XXXII CONTENTS OF VOL. It. 
PART IV. 
CLASSIFICATION OF ANIMALS. 
Divided into Vertebral and Invertebral. 
I. 
VERTEBRATA. 
Page. 
Character. Description, . . wT 161 
1. With Warm Blood. 
QUADRUPEDS. 
I.—MAMMALITA. 
Structure of the teeth. Ivory, enamel, cement. Mode 
of formation. Different forms of teeth. : 165 
1. PLACENTARIA. 
PEDATA. 
UNGUICULATA. 
a. Furnished with tusks. 
1. Thumbs fitted to act in opposition to the fingers. 
Bimana. Man, ; : 171 3 
Quadrumana, Simiade. Limuride. : . 172 
2. Thumbs incapable of acting in opposition to the 
fingers. 
Cheiroptera, : : : 175 
Fere. 
Hind legs developed for walking. 
Plantigrada. ; é : 181 | 
