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Ch. 1: Gold and Silver in 1913

Ch. 1: Gold and Silver in 1913 Page of 115 Ch. 2: Platinum in 1913 Text size:minus plus Restore normal size   Mail page  Print this page
GOLD AND SILVER.                                        885
duced 63.4 per cent of the total gold and 38 per cent of the total silver in South Dakota; 34 per cent of the total silver in Texas; 35 per cent of the total gold in Oregon; 36.5 per cent of the gold in California; and 18 per cent of the gold in Alaska. Cyanidation pro­duced 90 per cent of the total gold in Wyoming in 1913; 75.3 per cent of the gold output of the Appalachian States; 70.7 per cent of the gold and 73.9 per cent of the silver in Nevada; 52.6 per cent of the gold and 62.8 per cent of the silver in New Mexico; 49.9 per cent of the gold in Arizona; and 41.7 per cent of the gold, in Colorado; 35.2 per cent of the gold and 56.6 per cent of the silver in South Dakota; and 59.7 per cent of the silver in Texas.
For details of consumption of quicksilver in the amalgamation process and of potassium and sodium cyanide in the cyanide process in several of the Western States, the reader is referred to the separate mines reports indicated in the prefatory note. Data as to con­sumption of these supplies are not yet furnished by a sufficient number of mining and milling companies to justify tabulation for the entire United States.
Ch. 1: Gold and Silver in 1913 Page of 115 Ch. 2: Platinum in 1913
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US Geol. Surv. 1913. Gemstones, Metals.
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