Behavior Monographs 



Volume 3, Number 3. 1917 Serial Number 14 



Edited by JOHN B. WATSON 



TTie Johns Hopkins University 



An Analysis of the Learning Process 

 in the Snail, Physa gyrina Say 



ELIZABETH LOCKWOOD THOMPSON 



Contribution from the Zoological Laboratory of the University of Michigan No. 147 



Ann Arbor, Mich. 



28 FIGURES 



Published 



at Cambridge. Boston, Mass. 



HENRY HOLT & COMPANY 



34 West 33d Street, New York 



G. E. STECHERT & CO.. London. Paris and Leipzig. Foreign Agents 



