An introduction to the study of colour vision (1915)
Parsons, John Herbert, Sir, 1868-1957 · Cambridge [Eng.] University Press; New York, G. P. Putnam's Sons · leaf 32
± r- 0 I *■ 3 •« y 0 r ? r Kf Fig. 2. Electrical changes in the frogs eye caused by light. Plotted curves from theanalyses of three capillary electrometer records. The illumination in the case of theupper record was white light, in that of the middle red light, and in that of the lowestviolet… … 0 01 02 &3 &4 &5 06 07 08 09 10 II l« Fig. 3. Curves constructed from typical electrometer records of eyeball responses to thelight from the red, green, and violet regions of the interference spectrum of the arc light.(Gotch.) 16 COLOUR VISION and cessation of the light stimulus causes…
Color vision
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