BY THE SAME AUTHOR 



OUTLINES OF THE 



COMPARATIVE ANATOMY 



OF VERTEBRATES 



2d Edition Revised 

 With 406 Illustrations 



Embryology is made the basis, the various struc- 

 tures being traced from the undifferentiated egg into 

 the adult condition. This renders it easy to compare 

 embryonic stages of higher vertebrates with adults of 

 the lower and to recognize resemblances and differ- 

 ences between organs in the separate classes. 



