Volume 2

A treatise on comparative embryology / by Francis M. Balfour.

  • Francis Maitland Balfour
Date:
1880-1881
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on comparative embryology / by Francis M. Balfour. Source: Wellcome Collection.

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    Chapter VIII. Aves. Pp. 120—166. Segmentation and formation of tlie layers, pp. 120—138. General history of the germinal layers, pp. 138—140. General development of the embryo, pp. 140 —150. FoRtal membranes, pp. 154 — 165. Amnion, pp. 154—158. AUantois, pp. 159, 160. Yolk-sack, pp. 161—165. Chapter IX. Keptilia. Pp. 167—176. Lacertilia, pp. 167—173. Segmentation and formation of the layers, pp. 167 —171. General development of the embryo, p. 172. Embryonic membranes and yolk-sack, pp. 172—173. OpJiidia, pp. 173, 174. Chelonia, pp. 174, 175. Chapter X. Mammalia. Pp. 177—228. Segmentation and formation of the layers, pp. 177—188. General growth of the embryo, pp. 188—192. Embryonic membranes and yolk-sack, pp. 193—198. Comparative history of the Mammalian foetal membranes, pp. 198—215. Com- parative histology of the placenta, pp. 215, 216. Evolution of the placenta, pp. 216—218. Development of the Guinea-pig, pp. 218—221. The human embry o, pp. 221—226. Chapter XI. Comparison or the formation of the germinal layers AND OF the early STAGES IN THE DEVELOPMENT OP Vertebrates. Pp. 229—257. Formation of the gastrula, pp. 229—242. The formation of the mesoblast and ^ of the notochord, pp. 243—249. The epiUast, pp. 249—252. Formation of the central nervous system, pp. 250—252. Formation of the organs of special sense, p. 252. Summary of organs derived from the three germinal layers, pp. 252—254. Growth in length of the Vertebrate embryo, pp. 254—256. The evolution of the allantois and amnion, pp. 256, 257. Chapter XII. Observations on the ancestral form of the Chordata. P]). 2.58—273. General considerations, pp. 258—262. The medullary canal, pp. 262, 263. The origin and nature of the mouth, pp. 263—266. The cranial flexure, pp. 266, 267. The postanal gut and neurenteric canal, pp. 267—269. The body-cavity and mesoblastic somites, p. 269. The notochord, pp. 269, 270. Gill clefts, pp. 270, 271. Phylogeny of the Chordata, pp. 271—273. Chapter XIII. General Conclusions. Pp. 274—319. I. Mode of origin and homologies of the germinal layers, pp. 274— 297. Formation of the primary germinal layers, pp. 275, 276. Invagination, pp. 276, 277. Delamination, pp. 277—279. Phylogenetic significance of delami- nation and invagination, pp. 280—285. Homologies of the germinal layers, pp. 285, 286. The origin of the mesoblast, pp. 286—297. II. Larval forms: their nature, origin, and affinities. Preliminary considerations, pp. 297—299. Types of larva, pp. 299—316. Phylogenetic con- clusions, pp. 316, 317. General conclusions and summary, pp. 317, 318.