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Scientific American, Vol. 54, No. 17 (April 1886) (1886)
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esigned for this work. Each new method of treatment, because it had a two-fold are commenced by first shoveling the top dirt into the of them has two 11 inch discharge pipes; the capacity bearing—on the health of the workmen and on the box, then hoisting and swinging the boom at the same is 600… … NOVEL MINING MACHINERY IN OPERATION AT THE ARROYO SECO MINE. CALIFORNIA. © 1886 SCIENTIFIC AMERICAN, INCPatented · Patents · Apparatus · Rollers · Munn · Scientific American · Wheel shaping · Potash solution · American supplement · Express money · Address munn · Wood working · Cubic feet · Power loom · Liquid fuel
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