The Hunterian lectures on colour-vision and colour-blindness [electronic resource] : delivered before the Royal College of Surgeons of England on February 1st and 3rd, 1911 (1911)
Edridge-Green, F. W. (Frederick William), 1863-1953, Royal College of Surgeons of England, University College, London. Library Services · London : Kegan, Paul, Trench, Trübner & Co. · leaf 74
70 THE HUNTERIAN LECTURES 2. The Pocket Test. — This consists of nineteen cards, on nine of which are 112 single threads of wool, and 14 pieces of twisted silk, similar to those in the Classification Test. These are numbered consecutively, with the exception of the first thread of the first four… … Fig. 6. four cards, I to IV, form the tests; they are Orange, Violet, Red, and Blue-green. There are also cards on which red, orange, green, blue, violet and purple, and grey, respectively are to be found. There are also two special cards marked With- out Red " and two special cards marked With-…
Ophthalmology · Eye · Color · Color blindness · Color vision · Color Vision Defects · Color Perception
Internet Archive · UCL Library Services, University College London (UCL) · Public domain (published before 1931). Free to use for anything.
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