The practicing pediatrician, as well as the man in teaching and research, will find this an excellent book. In studying the book carefully, the reader not only will learn what is new in the field of pediatrics, but will also be able to apply this knowledge in his daily practice. The subjects are well selected for their timeliness and importance and are discussed with sufficient thoroughness to give more than superficial information. The presentation of the subjects of most chapters offers stimulation and guidance for further research, and the authors are outstanding authorities in their fields.
The chapter on the "Etiology of Congenital Malformations" presents for the pediatrician a discussion of a new field—new at least for this specialty. Although it is highly interesting reading, its detailed treatment seems to have little value to the practicing pediatrician. Its implication of future usefulness in preventive medicine probably applies rather to the