xv i LIST OP ILLUSTRATIONS. 



FIG. PAGE 



872. Position of the Nuclei of the Cranial Nerves. (After EDINGER)....... . 822 



373. Distribution of the Third and Sixth Nerves in the Orbit. (LEVEILLE) 824 



374. Nuclei of Origin of the Third and Fourth Nerves. (POIRIER and CHARPY).. 826 



375. The Origin of the Trigeminal Nerve 829 



376. Ophthalmic Division of the Fifth Nerve. (LEVEILLE) 830 



377. Distribution of the Sensory Nerves of the Head, together with the Situation 



of the Motor Points on the Neck. (LANDOIS) 832 



378. Graafian Follicle from Ovary of a New-born Child. (After P. STRASSMAN) 842 



379. Human Spermatozoon. (MANTON) 843 



380. Transection of Chick Embryo, Showing the Three Plastodermic Layers. 



(MANTON) 844 



381. Diagram Showing Development of Spermatozoa in a Seminal Tubule. (Mc- 



MURRICH 845 



382. Schema to Indicate the Process of Maturation of the Spermatozoa. (BovERi, 



HOWELL) 846 



383. Diagram Showing Essential Facts in the Maturation of the Egg. (WILSON). 846 



384. Schema to Indicate Process of Maturation of Ovum. (BOVERI, HOWELL) 847 



385. Schematic Representation of the Process Occurring During Cell-division. 



(BOVERI, HOWELL) 848 



385a. Differentiation of Germ Cells and Somatic Cells. (BOVERI) 850 



386. Schematic Representation of the Process Occurring During the Fertilization 



and Subsequent Segmentation of the Ovum. The chromatin (chromosomes) 

 of the ovum is represented in blue, that of the spermatozoon in red. 

 (BOVERI, HOWELL) 852 



387. Formation of Decidua (the decidua is colored black, the ovum is represented 



engaged between two projecting folds of membrane). (After DALTON) 854 



388. Projecting Folds of Membrane Growing Around the Ovum. (After DALTON). . 854 



389. Showing Ovum Completely Surrounded by the Decidua Reflexa. (After DAL- 



TON) 854 



390. Diagram of an Early Stage of a Primate Embryo. (MiNOT) 855 



391. Uterus at Menstrual Period, Showing Congested Area and Destruction of 



Mucous Membrane. (Photomicrograph by Gramm. ) (GILLIAM) 859 



392. Virginal Uterus. (GRANDIN and JARMAN) 861 



393. Normal Uterine Contraction Effect of Mammary Gland Extract on Uterine 



Contraction 862 



393a. After Effect of ^/^ Grain of Extract of Mammary Gland 862 



393b. Primary Effect of Prostrate on Uterine Contractions 863 



393c. After Effect of Prostate on Uterine Contractions 863 



394. The Fcetal Circulation. (GRANDIN and JARMAN) 864 



