xiv, 240 p. illus. 24 cm. Includes Illustrations. The proceedings of a symposium held at the Zoological Society of London on 25 and 26 May, 1966. Includes bibliographies. Help support independent bookstores! Proceeds of this sale benefit the Friends of the Evergreen Library (FOEL) and The Evergreen State College (TESC) in Olympia, WA. ~academic library markings/stamps, tight binding, light to moderate shelf wear to covers/corners.