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Scientific American, Vol. 75, No. 16 (October 1896) (1896)

leaf 3

An illustration from Scientific American, Vol. 75, No. 16 (October 1896), 1896, leaf 3
he number of idle and sick was This apparatus will receive an objective of any ever, is simple enough, as are the operations by which 2,033, or 0-3 per cent; 1895, 7,025, 13 per cent. power, and produces images on a 3J^ by 4)^ plate. The communication is effected. Ordinary telephones are An… … prisons and penitentiaries extended toward the rear PHOTO-MICROGRAPHIC APPARATUS. for 1895 was |19,042,472. of the camera box. With In 1885 the total wages these adjusments the oper- ator seated at the camera can manipulate the instru- termed a "transmitter" or "manipulator." The face paid by…

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