Includes bibliographical references and index.

Preliminary Material / G. P. Baerends , C. R. Carpenter , H. Hediger , P. Palmgren , F. A. Beach , P. P. Grassé , O. Koehler , W. H. Thorpe , and N. Tinbergen -- Preening of Two Tern Species. A Study on Displacement Activities / J. J. A. van Iersel and A. C. Angela Bol -- Note on the Inheritance of Behavior Patterns for Food Selection and Cocoon Spinning in F1 Hybrids of Callosamia Promethea X C. Angulifera / Caryl P. Haskins and Edna F. Haskins -- Factors Affecting Reactions to Mysis by Newly Hatched Sepia / M. J. Wells -- Notes on the Behavior of Some North American Gulls. III. Pairing Behavior / M. Moynihan -- Genetic, Physiological and Behavioral Background of Reproduction in the Rabbit: IV. An Analysis of Maternal Behavior at Successive Parturitions / Victor H. Denenberg , Paul B. Sawin , Gabriel P. Frommer , and Sherman Ross -- Über Ermüdung und Hemmung Angeborener Ver-Haltensweisen Bei Springspinnen (Salticidae). Zugleich Ein Beitrag Zum Triebproblem. / H. Precht and G. Freytag -- The Directed Head Turning Response and Allied Movements of the Human Baby / H. F. R. Prechtl -- Reproductive Behavior of the Chorus Frog, Pseudacris Nigrita / Bernard S. Martof and Eric F. Thompson Jr. -- The Effect of Temperature Changes on the Activity of Poikilotherms / G. A. Kerkut and B. J. R. Taylor -- The False-Queen: Fourth Adjustive Response in Dequeened Honeybee Colonies / Shöichi F. Sakagami -- Some Interactions Between Flight, Protective Display, and Oviposition Behaviour in Callosamia and Rothschildia Spp. (Lepidoptera, Saturniidae) / A. D. Blest.

English

Description based on print version record.