194 



OVARY AND PAROVARIUM, BY W. WALDEYER. 



process of growth from the epithelial cells of the germ organ. 

 Similar relations may be likewise easily demonstrated in Mam- 

 mals (embryoes of Dogs and Rabbits). 



Fig. 196. 



Fig. 196. (Fig. 50, PL v., of my Treatise.) Transverse section of the 

 Wolffian body, with the rudiment of the ovary and of Midler's duct, 

 taken from the embryo of the Fowl at the end of the fourth day of 

 incubation. WK, Wolffian body ; y, transverse section of the Wolffian 

 duct ; a, and a, thickened germ epithelium ; z, Miiller's duct in con- 

 nection with the germ epithelium ; E, rudiment of the ovary, with 

 greatly thickened germ epithelium ; o o, primordial ova ; m, mesen- 

 tery ; L, lateral wall of the belly. 



The further development of the ovaries depends upon a 

 peculiar mode of growth of the superficial epithelium (germ- 

 epithelium) on the one hand, and of the subjacent vascularized 

 stroma on the other, of which fig 197 may be taken as a repre- 

 sentation. Certain more or less delicate and vascular processes 

 of connective tissue now shoot forth from the stroma, whilst 

 coincidently the epithelium increases by the continual produc- 

 tion of new cells j the processes then penetrate between the 





