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Researches in colour vision and the trichromatic theory (1913)
Abney, William de Wiveleslie, Sir, 1843-1920 · London : Longmans, Green · leaf 175
gular of in Powers Reading Reading Reading Aperture. Aperture of 2. Log. of of Log. Log. of in Inches. Annulus. Annulus. Annulus. 1-42 1° 57' 0" 0-94 260 •99 300 1-76 - -09 350 1° 30' 0" 0-724 1-12 245 - -48 1-59 280 1-89 335 1° 5' 0" 0-525 260 1-76 1-33 - -93 2-11 220 310 43' 43" 210 -1-52 0-35… … Fig. 53.Color Perception · Color blindness · Color vision
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.
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