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Collection: Directories and Documents > Pamphlets

Half an Hour in El Dorado (PH 1-12)(1940s-50s) (35 pages)

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Another early improvement was the rocker, or miner's cradle (No.11) which enabled the placer miner to wash many times as much gold gravel as could be handled in a pan. Another historic photograph shows a rocker in use (No.12). enough for the more impatient Argonauts. A model (No. 13) carved for Wells Fargo Bank by A. O. Dinsdale shows miners using a Long Tom, or sluice box. The same operation is shown again in photograph No. 14. Note the picturesque costumes of the Chinese . . . thousands of whom joined the Gold Rush as traders, laborers, and independent miners. NO. 16 However, not even the Long Tom was the final word in placer mining. Its place was taken by the iron monitor (No, 15), used in hydraulic