FOURTH EXAMPLE : COMPARATIVE PSYCHOLOGY. BIBLIOGRAPHY
Psychology, which has progressively disengaged itself from metaphysics, is now indeed constituted as an objective study of the facts of the mind. It has gone beyond mere observation in making experiments, and by means of statistics and measurements has introduced mathematical precision into the statement of certain of its results. By confrontation of cases of the pathological and the normal it has become skilled in dissociating functions which, in combination, make up the life of the mind, and, at all events in summary fashion, it determines what their action is in a state of health. We should never dream of denying that such researches justify great hopes.