Color study : a manual for teachers and students (1895)
Cross, Anson K. (Anson Kent), 1862-1944 · Boston : Ginn & company · leaf 29
that of violet, andbetween these extremes is a series of waves of intermediate lengths,which correspond to the colors of the rainbow found between redand violet; namely, orange, yellow, green, and blue. Other colorsare given by a mixture of waves of different lengths, and the sensa-tion of white is… … others; colors which cannot be produced by mixture are called theprimary 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.A represents a board having adead black surface, with uprights,S, in the…
Color
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