Engineering and Mining Journal, Volume 77Western and Company, 1904 - Engineering |
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American amount anthracite antimony assay average blast British Columbia bullion camp carbon cent closed coal coke Colo Colorado concentrates Consolidated copper cost Creek Cripple Creek cyanide December demand deposits district dividends engineer Exports furnace Geological Gold Mining grade hot blast important increase January Kalgoorlie labor Lake Lake Superior lead Leadville lode London long tons manager manufacture material matte ment metal metallurgy Mexico miles mill miners Mining Company months mountain opened operation output oxide pany pig iron Pittsburg plant ports production profit pump pyrite quantity quartz quotations railroad reported river rock Rossland schist shaft shares shipments shipped short tons silver smelter smelting sold South Special Correspondent Steel sulphide sulphur supply tion Tonopah tons trade tunnel United Utah vein week York zinc