LIST OF ILLUSTRATIONS 



Xlll 



FIG. PAGE 



136. Tongue of adult Gorilla 205 



137. Superior laryngeal aperture of adult Gorilla .... 205 



138. Tongue of young Chimpanzee 206 



139. Superior laryngeal aperture of Orang-utan .... 206 



140. Alimentary canal of Gorilla 207 



141. Abdominal viscera of adult Gorilla ...... 208 



142. Liver of young Gorilla 208 



143. Sperm-cells of Gorilla. (After Retzius) 211 



144. Cranium of Hylobates miilleri ....... 213 



145. Cranium of Orang-utan . . . . . . . .215 



146. Cranium of female Chimpanzee . . . . . . .219 



147. Crania of Gorilla and Chimpanzee . . . . . .219 



148. Section of cranium of Gorilla ....... 223 



149. Cranium of Orang-utan ........ 224 



150. Cranium shewing angles ........ 225 



151. Cranium of aboriginal native of Australia .... 228 



152. Cranium of Dog 229 



153. 154, 155, 156. Components of cranial axis . . . 229, 230, 231 



157. Diagram of Inclination of foramen magnum .... 233 



158. Cranium of Gorilla. Tracing ....... 234 



159. Cranium of Orang-utan. Tracing ...... 235 



160. Basis cranii of Orang-utan ........ 239 



161. 162. Canine and post-canine teeth of Lemur .... 241 

 163, 164. Canine and post-canine teeth of Tarsius .... 241 

 165, 166. Canine and post-canine teeth of Cebus .... 241 

 167, 168. Canine and post-canine teeth of Macacus .... 241 

 169, 170. Canine and post-canine teeth of Hylobates . . . 241 



171. Diagram of premolar tooth of Lemur ..... 242 



172, 173. Canine and post-canine teeth of Orang-utan . . . 247 

 174, 175. Canine and post-canine teeth of Gorilla .... 247 

 176, 177. Canine and post-canine teeth of Chimpanzee . . . 249 

 178, 179. Canine and post-canine teeth of aboriginal nativi 



Australia ......... 



180. Incisor teeth of Lemur ....... 



181. Incisor and lower canine teeth of Tarsius 



182. Incisor teeth of Cebus 



183. Incisor teeth of Macacus . 



184. Incisor teeth of Hylobates . 



185. Incisor teeth of Orang-utan 



186. Incisor teeth of Gorilla 



187. Incisor teeth of Chirupanzee 



188. Incisor teeth of aboriginal native of Australia .... 



L89. Accessory tooth of Chimpanzee ....... 



190, 191. Accessory dental masses in maxilla of native of New Britain 



of 



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