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Gesell and Amatruda have brought together the known facts about the behavior of the fetus and added their own observations. From the study of prematurely born infants they have learned much about the normal growth patterns before birth and their relations to the behavior of the normal infant born at full term. There is the usual number of extremely valuable photographs of fetal and neonatal infants.
In addition to a general description of the growth of fetal behavior, chapters are devoted to breathing behavior, sleep schedules, species and individual differences and there is an important appendix on the developmental age.
Life as a growth cycle is emphasized in this volume even more than in the previous writings of the author. The changing (living) aspects of embryology and morphology are presented in such a way that these subjects have more meaning and a closer relationship to behavior than in any previous
The Embryology of Behavior: The Beginnings of the Human Mind.. Am J Dis Child. 1945;70(1):54. doi:10.1001/archpedi.1945.02020190061017