LIST OF ILLUSTRATIONS xi 



PAGE 



65. Diagram of Longitudinal Section to illustrate the 



Separation of the Embryo . . Facing 120 



66. Diagram showing the Mode of Development of 



the Embryonic Membranes. Early Stage . 124 



67. Diagram showing the Mode of Development of 



the Embryonic Membranes. About Fourth 

 Day . . . . . .125 



68. Diagram showing the Mode of Development of 



the Embryonic Membranes. About Tenth 

 Day . . . . . .126 



69. Longitudinal Section of Tail End of Embryo 



showing Early Development of Allantois Facing 130 



70. Embryonic Central Nervous System . „ 130 



71. Embryo after 4 Days 8 Hours' Incubation . 145 



72. Embryo at the Seventh Day of Incubation . 145 



73. Embryo at the Eighth Day of Incubation . 145 



