462 CATHARINE LINES CHAPIN 



The rete tubules branch and anastomose. The lumina are 

 wide. The epididymis is formed from the anterior end of the 

 Wolffian body, but as yet it is very small, consisting only of 

 a few tubules, the vasa eiferentia, which connect the rete with 

 the Wolffian duct. Lateral and posterior to the testis the 

 Wolffian body is degenerating. No glomeruli are to be found. 

 Tubules are fewer than in the Wolffian body of younger males 

 and cells filling their lumina indicate degeneration. ' The Wolf- 

 fian duct is fully developed. The Miillerian duct has undergone 

 complete atrophy in the region of the gonad. The entire length 

 of the ducts was not sectioned so the vestiges of Miillerian ducts 

 — uterus masculinus — were not observed. 



The ovary of the 14 cm. 9 N26 measures 3.4 mm. Com- 

 pared with an 8.3 cm. 9 the medulla is small and the cortex 

 large. The cortical region is less dense and the cells stain less 

 deeply. The cords of Pfliiger are separated by connective 

 tissue stroma. No 'nests' of cells are as yet formed at the 

 inner ends of the cords of Pfliiger. The interstitial material 

 consists mainly of connective tissue but a few large cells are found 

 which may be the interstitial cells of Leydig.^ ^"'^ - The germ 

 cells which are distinguishable in the cords of Pfliiger are mainly 

 in the indifferent stage In the deeper part of the cortex are 

 found primary oocytes in the early stages of growth.'' The 

 germinal epithelium is a layer of cuboidal cells on the surface 

 of the ovary, continuous with the cords of Pfliiger; no defini- 

 tive albuginea has as yet developed. Some of the follicles which 

 were formed in the medullary cords at a much earlier stage, have 

 degenerated in the 14 cm. 9 leaving only round clusters of cells, 

 sometimes arranged in concentric layers. Others contain germ 

 cells, but the stage which these ova had reached, could not be 

 determined. 



The rete is smaller in cross section than that of the testis 

 and does not extend as far into the ovary. The rete cords are 

 less numerous and less branched than those of the male, but they 

 also have lumina. The rete can be traced into the Wolffian 

 body. Only a few glomeruli persist in the Wolffian body. 

 Those are in the posterior part. There remain none of the large 



