The Rat in Laboratory Investigation

eminent urologist who was deeply interested in the medical aspect of sex. It is dedicated "to troubled young people and their parents." It is by no means written for a lay audience, however, and should interest physicians as a fine exposition of sound and forward thinking in this field. The essential thesis of the work is to look at sex frankly and clearly so that it will appear in its proper proportion to a generation which seems to be having hesitancy and difficulty in accepting maturity and its responsibilities. The material was originally presented in the form of editorials and this character fortunately has been preserved in the format of the book, an arrangement which adds greatly to its readability. It is edited by the author's wife, Maud H. Young, who aided him in the preparation of the material.