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Scientific American, Vol. 36, No. 21 (1877) (1877)

leaf 3

An illustration from Scientific American, Vol. 36, No. 21 (1877), 1877, leaf 3
ut skilled labor and in a short time. The machine is supported by four studs, as treasures, and other bodies from the water. His ingenious shown; and motion is imparted to the mill or cutter by a shaft on which slides a suitable gear, meshing into one on the tool carrier or crosshead, the latter… … means of finely divided metallic iron that pumping engine then forces air into the has been reduced by hydrogen. The dis- cylinders; and when these are filled, their solved iron must afterwards be oxidized weight, plus that of the ship, is less than to a ferric salt. Spfeiss cobalt can be de- that…

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