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Scientific American, Vol. 51, No. 5 (1884) (1884)

leaf 8

An illustration from Scientific American, Vol. 51, No. 5 (1884), 1884, leaf 8
ons forming a group are M. Scola communicates to the Bulletin of the Fretich Pho-= parts of the subject to be reproduced; so nothing but busts resting. In order to prevent the raysfrom falling too directly could be taken, and, moreover, the lights and shades were tographic Society an easy method of… … the bromide in a useful form, but also generating an elec- let rays emitted hy the lamp, exhibited livid reflections parency), a large white screen of a thin, white fabric, upon tric current at the same time. whose coloration and intensity varied according to the ca- which rose or other colored…

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