ABSTRACT
IN our fifteenth study we asked how the living body works, and how it keeps agoing from day to day. The answer to that question is ordinary Physiology. Now let us inquire into the doings and ongoings of animals, how they direct their activities towards particular ends. Let us think of them as creatures that do things; let us ask whether they have feelings, thoughts, and wishes as we have. This is the study of Behaviour or Psychology.
