINAL. November, 191$ HAMMOND IRON WORKS WARREN,PENNA., U. S. A. Manufacturers ofSTEEL TANK S. FACTORY SPECIALLY DESIGNEDFOR MAKING STEEL TANKS. , -j •• ¡ J ; ; 1 i » • l TANKS OF SPECIAL DESIGN FOR CYANIDE WORK,TANKS FOR STORAGE OF PETROLEUM, FOR STOR-AGE OF MOLASSES, FOR CITY WATER PLATE CONSTRUCTION. NEW YORK 2728 WHITEHALL HJVMONDTAIMKWESTERN UNIONLIEBERS.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectminesandmineralresou
