Text-book of general physics, for the use of colleges and scientific schools (1899)
Hastings, Charles Sheldon · Boston: Ginn & company · leaf 735
ll wavesbeyond this produce a sen-sation of green of dimin-ishing intensity and increasing saturation. A feeble violetwould hardly be distinguishable from black. Abnormal color vision of analogous peculiarity would obvi-ously be produced if one set of nerves, instead of being en-tirely lacking, was… … DETECTION OF COLOE BLIXDXESS. 725 621. Detection of Color Blindness. — Holmgrens method oftesting for color blindness is as follows: A large varietv ofcolored worsteds, including red. orange, yellow, yellow-green,green, blue-green, blue, violet, purple, pink, brown, and gray,with several variations…
Physics
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