This is one of the few books in English on this important topic, and one of the most modern works on it in any language. Most previous writings antedate the fundamental discoveries of modern clinical psychology. Mr. Menzies, who has an extensive knowledge of the recent work accomplished in psychology, has here dealt with the various problems of onanism from this point of view. The book is written, not for the expert, but for teachers, parents, clergymen and others, who may have to deal with these difficult matters in concrete cases. The other conclusions are rather on the conservative side, but he makes a strong plea for a more sympathetic consideration of the difficulties