The psychopathologist reads Watson's book with somewhat mixed emotions of satisfaction and disappointment. The book is stimulating, interesting, and helpful, particularly in those portions which deal with the problems which the author himself has been actively engaged in working out and is correspondingly disappointing in certain other portions where he has chosen largely from the work of others.

In the first place his rather extensive chapters upon the nervous system seem to the reviewer rather out of place, or at least not well correlated with the rest of the book. While the author recognizes perfectly well that it is possible to deal with psychology with very little reference to the details of nervous anatomy, still these details are presented much after the plan of such a work as Ladd's Physiological