THE ANIMAL BEHAVIOR SERIES. VOLUME II 



THE ANIMAL MIND 



A Text-book of Comparative 

 Psychology 



BY 



MARGARET FLOY WASHBURN, PH.D. 



PROFESSOR OF PSYCHOLOGY IN VASSAR 

 COLLEGE 



SECOND EDITION 



Wefo gorfc 



THE MACMILLAN COMPANY 

 1917 



A U rights rtstrved 



