Color study : a manual for teachers and students (1896)
Cross, Anson K. (Anson Kent), 1862-1944 · Boston : Ginn & Co. · leaf 31
on the second set and cause the sen- sation of green. The shortest waves act strongly upon the third set and cause the sensation of violet. Each set of nerve elements is acted upon powerfully by waves of one length and to a slight extent by waves of other lengths, so that the waves which cause the… … The letters R, O, Y, etc., indicate the colors red, orange, yellow, etc., and the curved lines show the action of these colors upon the different kinds of nerve elements. The diagram shows that the longest waves (the red) act powerfully upon the first set of nerves, less powerfully upon the second,…
Color -- Study and teaching
Internet Archive · New York Public Library · Public domain (published before 1931). Free to use for anything.
