XXVI LIST OF ILLUSTRATIONS. 



FIG. PAGE 



136. Spinal cord in vertical section . . . 409 



137. Experiment, showing effect of poisons upon nerves . . 412 



138. Pigeon, after removal of the hemispheres . . . 421 



139. Aztec children ....... 426 



140. Brain in situ ... ... 428 



141. Transverse section of brain .... . 429 



142. Pigeon, after removal of the cerebellum .... 431 



143. Brain of healthy pigeon in profile ..... 433 



144. Brain of operated pigeon in profile ..... 433 



145. Brain of healthy pigeon, posterior view .... 433 



146. Brain of operated pigeon, posterior view . . 433 



147. Inferior surface of brain of cod ..... 436 



148. Inferior surface of brain of fowl ...... 436 



149. Course of optic nerves in man ...... 437 



150. Distribution of fifth nerve upon the face ... . . 452 



151. Facial nerve ........ 457 



152. Pneumogastric nerve ....... 462 



153. Diagram of tongue ....... 483 



154. Distribution of nerves in the nasal passages .... 489 



155. Vertical section of eyeball ...... 493 



156. Dispersion of rays of light ...... 495 



157. Action of crystalline lens ...... 495 



158. Myopia ......... 496 



159. Presbyopia ........ 496 



160. Vision at short distance . . . . . .497 



161. Vision at long distance ....... 497 



162. Refraction of lateral rays ...... 500 



163. Skull, as seen by left eye ...... 502 



164. Skull, as seen by right eye . . . .502 



165. Human auditory apparatus ...... 507 



166. Great sympathetic . . . . . . 515 



167. Cat, after division of sympathetic in the neck . . . 522 



168. Different kinds of infusoria ...... 530 



169. Experiment on spontaneous generation . From Schultze 532 



170. Trichina spiralis . . . . . . .535 



171. Tsenia ......... 536 



172. Cysticercus, retracted . . . . . . .537 



173. Cysticercus, unfolded ....... 537 



174. Blossom of Convolvulus purpureus . . . . . 540 



175. Single articulation of Tsenia crassicollis .... 541 



176. Human ovum ........ 544 



177. Human ovum, ruptured by pressure ..... 545 



178. Female generative organs of frog ..... 547 



179. Mature frogs' eggs ....... 548 



180. Female generative organs of fowl . . . . .551 



181. Fowl's egg ... . .... 552 



182. Uterus and ovaries of the sow ...... 553 



183. Generative organs of human female ..... 554 



184. Spermatozoa ........ 557 



185. Graafian follicle . 5b'8 



