Silver and Gold: an Account of the Mining and Metallurgical Industry of the United States: With Reference Chiefly to the Precious MetalsJ.B. Ford, 1873 - 566 من الصفحات |
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الصفحة 26
... claim of Bunker & Co. , in the State of Oregon . A man named Fields in October last took from his claim on Kanaka Creek , Nevada County , a piece of quartz gold , weighing 96 ounces , and valued at $ 1,500 . The same man took from his claim ...
... claim of Bunker & Co. , in the State of Oregon . A man named Fields in October last took from his claim on Kanaka Creek , Nevada County , a piece of quartz gold , weighing 96 ounces , and valued at $ 1,500 . The same man took from his claim ...
الصفحة 33
... claims a decided advantage in his 400 light blows per minute over the 50 to 60 blows per minute delivered by the usual ... claim to work greater amounts of quartz in a given time and at less expense for cost of machinery . Of this ...
... claims a decided advantage in his 400 light blows per minute over the 50 to 60 blows per minute delivered by the usual ... claim to work greater amounts of quartz in a given time and at less expense for cost of machinery . Of this ...
الصفحة 55
... claim fifty - five feet square yielded $ 100,000 , and that the total product of the flat was not much less than $ 2,000,000 . While any estimate of the yield of a tract of mining ground in early times must be accepted with due ...
... claim fifty - five feet square yielded $ 100,000 , and that the total product of the flat was not much less than $ 2,000,000 . While any estimate of the yield of a tract of mining ground in early times must be accepted with due ...
الصفحة 57
... claim before erecting sluices ) paid him $ 150 . In the rear of this same building , a few years since , one 25 - pound chunk was found , and several of nearly that weight . A dog , digging for a gopher , at one time scratched out a ...
... claim before erecting sluices ) paid him $ 150 . In the rear of this same building , a few years since , one 25 - pound chunk was found , and several of nearly that weight . A dog , digging for a gopher , at one time scratched out a ...
الصفحة 62
... claim , on the eastern side of Table Mountain , ( formerly known as the " Humbug " claim , ) 87 feet above the rim - rock of the ancient river , covered by the lava - flow known as Table Moun- tain ; elevation , 1,680 feet . Observation ...
... claim , on the eastern side of Table Mountain , ( formerly known as the " Humbug " claim , ) 87 feet above the rim - rock of the ancient river , covered by the lava - flow known as Table Moun- tain ; elevation , 1,680 feet . Observation ...
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50 feet amalgam amount antimony arrastra assay average Bannack base bullion bed-rock bullion Calaveras County California Cañon carbonate cent chemical claim coal commenced company's contains copper cost County course Creek Cupellation December deposits depth developed district ditch drift drill east El Dorado County engine erected Eureka expense extracted feet deep feet in length feet long feet wide furnace galena gangue gold Gold Hill gravel ground Gulch Hill hundred hydraulic inches incline iron labor lead ledge limestone located lode metallurgy metals miles mill miners Mining Company months nearly Nevada opened operations ounces owners placer mines pounds present Professor prospecting quantity quartz quartzite rich River rock San Francisco silver slag slate smelting smelting-works stamps stopes sulphurets sunk supply surface Table Mountain tailings thick tion tons Total tunnel Tuolumne County tuyeres Valley vein width yield