Even a cursory examination of the book will readily convince the reader that the author has spent a great deal of time in condensing the physiologic facts and their clinical applications into this pocket-sized volume. It is a splendid book for the student or the clinician who wishes to review physiology, for one purpose or the other. Most of the recent advances have been briefly incorporated. The reviewer failed only to note the inclusion of "pancreozymin," the hormone responsible for increasing the enzyme content of pancreatic juice, since pancreatic secretin is responsible only for an increase in the volume and total saline content of pancreatic juice. It should be noted, however, that perusal of the book demands a fairly adequate physiologic fund of information, since the author simply refers to material with which the reader presumably was at one time conversant.