THE JOURNAL 



OF 



COMPARATIVE NEUROLOGY 

 AND PSYCHOLOGY 



EDITORIAL BOARD 



Henrt H. Donaldson 

 The Wistar Institute 



C. JuDsoN Hekrick 



University of Chicago 



Herbert S. Jennings 



Johns Hopkins University 



J. B. Johnston 



University of Minnesota 



Adolph Meter 



Pathological Institute, New York 



Oliver S. Strong 



Columbia University 



John B. Watson 



Johns Hopkins University 



Robert M. Yerkes 



Harvard University 



VOLUME XIX 

 1909 



PHILADELPHIA, PA. 

 THE WISTAR INSTITUTE OF ANATOMY AND BIOLOGY 



