INTERNAL SECRETION OF OVARY 221 



adult woman. The question has been re-examined by Aschner. 

 He states that the epithehoid interstitial cells are already 

 present in the new-born child. The interstitial tissue is also 

 well developed during early youth, but the quantity of lipoids 

 in the ovary varies very much. Contrary to Wallart, Aschner 

 finds that the interstitial cells in the ovary of man diminish 

 as puberty is approached. The statement of Aschner, that 



Fig. 10 1. — Section through ovary of adult cat (Prot. Nr. 276). x 150. 

 Epithelioid interstitial cells are visible in the connective tissue of 

 the stroma. — Prepar, of Wagner; photo of KuU. 



during gravidity the interstitial tissue, after being reduced to 

 its minimum upon the development of the first corpus luteum, 

 increases again, is in accordance with the above-mentioned 

 statement of Wallart. The increase of the interstitial tissue 

 takes place especially in the second half of gravidity. During 

 menstruation no increase in the number of cells could be found 

 by Aschner. Lately the question of the interstitial tissue in 

 the human ovary has been very much discussed by German 

 authors. Most of them deny the presence of such cells in the 



