CONTENTS. 



XI 



The Tarsal Bones of the Rhinoceros, the Hippopotamus, and the 



Elephant .... 

 Skeleton of the Sloth . 

 Of the Ant-eater .... 

 Of the Mole .... 



Of the Bat 



Skeletons of the Carnivorous Mammalia 



Of the Lion .... 



Of the Kangaroo .... 



Conditions of Marsupial Structure 



Skeletons of the Orang, and of Man 



Comparison of the Bony Structure of the Ape and Man 



Adaptation of the Human Skeleton to the erect Posture 



Modifications of the Human Skeleton, in relation to the Archetype 



General and Special Terms in Osteology 



The Facial Angle . . 



Progressive Expansion of the Cranium 



Crania of the Crocodile and the Albatross 



Crania of the Dog and the Chimpanzee 



Skulls of the Australian and the European 



Concluding Eemarks . , . 



ON THE PRINCIPAL FORMS AND STRUCTURES OF 

 THE TEETH. 



Intimate Relation of the Teeth to the Food and Habits of the Animal 229 



Dental Tissues and Pulp Cavities 231 



Section of the Human Tooth ....... 282 



Chemical and Structural Composition of Teeth .... 234 



Complex and Compound Teeth 235 



Section of the Horse's Incisor 235 



Transverse Section of Tooth of the Labyrinthodon . . . 236 



Transverse Section of the Orycteropus 238 



Grinders of an Elephant 239 



Dental System of Fishes 240 



Skull and Teeth of the Pike 240 



Jaws and Teeth of the Sting-ray^ 242 



Teeth of the Wolf-fish 245, 246 



Tissue of Teeth in Fishes 247 



Teeth of the Barracuda Fish . 248 



