Show coaching the color blind the report of the committee of the ro royal al society on color vision contains some curious reading the most practically important fact brought out is that some of the tests now used for detecting defects of vision in engine drivers and seamen are inefficient I 1 colorblind color blind men are actually educated to pass the examinations a profession of what may be called color coaches having grown up to supply this want the art of cramming ming surely never had a more strange and one may add a more mischievous application than this the committee had before them one of these gentlemen but they do not give his evidence another witness however explains their method of proceeding they provide themselves with a set of colors similar to those used in testing A color is shown to the pupil pi 1 it is say eay green and he calls it red thereupon he be is instructed to answer green when a thing appears to him red the instruction is not of course so simple as this would seem to make it out the color sensations are various in different individuals vi and different tints make different impressions but the example is sufficient to show the method of color coaching now new york times |