RadclifFe College Monographs 



No. 8 



The Primitive Streak 



AND 



NOTOCHORDAL CaNAL IN ChELONIA 



BY 



GEE.TRUDE CROTTY DAVENPORT, B.S. 



PREPARED UNDER THE DIRECTION OF 



EDWARD LAURENS MARK, Ph.D., LL.D. 



HBRSEY PROFESSOR QF ANATOMY IN 

 HARVARD UNIVERSITY 



WITH ELEVEN PLATES 



BOSTON, U.S. A. 

 PUBLISHED BY GINN & COMPANY 

 1896 \ 



