LIST OP ILLUSTEATIONS. xix 



FIG. PAGB 



154. The brain of an adult rabbit from the ventral surface. (From 



Marshall and Hurst) 383 



155. A transverse section across the head of a rabbit embrj'o of the 



fourteenth day 388 



156. A transverse section across the head of a rabbit embryo of the 



twenty-first day ......... 391 



157. A diagrammatic section across the head of an adult rabbit, to show 



the relations of the internal ear, tympanic cavity and membrane, 

 and the auditory ossicles. (From MarshaE and Hurst) . . 394 



158. A transverse section across the head of a rabbit embryo at the end 



of the eleventh day, the section passing through the medulla 

 oblongata, the ears, and the pharynx 395 



159. A transverse section across the head of a rabbit embryo of the 



fifteenth day, passing through the medulla oblongata, the ears, 

 and the pharynx 396 



160. A diagrammatic view of an adult male rabbit from the left side. 



(From Marshall and Hurst) 401 



161. A rabbit embryo at the end of the twelfth day, seen from the right 



side 402 



162. The skull of the rabbit from the right side. (From Marshall and 



Hurst) . , 405 



163. A transverse section across the thorax of a rabbit embryo of the 



sixteenth day 409 



164. A transverse section across the body of a rabbit embryo of the 



early part of the tenth day, showing the supposed epiblastic 

 origin of the Wolffian duct. (After Hensen) .... 422 



165. A transverse section across the body of a rabbit embryo at the end 



of the eleventh day 423 



166. A transverse section across the hinder part of the body of a rabbit 



embryo of the fourteenth day . . .... 424 



167. Selected vertebras from the rabbit. (From Marshall and Hurst) . 431 



168. A transverse section across the uterus, with the contained blasto- 



dermic vesicle, of a rabbit at the end of the seventh day. (In 

 part after Duval) ... 436 



169. A transverse section across the uterus and the contained blasto- 



dermic vesicle of a rabbit at the end of the ninth day. (In part 

 after Duval) 439 



170. A transverse section across the uterus and the contained embryo 



of a rabbit at the end of the nineteenth day .... 443 



THE HUMAN EMBRYO 



171. Part of a vertical section of the ovary of a new-born infant. (From 



Strieker's ' Histology') 451 



172. Front view of Reichert's ovum. (From KoUiker, after Eeichert) . 472 



173. Side view of Reichert's ovum. (From Kiilliker, after Eeichert) . 472 



174. Diagrammatic section of Reichert's ovum. (From His) . . . 473 



175. A longitudinal section of the uterus, with an ovum m situ, esti- 



mated as about the thirteenth day. (After Kollmann) . . 474 



176. Outline figure of a human embryo lettered by Professor His, E, and 



estimated as about the thirteenth day. (From His) . . . 477 



