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PEP | Article - The Psychology of Early Growth. Including Norms of Infant Behavior and a Method of Genetic Analysis: By Arnold Gesell, Ph.D., M.D., Sc.D., and Helen Thompson, Ph.D., assisted by Catherine Strunk Amatruda, M.D. New York: The Macmillan Co., 1938. 225 pp. - Malcove, Lillian