Color-blindness [electronic resource] : its dangers and its detection (1879)
Jeffries, B. Joy (Benjamin Joy), 1833-1915 · Boston : Houghton, Osgood ; London : Trübner · leaf 57
llest wave-length. Here must not be excluded, but rather accepted in explanation of a series of phenomena, that each spectral color excites all three kinds of fibres,— but one less, the others more strong- ly. Let us suppose, as in Fig. 1, the spectral colors in a horizontal row from red to violet… … R. O. Y G B V Fio. 1. " Simple red strongly stimulates the red perceptive, lesa the other two : sensation, red. " Simple yellow stimulates moderately the red and green perceptive, feebly the violet : sensation, yellow. " Simple green stimulates strongly the green perceptive, much less the other two…
Color Vision Defects
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.
![An illustration from Color-blindness [electronic resource] : its dangers and its detection, 1879, leaf 57](https://img.insideoutlibrary.com/img/1024/ia-b20398980-57-0.webp)
