LIST OF ILLUSTRATIONS. 



KlftDKK 



PACE 



34. Anodonta Transverse Sections and Gill (Original), 



35. Helix Digestive Organs and Nervous System (Original), . 124 



36. ,, Buccal Mass (Claus, after Refer stein), . .126 



37. Reproductive Organs (Original), . 



38. Amphioxus (Marshall and Hurst), 



39. Sections (Original), ... .140 



40. ,, Blastula and Gastrula (Glaus, after Hatschek), . 148 



41. ,, Sections of Embryos (Haddon, after Hatschek), . 149 



42. Larval Stages (Claus, after Hatschek), . .150 



43. Scyllium Skull, &c. (Original), . .156 



44. Skeleton of Pectoral Fins (Original), . . .159 



45. ,, Pelvic Fins (Original), . . . 159 

 40. General Dissection (Original), .... 163 



47. ,, Nerves (after Wiedersheim), . . . .170 



48. Diagrams of Membranous Labyrinth (Bell, after Waldeyer), . 173 



49. Rana Skin (after W iedersheim), . . . . .177 



50. ,, Endoskeleton (Original, and after Ecker), . . . 181 



51. ,, General Dissection (Original), .... 190 



52. Unstriated Muscle- Fibres (Landois and Stirling), . .192 



53. Rana Heart (after Ecker), . . . . ,195 



54. ,, Arteries ( ), . . . . .196 



55. ,, Veins ( ,, ), . . . . .199 



56. ,, Posterior Lymph-Hearts (Ecker), . . . .200 



57. ,, Muscle-Fibres from Heart (Landois and Stirling), . 201 



58. Small Artery showing the Goats ( ), .201 



59. Capillaries (Landois and Stirling), .... 202 



60. Rana Female Reproductive Organs (after Ecker and Wieders- 



heim), ........ 207 



61. Histology of Nerve (Landois and Stirling), . . . 214 



62. Rana- Sense Organs (after Ecker and Wiedersheim), . .219 



63. Diagrammatic Horizontal Section of Eye (Landois and Stirling), 220 



64. Diagram of Layers of Retina (Landois and Stirling), . . 221 



65. Rana Cleavage of Oosperm (Haddon, after Ecker), . . 223 



66. Early Stages (Haddon after Gotte), . . . 223 



67. ,, Diagrammatic Longitudinal Section through Embryo 

 (Haddon, after Gotte), . . . . . . 225 



68. Columba Endoskeleton (Original), . . . .235 



69. (),.... 240 



70. ,, General Dissection of Male (Original), . . . 243 



71. ,, Urinogenital Organs (Original), . . . . 250 



72. ,, Diagrams of the Membranous Labyrinth (Bell, after 

 Waldeyer), .... 255 



