based on the principle of Cephalization.—Herbivores. 171 
Acerotheres (whether females or not) are among the earliest 
geological representatives of the Rhinoceros group, 
The Hyracids are degradational forms, having the snout not 
prolonged and not horned, yet having it terminate in a flat naked 
space with the nostrils on either side, also having the tail reduced 
to a mere tubercle, and having the small size, as well as some 
of the habits, of a Rodent of the Hare family. It is good at 
digging. This abbreviation before and behind in the Hyrax 
may be an example under the elliptic method of decephaliza- 
tion, evincing feebleness in a life-system which is of extreme 
smallness for the Herbivore-type. The animals of the little 
Syrian species were long since described as “a feeble folk.” 
<6 30 : 26). 
Orns appears to be a mark of elevation. hat they are the 
highest 3 poebetivadie is also evident from the elegance rm, 
