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 189
COLOUR VISION 174 method, which agree with those already mentioned. We may more conveniently discuss his results at a later stage (Part III). The spectrum as seen by the dark-adapted eye. Tschermak1 has stated that the process of adaptation varies according to the type of … 670650 625 605 590 575 555 535 520 505 490 B C D E F Fig. 48. Photopic luminosity curves (intensity H) of trichromats and dichromats. Abscissae, wave-lengths of the prismatic spectrum of gaslight; ordinates, arbitrary scale. (Konig.) colour blindness, being normal in deuteranopes and much below…
Color vision
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from Wedding's Basic Bessemer Process. Translated [from the supplement to the author's Darstellung des schmiedbaren Eisens” entitled, “Basische Bessemer oder Thomas Process”] ... by W. B. Phillips ... and E. Prochaska ... With a supplementary chapter on dephosphorization in the basic open-hearth furnace, by E. Prochaska (1891)](https://img.insideoutlibrary.com/img/200/bl-bl_003874923_0-162-1.webp)
