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 261
is displaced towards the red end of the 1 Proc. Boy. Soc. Lond. May 28, 1914. « Ibid. A. LXXXIX, 232, 1913. 16—2 244 COLOUR VISION spectrum. There is good reason to think that cases of the same natureare not uncommon, but in the cases hitherto examined the shift hasalways affected the green… … ^ 22 24 26 ze 50 32 M 36 58 40 42 44464650525456566062 ^4^0 5/000 5500 6,000 6i500 zoooA.U Fig. 73. Normal sensation curves in terms of luminosity. (Abney and Watson.)
Color vision
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