Reports Upon the Mineral Resources of the United StatesU.S. Government Printing Office, 1867 - 360 Seiten First in a series of reports by Browne (later continued by Rossiter Raymond). This is followed by a reprint of Edmund Randolph's 'Address on the history of California, from the discovery of the country to the year 1849' (p. 268-504, first published in 1860) and John W. Dwinelle's 'Address on the acquisition of California by the United States' (p. 306-321, first published in 1866. Also reprinted in this volume are James W. Taylor's report upon gold and silver mining East of the Rocky Mountains (p. 323-350) and the Dept. of the Interior's 'Circular in relation to mining claims' (p. 351-357), both of which were omitted in the earlier 320 p. issue. |
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Seite 16
... inches high , inclining outwards at an angle of thirty or forty degrees . We frequently see and hear the phrase " golden sands , " as if the gold were contained in loose sand ; but usually it is found in a tough clay , which envelops ...
... inches high , inclining outwards at an angle of thirty or forty degrees . We frequently see and hear the phrase " golden sands , " as if the gold were contained in loose sand ; but usually it is found in a tough clay , which envelops ...
Seite 19
... inches deep , fifteen inches wide at the head and thirty at the foot . A riddle of sheet iron punched with holes half an inch in diameter forms the bottom of the tom at the lower end , so placed that all the water and their mud shall ...
... inches deep , fifteen inches wide at the head and thirty at the foot . A riddle of sheet iron punched with holes half an inch in diameter forms the bottom of the tom at the lower end , so placed that all the water and their mud shall ...
Seite 23
... inch pipe , under a pressure of two hundred feet perpendicular , has tremendous force , and the everlasting hills themselves crumble down before it as if they were but piles of cloud blown away by a breath of wind or dissipated by a ...
... inch pipe , under a pressure of two hundred feet perpendicular , has tremendous force , and the everlasting hills themselves crumble down before it as if they were but piles of cloud blown away by a breath of wind or dissipated by a ...
Seite 29
... inches deep . Five hundred or a thousand pounds of ore are put in with salt , iron pyrites , quicksilver , and enough water to make a thin mud . A muller revolves on the bottom of the pan , and serves to grind the matter , which is not ...
... inches deep . Five hundred or a thousand pounds of ore are put in with salt , iron pyrites , quicksilver , and enough water to make a thin mud . A muller revolves on the bottom of the pan , and serves to grind the matter , which is not ...
Seite 41
... inches , while in one case there is a vein noted which is twenty - five feet in width and another fifteen feet . The average width of all the veins examined would appear to be about three feet . The " country rock , " or the rock in ...
... inches , while in one case there is a vein noted which is twenty - five feet in width and another fifteen feet . The average width of all the veins examined would appear to be about three feet . The " country rock , " or the rock in ...
Inhalt
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69 | |
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80 | |
83 | |
98 | |
120 | |
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132 | |
135 | |
185 | |
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226 | |
323 | |
351 | |
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Amador county amalgamation amount Arizona auriferous borax bullion Calaveras county California cent claimants coal Comstock lode containing copper copper mines Copperopolis cost creek crystals deposits depth discovered discovery dollars erected expenses exploration extracted fifty furnaces geological gold and silver Gould & Curry Grass valley Hill Humboldt hundred feet inches Indians iron labor lake laws ledge located Mariposa county mass metal Mexican Mexico miles mills mining district mission Monterey months mountains nearly Nevada county obtained Ophir Oregon owners pans parties persons placer mining portion possession pounds present presidio profit pyrites quantity quartz quartz mining quicksilver record Reese River rich rock running Sacramento salt San Francisco settlers shaft Sierra Nevada silver mines slate specimens springs sulphur sulphurets surface survey Territory thousand tion tons tunnel Tuolumne county United vein Virginia City Washoe width