Silver and Gold: An Account of the Mining and Metallurgical Industries of the United States |
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Halaman 16
... operations in years past , says failures have often been attributed to the high rates of labor , but a critical investigation would show that it was to be attributed more frequently to other causes , which he thus enumerates : 1st . Too ...
... operations in years past , says failures have often been attributed to the high rates of labor , but a critical investigation would show that it was to be attributed more frequently to other causes , which he thus enumerates : 1st . Too ...
Halaman 21
... operations upon them . Much of this capital has been drawn from abroad , the English public having been very active ... operations and improvements . - The great extent and the costly character of many of the projects undertaken ...
... operations upon them . Much of this capital has been drawn from abroad , the English public having been very active ... operations and improvements . - The great extent and the costly character of many of the projects undertaken ...
Halaman 22
... operations and improvements are now planned and carried forward on a large scale , it having become apparent that by this method great gains and economies could be effected . In fact , the altered con- ditions under which the business ...
... operations and improvements are now planned and carried forward on a large scale , it having become apparent that by this method great gains and economies could be effected . In fact , the altered con- ditions under which the business ...
Halaman 24
... operations , the character of the property secured , and the objects proposed to be accomplished by this company . " They have , " says the Herald , " located , by right of discovery , obtained by purchase and grant , and taken ...
... operations , the character of the property secured , and the objects proposed to be accomplished by this company . " They have , " says the Herald , " located , by right of discovery , obtained by purchase and grant , and taken ...
Halaman 25
... operations upon them . A large class of mining claims , too , that had for years struggled along , barely able to sustain themselves , are now , with cheapened material , more reliable labor , and improved modes of working , yielding ...
... operations upon them . A large class of mining claims , too , that had for years struggled along , barely able to sustain themselves , are now , with cheapened material , more reliable labor , and improved modes of working , yielding ...
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50 feet amalgam amount antimony arrastra assay average Bannack base bullion bed-rock bullion Calaveras County California CaƱon 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