Fig. 190. 



sect. 208.] DEVELOPMENT OF THE ORGANS OF GENERATION. 467 



difficult to find even in the vaginal mucous membrane. In the 

 fetter situation they are seen to divide, but their terminations 

 have hitherto been but little investigated. I have never found 

 nerves 111 the vascular papillae; on the other hand, I have occa- 

 sionally observed them in the clitoris in small non-vascular papillae 

 which also contained rudimentary tactile corpuscles, and both 

 lure and upon the surface of the mucous membrane itself (in 

 winch also structures similar to tactile corpuscles may be detected 

 here and there), I have noticed an appearance of loops upon the 

 nerves, both on the finer and the thicker fibres. In the clitoris of 

 Vie so* I) r. gander, of Helsingfors, has discovered Pacinian 

 bodies, winch I have also seen; and junctions between the nerve- 

 tubules in the papilla? by means of loops. 



§ 208. Physiological Remarks.-The development of the internal 

 parts of generation in the female, which was already spoken of 

 above (§ 201), completely agrees in its early stages with the pro- 

 cess observed in the male; and it is only after some time that the 

 histological development of the sexual 

 glands begins to be different in the two 

 sexes: it is to be remembered, how- 

 ever, that in the female, the Wolffian 

 body, beyond forming the appendage to 

 the ovary, enters into no further re- 

 lation with the genital organs ; whilst 

 the so-called ' ducts of Mailer ' are 

 transformed into the Fallopian tubes, 

 uterus and vagina. With' regard to the 

 histological condition of their parts, it 

 is almost only the ovaries which possess 

 any great interest. They consist, at 

 first, of ordinary formative cells, mea- 

 suring 0-005'" to 0-009"', some of 



which are subsequently transformed into fibres and vessels, while 

 others continue as cells, multiply spontaneously, probably by 

 division, and are subservient to the formation of the Graafian folli- 

 cles. The latter, according to Barry, first present themselves in the 

 form of small groups of cells (each group measuringVoi"'), which 

 cdhtam in the interior a clear vesicle— the germinal vesicle; these 

 groups, however, soon assume the nature of follicles, by the form- 

 ation externally of a delicate structureless membrane 'around the 

 cells, and the cells then assume the characters of an epithelium. 



n 11 2 



Three Graafian follicles from tiie 

 ovary of a newly-born infant, magni- 

 fied 350 times. 1, without, 2, with 

 acetic acid. a. structureless coat of 

 the follicle ; 6. epithelium (memb.ana 

 granulosa) ; c. yelk ; d. germinal vesi- 

 cle with spot; e. nuclei of the epithe- 

 hal cells ; /. vitelline membrane, verv 

 delicate. J 



