296 THE STUDY OF ANIMAL LIFE CHAP, xm 



like savage men, though with more circumscribed limits 

 of progress than either. 



CHIEF ORDERS OF MAMMALS 



MON 



UN\GULATES 



LEM 



RO\ DENTS 

 CETACEANS -<- 



KEYS 



\ 

 CARNI/VORES 



URS 



o 



w 



IN/SECTIVORES 



SIRENIA 



EDENTATA 



MARSUPIALS 



MONOTREMES 



