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Scientific American, Vol. 43, No. 1 (July 1880) (1880)

leaf 6

An illustration from Scientific American, Vol. 43, No. 1 (July 1880), 1880, leaf 6
les are kept for refer- narrow gauges would ramify out from Leadville into every pregnating and permeating the hanging and foot walls of ence, and the other is sent to the assayer, who takes his mineral bearing gulch that was found accessible. W. " assay ton," upon which the company buys and sells.… … AUGUSTUS R, MEYER AND COMPANY'S ORE MILL. © 1880 SCIENTIFIC AMERICAN, INC

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