THE JOURNAL 
OF 
COMPARATIVE NEUROLOGY 
EDITORIAL BOARD 
Henry H. DonALDSON ApoutF MEYER 
The Wistar Institute Johns Hopkins University 
J. B. JoHNSTON OLIvER S. STRONG 
University of Minnesota Columbia University 
C. Jupson HERRICK, University of Chicago 
Managing Editor 
VOLUME 22 
1912 
PHILADELPHIA, PA. 
THE WISTAR INSTITUTE OF ANATOMY AND BIOLOGY 
