Colour-blindness: With a Comparison of Different Methods of Testing Colour-blindnessK. Paul, Trench, Trubner & Company, Limited, 1925 - 237 pages |
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Common terms and phrases
after-image appears Black+White blue and violet blue and yellow Blue Blue Blue Blue Yellow blue-green bluish pink Bradley Paper bright Brown Brown Brown Brown Green C. D. Broad C. K. Ogden called colour equations colour sensations colour-vision confusion confusion confusion confusion of blue crimson dark Grey described disc Dr Collins Edridge-Green Lantern fovea green and red green brown Green Green Green Green Greenish Green light Green Yellow Grey Grey Grey Helmholtz theory Holmgren Holmgren's wools I. A. Richards light Grey magenta neutral band normal eye pale blue pale green pale pink Psychology pure green recognized red and green Red Brown red end red green red Red Red Red red-green colour-blind reddish green retina seems seen shades of grey shortened spectrum signal-green Stilling's Tables Subject G theory violet end vision W. H. R. RIVERS wool test yellow and blue Yellow Yellow Yellow yellow-green yellowish Young-Helmholtz theory
Popular passages
Page 4 - I accidentally observed the colour of the flower of the Geranium zonale by candlelight in the autumn of 1792. The flower was pink, but it appeared to me almost an exact sky-blue by day ; in candlelight, however, it was astonishingly changed, not having then any blue in it, but being what I called red — a colour which forms a striking contrast to blue.
Page 3 - H.'s curiosity he conversed with him frequently on the subject. The account he gave was this: that he had reason to believe other persons saw something in objects which he could not see; that their language seemed to mark qualities with confidence and precision, which he could only guess at with hesitation, and frequently with error. His first suspicion of this arose when he was about four years did.
Page 5 - That part of the image which others call red, appears to me little more than a shade, or defect of light; after that the orange, yellow, and green seem one colour, which descends pretty uniformly from an intense to a rare yellow, making what I should call different shades of yellow. The difference between the green part and the blue part is very striking to my eye: they seem to be strongly contrasted. That between the blue and purple is much less so. The purple appears to be blue much darkened and...
Page 242 - A. PSYCHOLOGY GENERAL AND DESCRIPTIVE The Mind and its Place in Nature. By CD Broad, Litt.D.
Page 57 - ... but there is a defect in the perception of colour. In the first class certain rays are either not perceived at all or very imperfectly. Both these classes are represented by analogous conditions in the perception of sounds. The first class of the colour-blind is represented by those who are unable to hear very high or very low notes.
Page 242 - The Gestalt Theory and the Problem of Configuration. By Bruno Petermann. Illustrated. 17s. 6d. Invention and the Unconscious. By JM Montmasson. Preface by Dr. H. Stafford Hatfield. 17s. 6d. Neural Basis of Thought. By GG Campion and Sir G. Elliot Smith, FRS 12s. 6d. Principles of Gestalt Psychology. By Prof. K. Koffka. £1 17s. 6d. EMOTION Integrative Psychology: a Study of Unit Response. By William M. Marston, C. Daly "King, and EH Marston. £1 4s.
Page 27 - Whilst formerly a student in Edinburgh, he was known as an excellent anatomist ; now he cannot distinguish an artery from a vein by its tint. He was previously fond of sketching in colours, but since his accident he has laid it aside as a hopeless and unpleasant task. Flowers have lost more than half their beauty for him, and he still recalls the shock which he experienced on first entering his garden after his recovery, at finding that a favourite damask rose, had become in all its parts, petals,...