The Journal of Comparative 



Neurology and Psychology 



Founded by C. L. Herrick 



EDITORS 



C. JUDSON HERRICK, ROBERT M. YERKES, 



Denison Uni'versity Harvard Uninjersity 



ASSOCIATED WITH 



OLIVER S. STRONG, HERBERT S. JENNINGS, 



Columbia Uninjersity University of Pennsylvania 



VOLUME XVI, 1906 



EDITORIAL OFFICE 

 DENISON UNIVERSITY, GRANVILLE, OHIO 



C. JUDSON HERRICK, Managing Editor 



