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Usaully Problem At The Crusher Plant In Gold Mining

A Scientific Problem. That pioneer of the penny press, The New York Sun, maintains its issue at one cent per copy and with undiminished size, in spite of the high price of paper and mateials. ... 37,l85.Annalgan-lator for Gold and Silver.Thomas Varney, San Fi-ancisco, Cal. I claim, first, The employment or use of a rotating usnithem-, F, pso .

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