LIST OF ILLUSTRATIONS 



FIGURE PAGE 



I. The Blood Vessels OF THE Human Pituitary Body ... 3 



The Relation of the Meninges to the Pituitary Body of 

 THE Dog <; 



The Innervation of the Pituitary Body according to 



ROUSSY AND MoSINGER ~j 



Diagram of the Hypothalamico-hypophysial Fiber System 



OF the Monkey 8 



5. Colloid-Formation in Neurons of the Supraoptic and 



Paraventricular Nuclei 9 



6. Diagrams Illustrating Views of Different Authors on 



the Relationships of Cells of the Pars Glandularis . . 14 



7. Diagram of the Relationship of the Cells of the Human 

 Pars Glandularis /^r/;?^ 15 



The Effect of Prolonged Treatment by Oestrone on the 

 Gross and Microscopic Appearance of the Pituitary of 

 THE Mouse 20 



9. The Action of Pituitary Gonadotropic Hormone on the 



Urogenital Tract of the Female Chick Embryo ... <^4 



10. The Action of Pituitary Gonadotropic Hormone on the 

 Size of the Testis and the Color of the Bill of the Eng- 

 lish Sparrow n^S 



11. The Action of Pituitary Gonadotropic Hormone on the 

 Ovary AND Oviduct OF the English Sparrow c^-j 



12. Changes in Ovarian Weight and in the Number, Size, and 

 Appearance of the Ovarian Follicles Following Hypophy- 

 sectomy in the Immature Rat 63 



13. Differences in the Response of the Ovary of the Imma- 

 ture Rat to the Pituitary of Horses Differing in Sex and 

 Age 68 



14. "IThe Relationship of the Dose of Follicle-stimulating 

 and>HoRMONE and the Response of the Ovaries and Uterus of 



15. JTHE Immature Mouse 108, 109 



16. Diagram Illustrating the Failure of the Hypophysec- 

 tomized Rat To Form Antihormone in Response to 

 the Excessive Secretion of Gonadotropic Hormone by a 

 Spayed Partner IN Parabiotic Union 114 



f xiii 1 



