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amalgamation assay average ball mill Bureau of Mines calcite Canyon capacity cars coal Comp compressor concentrates copper Corp cost country rock cyanide deposit detachable bits district drifts drill steel driven Dubbs dump dust e/Gladewater electric engine equipment explosions export feet deep feet long feet wide filter flotation flow sheet Frisco gravel hoist holes Humboldt Humboldt County I&GN inches INFORMATION CIRCULAR Katherine labor long ton Lovelock machine Metal miles miners motor Oatman Oil & Refg oils Cap operated ounces of gold ounces of silver overflow percent Pershing County Pine oil pipe placer plant pounds production pump pyrite quartz range Refg rhyolite rock S.d. Skim safety sample sand Santa Fe scheelite schist screen shaft shipped smelter Southern Pacific Railroad sphalerite Status Type stopes surface tailings tank thickener tons Total Trinity Range trucks Tungsten U.S. Bureau United Eastern vein wire xanthate
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Página 1 - The use of this mailing label to do so will be official business, and no postage stamps will be required UNITED STATES PENALTY FOR PRIVATE USE TO AVOID DEPARTMENT OF THE INTERIOR PAYMENT OF POSTAGE.
Página 58 - Whereas," says the preamble of the older act— that of 1775— "by the statute law of Scotland, as explained by the judges of the courts of law there, many colliers, and coal-bearers, and salters, are in a state of slavery or bondage, bound to the collieries or salt-works where they work for life, transferable with the collieries and salt-works ; and whereas the emancipating,