Modern Perspectives in Child Development. In Honor of Milton J. E. Senn: Edited by Albert J. Solnit and Sally A. Provence. New York: International Universities Press, Inc., 1964. 666 pp.

Present and former colleagues and students of Professor Milton J. E. Senn honor his sixtieth birthday in this collection of papers. The table of contents traces the growth of Dr. Senn's professional interests. The first section deals with the biological aspects of child development; later ones with theoretical and clinical considerations in pediatric practice and education, child psychiatry, and child development. Dr. Senn, as Professor of Pediatrics and Psychiatry at the Yale Medical School, established the well-known Child Study Center. The editors point out, in a touching foreword, Dr. Senn's dedication not only to scientific investigation but also and especially to the education of those who care for children.

The content of this volume is so rich and comprehensive—and, incidentally, scarcely 'reviewable'—that one can think of it as a kind of selected reference work. After a first section concerning physicians and human development as a science, come biological studies, including a case study of congenital multiple enzyme deficiency, and an essay on mammalian developmental enzymology which points out the age-specific variations in activity of a number of enzymes. A study of visual behavior of newborn infants shows that ninety-five percent were able to follow a visual stimulus with their eyes. A short note on retardation of growth associated with maternal deprivation in a five-year-old boy with 'emotionally engendered hyperadrenocorticism' follows.

The editors point out that although Dr. Senn has identified himself as an eclectic in child development, he has committed himself to a psychoanalytic view of the child in the family. In subsequent papers Anna Freud defines the concept of regression in various