Abstract
IN the issue of NATURE of January 27 there is a discussion of colour-blindness, with particular reference to the case of Mr. John Trattles, whose colour-vision seems to have been difficult to determine. It is not my purpose to discuss the peculiarities of this case, or the methods of examination used by the Board of Trade. As a worker in this branch of science, however, I may be permitted to say that in any case of supposed defective colour-vision there need be no appeal from the opinion of Sir William Abney, who is so justly celebrated on both sides of the Atlantic for his researches on the perception of colour.
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ALLEN, F. Colour-Blindness. Nature 83, 69–70 (1910). https://doi.org/10.1038/083069b0
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DOI: https://doi.org/10.1038/083069b0
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