CONTENTS OF VOLUME 11. 



Chapter I. Cephalochorda. Pp. 1 — 7. 



Segmentation and formation of the layers, pp. 1, 2, Central nervous system, 

 pp. 3, 4. Mesoblast, p. 5. General history of larva, pp. 5 — 7. 



Chapter II. Urochorda. Pp. 8—32. 



Solitaria, pp. 8 — 18. Development of embryo, pp. 8 — 13. Growth and struc- 

 ture of free larva, pp. 13 — 16. Eetrogressive metamorphosis, pp. 16 — 18. Seden- 

 taria, p. 19. Natantia, pp. 19 — 23, DoUolida, pp. 23, 24. Salpidce, pp. 24 — 28. 

 Appendicular ia, p. 28. Metagenesis, pp. 28 — 31. 



Chapter III. Elasmobranchii. Pp. 33 — 54. 



Segmentation and formation of the layers, pp. 33—38. Epiblast, pp. 38, 39. 

 Mesoblast, pp. 39 — 42. Hypoblast and notochord, pp. 42 — 45. General features 

 of the embiyo at successive stages, pp. 45 — 51, The yolk-sack, pp. 51 — 54. 



Chapter IV. Teleostei. Pp. .55 — 67. 



Segmentation and formation of the layers, pp. 55 — 58. General history of the 

 layers, pp. 58—61. General development of the embryo, pp. 61 — 66. 



Chapter V. Cyclostomata, Pp. G8 — 83. 



Segmentation and formation of the layers, pp. 68 — 71. Mesoblast and noto- 

 chord, p. 71. General history of the development, pp. 72 — 80. Metamorphosis, 



pp. 80—82. Myxine, p. 82. 



Chapter VI. Ganoidei. Pp. 84 — 98. 



Acipenser, pp. 84 — 91. Segmentation and formation of the layers, pp. 84— 86* 

 General development of the embryo and larva, pp. 86 — 91. Lepidosteus, pp. 91 

 — 98. Segmentation, pp. 91, 92. General development of embryo and larva, 

 pp. 92—98. General observations on the embryology of Ganoids, p. 98. 



Chapter VII. Amphibia. Pp. 99 — 119. 



Oviposition and impregnation, pp. 99, 100. Formation of the layers, pp. 100 

 — 103. Epiblast, pp. 103—105. Mesoblast and notochord, pp. 105, 106. 

 Hypoblast, pp. 107, 108. General growth of the embryo, pp. 108—118. Anura, 

 pp. 108—116. Urodela, pp. 116—118. Gymnophiona, p. 118. 



