PARTS CONCERNED IN REPRODUCTION. 245 



embryonic development, both sets of organs continue 

 equally apparent, so that the sex is with difficulty distin- 

 guishable, as is particularly remarked by Weber in the case 

 of the Rabbit. 



The Wolffian body itself, there is reason to believe, has 

 a much more permanent existence than was at one time 

 supposed, for a structure, which is probably to be regarded 

 as its residuum (parovarium) has been discovered by Rosen- 

 muller in the broad ligament of the uterus of the foetus 

 and infant,* and has been shown by Kobelt to continue to 

 exist in the same situation, even in the adult female,")" while, 

 in the male it is converted into the epididymis, and, per- 

 haps, in part (superiorly) into a peculiar body, to which 

 Giraldes has called attention, in the spermatic cord (Corps 

 Innomine.) 



So far, therefore, as appears from the facts of develop- 

 ment, we may either assume, in conformity with Knox's 

 view of the primordial duplicity of sex, that in the whitish 

 spot on the inner margin of the Wolffian body, where the 



curately compared to the whole genital sinus of the female that is, to 

 the uterus and vagina taken together. (Cyclopaedia of Anatomy and 

 Physiology, Art. Vesicula Prostatica, Suppl., p. 142.) The Prostrate 

 Gland, in which it is imbedded, has been held to represent the glandular 

 substance of the cervix uteri, but this view is negatived by its occasional 

 occurrence conjointly with a distinct uterus. (Dr. Warren, in Amer. Journ. 

 of Med. Science, July, 1857, p. 127.) Its homologues, therefore, as well 

 as those of the vesiculse seminales, are somewhat uncertain. Dr. Simpson 

 suggests that the former may be represented by the follicles of the walls 

 of the female urethra, while the latter may be regarded as analogous ap- 

 pendages of the seminal canals. The relations of the external organs are 

 more obvious, but it is not necessary for our subject to enter upon them. 

 A full tabular view of the homologies of all the parts, both external and 

 internal, is given in Dr. Simpson's article on Hermaphroditism, as re- 

 printed in the second volume of his Obstetric Works, p. 320. 

 * " Quaedam de ovariis embryonum et fcatuum humanorum." 

 f Philosophical Transactions, April, 1858. See also Dr. A. Farre, in 

 Supplement to the Cyclopaedia of Anatomy and Physiology, Art. 

 " Uterus," p. 593. 



