As stated in the preface, this book is based on the presentation of physiology to college students and as such reflects much of the fundamental point of view underlying the attempt at correlation of knowledge as introduced into the curriculum at the University of Chicago. The text is interestingly and concisely written, simplified yet accurate. The subject matter embraces a wide range—biologic philosophy, physical chemistry, biology, general physiology, physiologic anatomy, human physiology and physiologic hygiene. The authors have succeeded more completely than any others with whom the reviewer is acquainted in bringing together in close integration all the physiologic relationships of the human race. The illustrations are well chosen and apparently mostly original, and the tables are original in arrangement. The indexing is complete and there is a list of supplementary reference monographs and textbooks. A bibliography of original sources is not included, probably because it would be too voluminous if one may judge from the extent, range and detail of subject matter.