THE AMERICAN JOURNAL 
OF 
ANATOMY 
MANAGING EDITOR 
CHARLES R. STOCKARD 
Cornell University Medical School 
ASSOCIATE EDITORS 
CLARENCE M. JAcKSON Haroup D. SENIOR 
University of Minnesota New York University 
Henry Mck. Knowrr GEoRGE L. STREETER 
University of Cincinnati Carnegie Institution 
JANUARY, 1922—JULY, 1922 
THE WISTAR INSTITUTE OF ANATOMY AND BIOLOGY 
PHILADELPHIA, PA. 
