Color study : a manual for teachers and students (1896)
Cross, Anson K. (Anson Kent), 1862-1944 · Boston : Ginn & Co. · leaf 30
COLOR STUDY. 20 Others ; colors which cannot be produced by mixture are called the primary colors, and from them all others may be produced. Light of different colors may be easiest mixed by means of the simple contrivance shown in Fig. i . … the glass. By shifting the eye or Fig. I. the papers the reflection of Kmay be made to cover the blue piece, when the color produced in the eye will be white or a neutral gray, according to the purity of the colored papers. By means of repeated experiments with other col- ors, it will be found that…
Color -- Study and teaching
Internet Archive · New York Public Library · Public domain (published before 1931). Free to use for anything.
