296 



INTERNAL SECRETIONS 



did not "take," and in which no other signs of feminization 

 were present. I think Steinach was mistaken as to this detail; 

 the accumulation of fat in the abdomen of the castrated male 

 animal being in my experience sometimes absolutely enormous. 



Fig. 11^. —Litter of normal guinea pigs, about 7 

 months old. Female between two males. 



This accumulation of fat after castration was indeed only 

 absent in cases of chronic disease. 



Notwithstanding all the objections which have been made 

 in regard to details, there can be no doubt that the experiments 



castrated 

 male. 



normal 

 female. 



feminized 

 male. 



normal 

 male. 



Fig. 119. — Influence 

 — From Steinach. 



iirian transplantation on size of male guinea pig. 



of Steinach and of those who have repeated them show that the 

 development of fern ale sex characters in the male animal is 

 induced by the ovary, and it is very probable that the de- 

 velopment of male sex characters is inhibited by this organ. 



