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Scientific American, Vol. 38, No. 26 (1878) (1878)

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An illustration from Scientific American, Vol. 38, No. 26 (1878), 1878, leaf 0
pondent of this jour- Among the advantages claimed by the manufacturers are nal, who has recently visited the Spottsylvania (Va.) gold mines, sends us & communication calling attention to the necessity of some improved process for saving the fine gold which is covered or incased with iron. As in… … superabundance, atmosphere. Their

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