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Scientific American, Vol. 52, No. 12 (1885) (1885)
leaf 4
werful reflectors these reproductions it always took two physicians, two and condensers, is thrown into the throat of the produced only at the moment at which the circuit is closed, it is absolutely useless, when the work is being photographers, and one electrician. The results ob- subject, and,… … according to the law of the square of the distance, a Fig. 6—GENERAL VIEW © 1885 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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