Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311 pages |
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Page 5
... become too feeble to influence the molecules of water ad- jacent to them . It will be noticed that there is no real transmission of matter ; thus , if there be a stick or leaf in the path of the wave , it will be raised with the wave ...
... become too feeble to influence the molecules of water ad- jacent to them . It will be noticed that there is no real transmission of matter ; thus , if there be a stick or leaf in the path of the wave , it will be raised with the wave ...
Page 9
... reinforced , and the light becomes brighter . When the crest of one light wave corresponds to the trough of another of similar wave- length , both are annihilated , and darkness is produced THE PHYSICAL BASIS OF COLOUR . 9.
... reinforced , and the light becomes brighter . When the crest of one light wave corresponds to the trough of another of similar wave- length , both are annihilated , and darkness is produced THE PHYSICAL BASIS OF COLOUR . 9.
Page 44
... become yellow with age : all objects to a person of this kind will appear yellower than they would to a person with a normal lens . These details will be discussed fully in the chapter on the Qualitative and Quantitative Estima- tion of ...
... become yellow with age : all objects to a person of this kind will appear yellower than they would to a person with a normal lens . These details will be discussed fully in the chapter on the Qualitative and Quantitative Estima- tion of ...
Page 48
... becomes evident as a sensation of light . It is difficult to understand how it is that the light waves do not influence the rods and cones in their first passage through the retina . In the outer limbs of the rods a purple substance is ...
... becomes evident as a sensation of light . It is difficult to understand how it is that the light waves do not influence the rods and cones in their first passage through the retina . In the outer limbs of the rods a purple substance is ...
Page 50
... becomes yellow , then white , under the action of light . 6. That it is soluble in a solution of the bile salts . The purple fluid thus obtained reacts to light in the same way as normal visual purple . 7. That after being bleached it ...
... becomes yellow , then white , under the action of light . 6. That it is soluble in a solution of the bile salts . The purple fluid thus obtained reacts to light in the same way as normal visual purple . 7. That after being bleached it ...
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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