Engineering and Mining Journal, Volume 98McGraw-Hill Publishing Company, 1914 - Engineering |
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acid American amount Anaconda Ariz assay average baghouse blast furnaces bullion Butte Calumet capacity cars charge chute coal coke Colo concentrates Consolidated copper cost County cupel Cuyuna range cyanide deposits district dredge drift drilling electric electrolytic ENG.&MIN.JOURNAL equipment exports filter flue gold grade Hecla hoist holes illus installed iron Journ JOURNAL July July 14 July 21 June June 14 June 30 labor lead London long tons machine material matte ment Mesabi range metal miles mill miners months Name of Comp operations orebody pig iron pipe plant plates precipitate production profit pump quotations reported reverberatory furnaces roaster roasting rock sample shaft shipments shipped siliceous silver sinter slag slimes smelter smelting solution steam steel stope sulphur tank timber tion tonnage Tonopah tons tunnel Utah vein week York zinc