Stories of inventors and discoverers in science and the useful arts. A book for old and young (1860)
Timbs, John, 1801-1875 · New York, Harper & Brothers · leaf 451
be placed side by sidein the Stereoscope, they will not offer any unusual ap-pearance. But if there be the slightest, although inap-preciable, difference—as, for instance, in the interval sep-arating the same words—the difference will be made evi-dent in the stereoscope by the elevation into relief…
Inventions · Inventors
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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