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June 1963

Echoes of Bats and Men

Arch Intern Med. 1963;111(6):843. doi:10.1001/archinte.1963.03620300163033

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For those who begrudge an hour wasted at an airport or while in transit, the paper-bounds have been a revelation. One can read classics conveniently. Griffin, Professor of Zoology at Harvard, writes lucidly and excitingly of the uses of sounds by animals and men to locate food, enemies, and obstacles, a field where physics and physiology merge, a field of necessity to the military forces, to peacetime employment, and to the blind for whom it may mean "sound vision."

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