Book review in this article
The Riddle of the Sphinx. By Geza Roheim. With a preface by Ernest Jones.
A Dynamic Theory of Personality. By Kurt Lewin.
Principles of Gestalt Psychology. By K. Koffka. London: Kegan Paul, Trench, Trubner and Co. New York: Harcourt, Brace and Co., 1935.
The Subnormal Mind. By Cyril Burt.