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Color-blindness : its dangers and its detection (1880)

Jeffries, B. Joy (Benjamin Joy), 1833-1915 · Boston : Houghton, Osgood and Company · leaf 2

An illustration from Color-blindness : its dangers and its detection, 1880, leaf 2
THE LIBRARY OF THE UNIVERSITY OF CALIFORNIA LOS ANGELES GIFT of iltcs. Clifford B. Walker

Color Vision Defects

Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.

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