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Scientific American, Vol. 13, No. 41 (1858) (1858)

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An illustration from Scientific American, Vol. 13, No. 41 (1858), 1858, leaf 0
JUNE 19, 1858. NO. 41. VOL. XIII. chine. This frame is composed of two parallel THE metal bars connected at one end by a bolt … frame is passed on the saw, and the bed is 18,000, leagues square; it is occupied, to be firmly clamped to the saw by turning the which is allowed to oscillate upon journals. sure, mostly by the Caspian Sea, but it also The accompanying engraving represents a lever, J, so that it will be pressed…

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