Volition, therefore, following McDougall, may be defined as the supporting or re-enforcing of a desire or conation by the cooperation of an impulse excited within the system of the self-regarding sentiment. The sentiment of self-control is the master sentiment for volition and especially for resolution. It is a special development of the self-regarding sentiment. The source of the additional motive power, which in the moral effort of volition is thrown upon the side of the weaker, more ideal impulse, is ultimately to be found in that instinct of self-display or self-assertion whose affective aspect is the emotion of positive self-feeling. These remarks are given more or less verbatim. McDougall next analyzes strength of character which he differentiates from disposition and temperament which are innate. In section two, as stated previously, the author takes up for separate and more minute analysis the family (the reproductive and the parental) instincts, the instinct of pugnacity, the gregarious instinct, the instinctive bases of religion, and the instincts of acquisition and construction. Imitation, play and habit receive separate treatment in the final chapter. The reviewer can freely recommend this book as one of the best, if not the best book of this sort that has come into his hands. His personal opinion is that it is the best. McDougall presents us with an acceptable and clean-cut classification of the instincts, emotions and sentiments, he accurately defines these terms, he gives the analysis and constitution of these instincts, emotions and sentiments, and develops the motive sources of human conduct. He adopts many original and novel standpoints. He is an independent thinker. He has here presented us with a book which, because of its clearness and its frank meeting of the problems, is of the utmost value to the psychopathologist and the psychiatrist. In fact the contents of just such a work as this should be the first lesson of every worker in this field. In this way only can he really begin to understand human conduct. This work should find its place in the forefront of those books which should be read and digested by all workers in any of the social sciences. For the reviewer it has been a genuine pleasure to read and to review this book and he most heartily recommends it to the reader of these pages. MEYER SOLOMON. BOOKS RECEIVED THE THEORY OF PSYCHOANALYSIS. By C. G. Jung. Pp. 133 and Index. Nervous and Mental Diseases Monograph Series, No. 19, 1915, $1.50. PSYCHOLOGY AND PARENTHOOD. By H. Addington Bruce. Pp. IX plus 293. Dodd, Mead & Co., 1915. $1.25 net. THE INDIVIDUAL DELINQUENT. By William Healy. Pp. XV plus 830. Little, Brown & Co., 1915. $5.00 net. HUMAN MOTIVES. By J. J. Putnam. Pp. XVII plus 179. Little, Brown & Co., 1915. $1.00 net. THE JOURNAL OF ABNORMAL PSYCHOLOGY CONSTRUCTIVE DELUSIONS[*]