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Scientific American, Vol. 2, No. 16 (1860) (1860)

leaf 15

An illustration from Scientific American, Vol. 2, No. 16 (1860), 1860, leaf 15
e latter gentleman are exceedingly curious, and must be re- demonstration will satisfy any one that there is no loss garded as all but proving the truth of the modern theory motion of the wheel without any considerable friction. of power whatever by the crank motion. There are, which assumes that… … and pass on in the line of —If the Commissioner of conduction; but as’ it the Central Park (says a does not thus act, the in- city cotemporary) would however, important objections to this mechanical device, give strict ordersto mark the north side of trees with red ference is unavoidable, that the…

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