Of all the sense organs, the eye immensely complicated as it isis probably the best understood. Since the German biologist Franz Boll discovered that a chemical change takes place when light enters the eye, scientists have worked out a fairly complete map of the mechanics of vision. Last week Stockholm's Royal Caroline Institute, custodian of the Nobel Prize in medicine, jointly awarded the 1967 prize to three of the most important eye cartographers of the present generation: the U.S.'s George Wald and Haldan Keffer Hartline and Sweden's Ragnar Granit.
Biologist Wald, 60, whose abilities as a lecturer...
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