Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311 pages |
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Page 35
... red and orange . What are the two colours seen when the whole of the gray ... green . The next step will be the formation of another point of difference ... red , green , and violet , of the spectrum . It will be noticed in a psycho ...
... red and orange . What are the two colours seen when the whole of the gray ... green . The next step will be the formation of another point of difference ... red , green , and violet , of the spectrum . It will be noticed in a psycho ...
Page 36
... red , green , and violet , would object to red and violet being the two points of greatest difference . It is evident enough , in the series of discs , that the largest disc presents the greatest contrast to the smallest one ; and , in ...
... red , green , and violet , would object to red and violet being the two points of greatest difference . It is evident enough , in the series of discs , that the largest disc presents the greatest contrast to the smallest one ; and , in ...
Page 40
... red , green , and violet . Red combined with green forms yellow ; violet combined with green forms blue , so it is evident that these colours occupy the positions which I theoretically allotted to them . The following will give the ...
... red , green , and violet . Red combined with green forms yellow ; violet combined with green forms blue , so it is evident that these colours occupy the positions which I theoretically allotted to them . The following will give the ...
Page 41
... green . It is obvious that a normal - sighted person could distinguish different colours , even if only two were visible to him . Then colours might be named in the following way . A dark but pure green would represent red ; a very bright ...
... green . It is obvious that a normal - sighted person could distinguish different colours , even if only two were visible to him . Then colours might be named in the following way . A dark but pure green would represent red ; a very bright ...
Page 45
Frederick William Edridge-Green. green and the green - violet junctions are situated at points occupying positions nearer the violet end of the spectrum than the corresponding junctions of those with a spectrum of normal length . The red - ...
Frederick William Edridge-Green. green and the green - violet junctions are situated at points occupying positions nearer the violet end of the spectrum than the corresponding junctions of those with a spectrum of normal length . The red - ...
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Common terms and phrases
absolute psycho-physical units after-image ANNA BLACKWELL blue-green bright brown candidate centre colour-blind person colour-perception coloured glass complementary colours contrast correctly crimson dark daylight defect definite colours Demy 8vo distinguish English Essays examination Fcap Fifth Edition four-unit Fourth Edition Frontispiece gaslight gray greenish Holmgren's Illustrations India junction large number LL.B LL.D luminosity Maps match mistakes modified unit neutral band neutral glasses normal-sighted person obtained olive-green orange painted physical series physical units Pilotage pink Plates Pocket Test points of difference Portrait Post 8vo Prof psycho-physical perception psycho-physical series psycho-physical units pure green purple red and green red end red rays retina rose Royal 8vo Sanskrit scotoma Second Edition seen shade simultaneous contrast Small crown 8vo spectroscope spectrum standard red test for colour-blindness theory Third Edition three-unit tion Translated Trinity House two-unit colour-blind violet violet end visual purple vols wools yellow and blue yellow-brown yellow-green Young-Helmholtz theory