An Introduction 



to 



Vertebrate Embryology 



' 



Based on the Study of the Frog, 

 Chick, and Mammal 



C- By 

 Albert Woi^Reese, Ph.D. (Johns Hopkins) 



PiJfkssor of Zoology in West Virginia University 



Second Edition, Revised and Enlarged 



With 1 1 8 Illustrations 



G. P. Putnam's Sons 



New York and London 

 fmicfcerbocfcer press 

 1909 



