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VITALISM : A BRIEF HISTORICAL AND CRITICAL REVIEW. 233 ischen und Pathologischen Chemie. He proclaims that we do not see life, but only its results. There is something which to his mind is beyond the mechanically explained phenomena of respiration, circulation, nutrition, locomotion and development, a something which " vitalism will assuredly reveal in the face of the failure of chemistry and physics". It is Bunge's opinion that psychology alone can explain physiology. Study of the internal world must precede that of the external. This and this only is the path, he declares, by which the one riddle of life, Activity, may be solved. (To be continued.)
