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Scientific American, Vol. 13, No. 25 (February 27, 1858) (1858)

leaf 7

An illustration from Scientific American, Vol. 13, No. 25 (February 27, 1858), 1858, leaf 7
he patent. The moves on an axis, L, and lifting up the wires, in each of these slides is a heart shaped inventor now, with the concurrence and ap- M, raises H to the position shown in Fig. 3 groove in which the knife-edge of the beam, probation of the Commissioner, asks Congress The small spring,… … some little spikes must project. If, all these glasses tinted according to the prismatic of the knife edges may be applied to all kinds things being prepared, the handle is turned up when not in use, as it also allows J to rest spectrum, neglecting the yellow ray, of course. of balances for…

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