based on the principle of Cephalization.—Herbivores. 179 
founder descent to a urosthenic condition, with great length 
behind and a large part of the force of the structure thrown 
into the caudal extremity. 
But, besides the increase of muscular force attending cephalic 
<n gp there is also increase of cephalic foree—the senso- 
eis, The force is so largely purely cephalic, that he may be 
imates to equality along all parts of the body-axis, the animal is 
the next thing in grade of life to a plant; the cephalic centre in 
hale as mentioned on page 160. If, in addition, the systemic 
force is feeble, the body may be contracted both before and 
* ith decreasing cephalic concentration, there may be not only 
toward an equality in the series of parts gr elements. This 1s 
Tecephalization re the analytic meth explained in Art. I, p. 826. 
