Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311 pages |
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Page 1
... light . Kepler was the first to discover the compound nature of solar light , but comparatively little attention was paid to his observations . The experiments of Newton attracted more notice , and his theories were accepted by the ...
... light . Kepler was the first to discover the compound nature of solar light , but comparatively little attention was paid to his observations . The experiments of Newton attracted more notice , and his theories were accepted by the ...
Page 2
... light from that which it appeared to him by daylight . The flower was pink , and appeared to him sky- blue by day , and without a trace of blue by candle - light . His friends assured him that the colour of the flower was not materially ...
... light from that which it appeared to him by daylight . The flower was pink , and appeared to him sky- blue by day , and without a trace of blue by candle - light . His friends assured him that the colour of the flower was not materially ...
Page 4
... light which give rise to the sensation of colour , are unalterable , and it is the suppression or admixture of ... light . A beam of sun- light , examined in this way , gives a continuous spectrum ; but if we take precautions to prevent ...
... light which give rise to the sensation of colour , are unalterable , and it is the suppression or admixture of ... light . A beam of sun- light , examined in this way , gives a continuous spectrum ; but if we take precautions to prevent ...
Page 5
... light . In the former case the waves are waves of condensation and rarefaction ; that is to say , the direction of the motion has the same direction as the sound . In the case of light , the wave motion is perpendicular to the path of ...
... light . In the former case the waves are waves of condensation and rarefaction ; that is to say , the direction of the motion has the same direction as the sound . In the case of light , the wave motion is perpendicular to the path of ...
Page 6
... light which give rise to the sensation of red are also less refrangible than the remainder , the refrangibility increasing up to the violet . From this it will be seen that a spectrum consists of an enormous number of rays of light ...
... light which give rise to the sensation of red are also less refrangible than the remainder , the refrangibility increasing up to the violet . From this it will be seen that a spectrum consists of an enormous number of rays of light ...
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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