Colour vision : being the Tyndall lectures delivered in 1894 at the Royal Institution (1895)
Abney, William de Wiveleslie, Sir, 1843-1920 · London : S. Low, Marston & Company · leaf 72
Colour' Vision. 5^ we call red, rays j)i‘omote great dissimilative changes of the red-green substance with comparatively slight effect on the yellow-blue substance ; hence our sensation of red. “ In that part of the spectrum which we call yellow, the rays etiect great dissimilative changes of the… … blue sulistance ; Imt their action on the red-green sulistance does not lead to an excess of either dis¬ similation or assimilation, this sulistance being neutral to them ; hence our sensation of yellow. The green I'ays, again, promote assimilation of the red-green substance, leaving the…
Color vision
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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