This massive volume will serve as a monument to the distinguished author's pioneering work in psychopathology. With the exception of the book on The Unconscious, not one of his most successful efforts, all his principal writings are contained in it, including even the famous Dissociation of a Personality. Students of psychopathology will be grateful for having here this mass of work collected in such an accessible form, and the publication of the volume can only redound to Dr. Prince's credit. In the Preface he states in a dignified manner the grounds of his dissent from Freud's conclusions, though he gladly acknowledges the value his writings have been in calling more vigorous attention to the problems of psychopathology.