Chapter III. Elasmobranchii. Pp. [40]-67.
Segmentation and formation of the layers, pp. [40]-47. Epiblast, p. [47]. Mesoblast, pp. [47]-51. Hypoblast and notochord, pp. [51]-54. General features of the embryo at successive stages, pp. [55]-62. The yolk-sack, pp. [62]-66.
Chapter IV. Teleostei. Pp. [68]-82.
Segmentation and formation of the layers, pp. [68]-73. General history of the layers, pp. [73]-75. General development of the embryo, pp. [76]-81.
Chapter V. Cyclostomata. Pp. [83]-101.
Segmentation and formation of the layers, pp. [83]-86. Mesoblast and notochord, pp. [86], 87. General history of the development, pp. [87]-97. Metamorphosis, pp. [97]-100. Myxine, p. [100].
Chapter VI. Ganoidei. Pp. [102]-119.
Acipenser, pp. [102]-110. Segmentation and formation of the layers, pp. [102]-104. General development of the embryo and larva, pp. [104]-110. Lepidosteus, pp. [111]-119. Segmentation, pp. [111], [112]. General development of embryo and larva, pp. [112]-119. General observations on the embryology of Ganoids, p. [119].
Chapter VII. Amphibia. Pp. [120]-144.
Oviposition and impregnation, pp. [120], 121. Formation of the layers, pp. [121]-124. Epiblast, pp. [125]-127. Mesoblast and notochord, pp. [128], [129]. Hypoblast, pp. [129]-131. General growth of the embryo, pp. [131]-143. Anura, pp. [131]-141. Urodela, pp. [141]-143. Gymnophiona, p. [143].