DICTIONARY 
OF 
PHILOSOPHY AND PSYCHOLOGY 
INCLUDING 
MANY OF THE PRINCIPAL CONCEPTIONS OF ETHICS, LOGIC, AESTHETICS, 
PHILOSOPHY OF RELIGION, MENTAL PATHOLOGY, ANTHROPOLOGY, 
BIOLOGY, NEUROLOGY, PHYSIOLOGY, ECONOMICS, POLITICAL 
AND SOCIAL PHILOSOPHY, PHILOLOGY, PHYSICAL 
SCIENCE, AND EDUCATION 
AND GIVING 
A TERMINOLOGY IN ENGLISH, FRENCH, GERMAN, AND ITALIAN 
WRITTEN BY MANY HANDS 
AND EDITED BY 
JAMES MARK BALDWIN 
Ph.D. (Princeton), Hon. D.Sc. (Oxon.), Hon. LL.D. (Glasgow) 
STUART PROFESSOR IN PRINCETON UNIVERSITY 
WITH THE CO-OPERATION AND ASSISTANCE OF AN INTERNATIONAL 
BOARD OF CONSULTING EDITORS 
IN THREE VOLUMES 
WITH ILLUSTRATIONS AND EXTENSIVE BIBLIOGRAPHIES 
VOL. I 
THE MACMILLAN COMPANY 
Honöcm 
MACMILLAN AND CO., Limited 
1901