Purposive Behavior in Animals and Men

as to where between the two poles of behaviorism and structuralism they will finally see their science find its place. It has become ever more evident that psychology after all is one; that structuralism has long since been at its most structuralistic, and that behaviorism, born more than full-grown, has been rapidly progressing from senescence toward a more normal adolescence. Thia is hopeful, and one is tempted to try to predict psychologists' ultimate meeting-point relative to these extremes by the rate at which they are approaching each other from them. Hence it is interesting to find Dr. Tolman intimating that in his own case he has arrived at his present position from an original point of departure very near the South Pole of "molecular behaviorism." The doctrine of "purposive behaviorism" is developed in this book by an alternation, first, of analysis and definition, and second, of presentation of the experimental evidence indicating the existence of the objects of the