LIST OF ILLUSTRATIONS 



of the 



and 



FIG. 



141. Theromorph (Mycterosaurus), skull 



142. Theromorph (Cynognathus), skull 



143. Dog, skull .... 



144. Primate (Chimpanzee), skull 



145. Snake, streptostylic skull . 



146. Chelone, hind view of skull 



147. Ornithorhynchus, hind view of skull 



148. Varanus, palatal view of skull . 



149. Dog, palatal view of skull 



150. Lower jaws of Varanus and dog 



151. Reptilian and mammalian methods of articulation 



lower jaw, and auditory ossicles . 



152. Scyllium, development of vertebral column 



153. Vertebral column of Scyllium, Amia, Embolomeri 



154. Vertebral column of bony fish, crocodile, and Sphenodon 



155. Crocodile, anterior region of vertebral column . 



156. Dorsal and ventral ribs ..... 



157. Cladoselache, pectoral fin . .... 



158. Sauripterus, fin, and pentada.ctyl limb 



159. Sphenodon, fore limb ..... 



160. Sphenodon, gastralia and pectoral girdle . 



161. Ornithorhynchus, pectoral girdle 



162. Evolution of tetrapod limb .... 



163. Wings of bird, Pterodactyl, and bat . 



164. Fore limbs of Ichthyosaurus, Plesiosaurus, pengui 



dolphin ....... 



165. Homocercal tail ...... 



166. Heart and aortic arches ; comparative diagram . 



167. Segmentation of the head ..... 



168. Development of eye- muscles .... 



169. Section through spinal cord showing relations of nerve-roots 



and functional components . 



170. Diagram of functional nerve components 



171. Sections through end-brain of dogfish, frog, Chelonian, and 



shrew ........ 



172. Dorsal view of brains of Petromyzon, Scyllium 



Ceratodus, Triton, Lacerta, Columba, Lepus 



173. Autonomic nervous system 



174. Pituitary body of cat 



175. Radiation of lower chordates 



176. Radiation of amphibia 



177. Radiation of reptiles . 



178. Radiation of birds 



179. Radiation of mammals 



180. Piltdown skull . 



181. Rhodesian skull 



182. Neanderthal and modern man : skeletons compared 



183. Comparison of sections of skulls 



184. Comparison of brains of Macroscelides, Tupaia, Tarsius and 



marmoset . . . . . . . . 



185. Comparison of embryos of dogfish, lizard, chick, rabbit 



and man 



Gadus 



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