Color-blindness in its relation to accidents by rail and sea (1878)
Holmgren, Frithiof, 1831-1897, author · Washington : Government Printing Office · leaf 22
the normal sense of colors. The spectral colors are here found placed horizontally in the natural order, beginning with the red (E.), and finishing with the violet (V.); the three curves of excitability, namely, 1st, that of the organ perceiv¬ ing red; 2d, that of the perceptive organ of green ;… … According to these curves, the homogeneous red, from the extremity of the spectrum to beyond the orange, affects the perceptive elements of red strongly, in a much less degree those of green, and still less those of violet. From this results the sensation of red, which is transferred more and more…
Color Vision Defects · Accidents, Occupational -- prevention & control · Railroads · Ships
Internet Archive · U.S. National Library of Medicine · Public domain (published before 1931). Free to use for anything.
