Color-vision and color blindness, a practical manual for railroad surgeons (1920)
Jennings, John Ellis · Philadelphia F.A. Davis · leaf 50
which is comparativelymore yellowish, as green Ibrms a part of it. The spectralorange is again a very saturated red, but much moreluminous. Yellow is undoubtedly a more intenselyluminous red than the spectral red, but, on the otherhand, more whitish, because a sensible portion of theother primitive… … blind, for it is composed of almost equal parts of the twoprimitive colors. The blue is an intense violet, but alittle less saturated than indigo, which is more stronglyluminous and more saturated. Violet is a little lessintense, but more saturated than normal violet. Thetints most luminous and at…
Color-blindness · Eye
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