Ellison, D. J. (Daniel James) · New York : Underwood & Underwood · leaf 44
e movements, while the Derby nearer to and further apart than for normal eyes, and in this way stereoscope is so arranged that the half views on the card, by a fusion ,of the two images can be effected. As a rule the first simple screw arrangement, can be moved both in a lateral and card we place… … The Derby Stereoscope. few of which are here reproduced, in which the pictures on the two more strongly refracted than when passing through the center of them, with the result that the sides of the card are images of the pictures on the card are too widely displaced; so that made homonymous the…
Voyages and travels · Stereoscope · Voyages and travels -- Periodicals · Stereoscope -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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