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Show TRAINING THE HUMAN EYE. Wonderful Possibilities of That Organ Are Little Known. Unless we are color-blind we all can see the seven colors In the rainbow. rain-bow. That is ordinary eyesight, which may by careful training be wonderfully developed. The tapestry workers of France, for instance, by continued practice, learn to distinguish distin-guish different shades of the same color in a truly marvelous way. Some of these men and women, by actual experiment, can perceive 1,500 different differ-ent shades of a single color, and combine com-bine them in wonderful harmonies. Their eyes are ordinary human eyes, like those of other people; but they have trained their sight until it becomes be-comes almost unbelievably perfect. Their work is priceless, because they have raised an ordinary possession into an extraordinary endowment. |
