The Concept of Development was first published in 1967.In the various disciplines which make up the behavioral sciences, the concept of development plays a useful and significant role. The need has existed, however, for more unity of thought regarding the meaning of the concept, and this volume represents a long step ahead toward that goal.The book contains a series of 17 papers by as many contributors from the fields of psychology, philosophy, the natural sciences, medical science, social science, and the humanities. The chapters are arranged in five sections: Issues in the Study of Development, Biology and Growth, The Development of Human Behavior, The Concept of Development in the Humanities and Social Sciences, and Social Applications of the Developmental Concept.The contributors are Dale B. Harris, Ernest Nagel, John E. Anderson, Viktor Hamburger, J. P. Scott, T. C. Schneirla, Howard V. Meredith, Heinz Werner, Robert R. Sears, Wallace A. Russell, Norman J. DeWitt, Herbert Heaton, Robert F. Spencer, John A. Anderson, M.D., Hyman S. Lippman, M.D., John C. Kidneigh, and Willard C. Olson.The book is especially appropriate for text use or collateral reading in courses in psychology, education, sociology, or child development.