XX LIST OF ILLUSTRATIONS. 



FIG. PAGE 



143. Frog's leg, showing galvanization of the muscles .. . . 419 



144. Frog's leg, showing galvanization of the nerve . . . 419 



145. Frog's legs connected, showing action of direct and inverse currents . 421 



146. Diagram of registering apparatus ..... 427 



147. The brain and spinal cord, in profile ..... 433 



148. Transverse section of the spinal cord ..... 434 



149. Brain of alligator . . . . . . .436 



150. Brain of pigeon ........ 437 



151. Brain of rabbit . . . . . . .437 



152. Medulla oblongata and base of the brain . . (Hirschfeld) 439 



153. Medulla oblongata, tuber annulare, and crura cerebri (Hirschfeld) 440 



154. Diagrammatic section of the human brain . . . . 441 



155. Transverse section of the spinal cord ..... 444 



156. Fissures and convolutions of the human brain .... 472 



157. Horizontal section of the human brain .... 476 



158. Vertical section of a cerebral convolution . . (Henle) 478 



159. Portraits of idiotic children ...... 482 



160. Pigeon, after removal of the cerebral hemispheres . .. . 483 



161. Brain of the dog ; viewed from above . . . . . 489 



162. Brain of the dog ; viewed in profile ..... 489 



163. Section of the cerebellum and medulla oblongata . (Henle) 493 



164. Brain of healthy pigeon, profile view ..... 497 



165. Brain of operated pigeon, profile view .... 497 



166. Brain of healthy pigeon, posterior view .... 497 



167. Brain of operated pigeon, posterior view .... 497 



168. Transverse section of medulla oblongata . . (Henle) 504 



169. Section of cerebral hemisphere, showing olfactory tubercle (Henle) 514 



170. Brain of the cod, showing optic nerves .... 519 



171. Brain of the fowl, showing optic nerves .... 519 



172. Course of the optic nerves, in man ..... 520 



173. Nucleus of the trigerninus nerve . . . (Henle) 527 



174. Diagram of the fifth nerve, and its distribution . . . 528 



175. Nucleus of the abducens and facial nerves . . (Henle) 538 



176. Diagram of the facial nerve, and its distribution . . . 541 



177. Portrait of facial paralysis ...... 544 



178. Facial nerve and connections, in the aqueduct of Fallopius . . 548 



179. Ninth, tenth, and eleventh cranial nerves . . (Hirschfeld) 558 



180. Section of medulla oblongata, through lower part of olivary body 



(Henle) 575 



181. Section of medulla oblongata, through middle root of olivary body 



(Henle) 576 



182. Section of medulla oblongata, through hypoglossal nerve root (Henle) 577 



183. Sections of tuber annulare, medulla oblongata, and spinal cord . 580 



184. Ganglia and nerves of the sympathetic system . . . 584 



185. Cat, after section of the right sympathetic .... 588 



186. Tactile corpuscle of the human skin . . . (Kolliker) 594 



187. Diagram of tongue, with nerves and papillae .... 601 



188. Distribution of nerves in the nasal passages . . ... 605 



189. Horizontal section of the right eyeball . . . .608 



190. Vision without a lens ....... 614 



191. Vision with a lens ....... 614 



192. Indistinct image, from excessive refraction .... 615 



