THE AMERICAN JOURNAL 



OF 



ANATOMY 



Charles R. Bardeen 



University of Wisconsin 



Henry H. Donaldson 



The Wistar Institute 



Simon H. Gage 



Cornell University 



EDITORIAL BOARD 



G. Carl Huber 



University of Michigan 



George S. Huntington 



Columbia University 

 Henry McE. Knower, 



Secretary 

 University of Cincinnati 



Franklin P. Mall 



Johns Hopkins University 



J. Playfair McMurrich 



University of Toronto 



George A. Piersol 



University of Pennsylvania 



VOLUME 21 



1917 



THE WISTAR INSTITUTE OF ANATOMY AND BIOLOGY 

 PHILADELPHIA, PA. 



