SOUNDS YOU CANNOT HEAR by Eric Windle

SOUNDS YOU CANNOT HEAR

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KIRKUS REVIEW

All about silent sound, the animals, birds and fish who use it and how man has adapted it for industrial and defence purposes. There are some simple experiments included and the drawings are well labeled, well placed and an integral part of the explanations of ultrasonics.

Pub Date: April 15th, 1963
Publisher: Prentice-Hall