In 1922 Professor Dunlap published his “Elements of Scientific Psychology.” The present work is partly a revision, partly an exposition of what the author sees from the heights to which he has moved in the succeeding fifteen years. It is clearly and interestingly written and covers all departments of psychology, though many of them necessarily briefly. But it is marred in many places by Professor Dunlap's animus against those with whom he does not agree, especially the psychoanalysts. One realizes, of course, that it is often necessary to point out what impresses an author as error in order to clarify his own position; but surely it is going a bit too far to state categorically that patients and students who