THE AMERICAN JOURNAL 
ANATOMY 
EDITORIAL BOARD 
CHARLES R. BARDEEN, 
University of Wisconsin. 
HENRY H. DONALDSON, 
Wistar Institute of Anatomy. 
THOMAS DWIGHT, 
Harvard University. 
JOSEPH MARSHALL FLINT, 
University of California. 
SIMON H. GAGH, 
Cornell University. 
G. CARL HUBER, 
University of Michigan. 
GEORGE S. HUNTINGTON, 
Columbia University. 
FRANKLIN P. MALL, 
Johns Hopkins University. 
J. PLAYFAIR McMURRICH, 
University of Michigan. 
CHARLES S. MINOT, 
Harvard University. 
GEORGE A. PIERSOL, 
University of Pennsylwania. 
HENRY McH. KNOWER, SECRETARY, 
Johns Hopkins University. 
VOLUME VI 
1906-1907 
THE AMERICAN JOURNAL OF ANATOMY 
BALTIMORE, MD., U.S. A. 
