Acoustic orientation

Echolocation in Animals.By E. S. Airapet'yants and A. I. Konstantinov. (Translated from Russian.) Pp. vi+309. (Academy of Sciences of the U.S.S.R. Joint Scientific Council on Physiology of Man and Animals.) (Israel Program of Scientific Translations: Jerusalem; Wiley: Chichester; January 1974.) £10.50.