L^ 



THE 



Psychological Review 



EDITED BY 

 J. McKEEN CATTELL J. MARK BALDWIN 



AND 



Columbia University Princeton University 



with the co-operation of 



ALFRED BINET, £cole des Hautes-£tudes, Paris; JOHN DEWEY, University of 

 Chicago; H. H. DONALDSON, University of Chicago; G. S. FULLERTON, 

 University of Pennsylvania; JOSEPH JASTROW, University of Wis- 

 consin; G. T. LADD, Yale University; HUGO MONSTERBERG, 

 Harvard University; M. ALLEN STARR, College of Phy- 

 sicians and Surgeons, New York; CARL STUMPF, Uni- 

 versity, Berlin; JAMES SULLY, University 

 College, London. 



Series of Monograph Supplements, 



Vol. II., No. 4 (Whole No. 8), June, 1898. 



Animal Intelligence 



An Experimental Study of the Associative Processes in Animals 1 

 EDWARD L. THORNDIKE A.M., 



Unroersity Fellow in Psycliology, Columbia University. 



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