xviii CONTENTS. 



BOOK IV. 



THE TISSUES AND MECHANISMS OF REPRODUCTION. 



PACK 



923. The General Features of Reproduction 349 



CHAPTER I. 

 IMPREGNATION. 



SECTION I. 

 ON SOME STRUCTURAL FEATURES OF THE FEMALE ORGANS. 



924. The General Structure of the Uterus .... . . 351 



925. The Minute Structure of the Uterus 352 



926. The Structure of the Vagina 353 



927- The Blood Vessels and Lymphatics of the Uterus 353 



The Ovary, 



928. The Early History of the Ovary 353 



929. The General Structure of the Ovary 354 



930. The Structure of the Graaffiau Follicles 355 



931. The Features of a Ripe Ovum ' 350 



932. The Graaffian Follicle nourishes the Ovum 357 



933. The Escape of the Ovum 358 



934. The Changes in the Ovary after the Escape of the Ovum ; Corpus 



Luteum 358 



SECTION H. 



MENSTRUATION. 



935. The Transference of the Ovum from the Orary to the Uterus . . 360 



936. The Changes in the Uterine Mucous Membrane 361 



937. The Causation of Menstruation 362 



SECTION III. 

 TUB MALE ORGANS. 



938. The Early History of the Testis 364 



939. The General Structure of the Testis and Epididymis 364 



940. The Seminal Tubules ; the Spermatozoa 366 



