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Scientific American, Vol. 14, No. 6 (1866) (1866)

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An illustration from Scientific American, Vol. 14, No. 6 (1866), 1866, leaf 0
en work at must be moderate, or time taken for ex dark for several days. It is not sufficiently sensitive exposure to the heat and light of the sun, and less- rest. This machine is intended to apply to all ordi- ened in darkness. When tea was taken an increase to be employed in the camera, but can… … ward. It can easily be held in gear might be expected from the differ- MARVIN’S HOISTING MACHINE. by one hand, and raises goods very ence of the sensitive surfaces, the i piebtes are very good; and photography in natu- rapidly. When the rope is released the weight im- bread and milk also caused a…

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