Book reviews

Aggression: a Social Psychological Analysis. By Leonard Berkowitz. London: McGraw-Hill Book Co. Inc. 1962. Pp. xv + 361. 62s.

Cumulative Record. By B. F. Skinner. London: Metbuen. 1962. Pp. × + 426. 50s.

Psychology Through Experiment. Edited by G. Humphrey. London: Methuen. 1963. Pp. 307. 30s.

Behaviour and Awareness. Edited by C. W. Eriksen. Durham, N.C.: Duke University Press and London: Cambridge University Press. 1962. Pp. vi + 158. 28s.

Motivation and Emotion. By Paul Thomas Young. New York and London: Wiley. 1961. Pp. xxiv + 648. 86s.

The Assessment of Pain in Man and Animals. Edited by C. A. Keele and Robert Smith. London. U.F.A.W. (The Universities Federation for Animal Welfare). Distributing agents: E. & S. Livingstone. 1963. Pp. xi + 323. 30s.

A Study in Behaviour. By S. A. Barnett. London: Methuen. 1963. Pp. xvi + 288. 45s.