London: Robert Hale Limited, circa1957.
Hardcover. 8 3/4" X 5 3/4". 191pp. Bound in blue cloth over boards with spine lettered in gilt. Mild wear to bords with light rubbing to covers, corners, and edges. Sunning to spine. Dust-spotting to edges of text block. Light foxing and toning to paste-downs and endpapers. Occasional light foxing to pages. Pages are free of marks and notation. Binding is sound. With 11 black-and-white illustrations throughout. An overall solid copy of this 1950s study of chimpanzees. Good. Item #10120