LIST OF ILLUSTRATIONS 



Fig. page 



98. Upper molar tooth of a recent Horse . . .142 



99. The skeleton of Ehinoceros antiquitatis, the Woolly 



Rhinoceros of the late Pleistocene period in 

 Europe and Siberia ..... 143 



100. Photograph of a stuffed specimen of the Square- 



mouthed African Rhinoceros [R. simus . . 144 



101. Skeleton of Titanotherium (Brontops) rohusUim, 



from the Lower Miocene of Dakota . . .145 



102. Photograph of a skull of Titanotherium . .146 



103. Side-view] of the skull of Titanotherium . . 147 



104. Skeleton of Dinoceras mirahile . . . 148 



105. Probable appearance in life of the Dinoceras 



mirahile of North America .... 149 



106. Photographs of plaster casts of the brain-cavity of 



(.4) Dinoceras, (B) Hippoj^otamus, (C) Horse, and 



(D) Rhinoceros ...... 150 



107 Drawing of the skull of Arsinoitherium Tittelli 



(Beadnell) 152 



108. A drawing showing the probable appearance in life 



of Arsinoitherium ...... 153 



109. Drawing of the head of the Five-horned Giraffe 156 



110. Photograph of the skull of the Five-horned Giraffe 157 



111. Front teeth of the lower jaw of the Giraffe and 



allied animals . . . . . .159 



112. Photograph of a restored skull of the Sivatherium 160 



113. Photograph of the skull of the Samotherium . 161 



114. Restored skeleton of the giraffe-like animal Hella- 



dotherium . . . . • . .162 



xvi 



