| Show TRAINING THE HUMAN EYE wonderful erful poss bill bili ties of that organ are little known unless we are color blind we all can see the seven colors in the 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 distin golsh different shades of the same color in a truly marvelous way some ot of these men and women by actual experiment can perceive 15 1 ak 0 differ ent shades of a single color said a d corn com bine bins them in wonderful harmonies their eyes are ordinary bursan eyes like those of other people but they have trained their sight until it becomes almost unbelievably perfect the r work Is priceless because they have raised an ordinary possession into lato an extraordinary endowment |