Colour-blindness and Colour-perceptionK. Paul, Trench, Trübner & Company, Limited, 1891 - 311 pages |
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Page
... Colour - blindness " has in- ( ( duced me to write this book for the benefit of those who may have to test ... blind persons and of all the recorded cases to which I could obtain access . I should be glad to hear from any colour- blind person ...
... Colour - blindness " has in- ( ( duced me to write this book for the benefit of those who may have to test ... blind persons and of all the recorded cases to which I could obtain access . I should be glad to hear from any colour- blind person ...
Page 14
... blind what sight is ; he is unable to appreciate what such a ... person will be the psycho - physical series for that person . A psycho- . physical series is therefore a physical series as it 14 COLOUR - BLINDNESS AND COLOUR - PERCEPTION .
... blind what sight is ; he is unable to appreciate what such a ... person will be the psycho - physical series for that person . A psycho- . physical series is therefore a physical series as it 14 COLOUR - BLINDNESS AND COLOUR - PERCEPTION .
Page 15
... person would . We then find that people differ very much in the number of units which they put together as exactly alike . So we are able to make definite classes , varying from those who are able to perceive very minute differences of ...
... person would . We then find that people differ very much in the number of units which they put together as exactly alike . So we are able to make definite classes , varying from those who are able to perceive very minute differences of ...
Page 34
... person is able to see . is evident that if the perception of difference were very defective , the spectrum would appear colourless and simply brighter or darker , according to the intensity of the light ; a person of this kind would be ...
... person is able to see . is evident that if the perception of difference were very defective , the spectrum would appear colourless and simply brighter or darker , according to the intensity of the light ; a person of this kind would be ...
Page 41
... blind are able to recognize colours and correctly name them . As an example of this method of looking at the subject , let us represent the two - unit by the two adjacent units , blue and green . It is obvious that a normal - sighted person ...
... blind are able to recognize colours and correctly name them . As an example of this method of looking at the subject , let us represent the two - unit by the two adjacent units , blue and green . It is obvious that a normal - sighted person ...
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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