INTERSEXUALITY 



353 



was only one successful case, a castrated male guinea pig, into 

 which testis and ovary were simultaneously engrafted; in all 

 the other experiments the gonad of the opposite sex or even 

 both gonads underwent degeneration. 



Sand obtained better results by a new method introduced 

 by himself. He implanted the ovary directly into the testicle 



Fig. 125. — Artificial ovaviotestis in the guinea 

 pig, 4 months after transplantation of 

 ovary into an animal i month old. Ripe 

 follicles and theca-lutein cells; no cor- 

 pora lutea. The testicle remained in- 

 fantile; no spermatozoa. Normal quan- 

 tity of interstitial cells. — From Sand. 



in situ. By this ''intratesticular" transplantation of the ovary 

 performed on rats and guinea pigs, Sand succeeded in pre- 

 serving the engrafted ovary for several months {Fig. 125), often 

 without interfering with normal spermatogenesis {Fig. 126) or 

 normal development of interstitial tissue in the testicle, whereas 

 follicles, interstitial tissue and even corpora lutea were present 

 in the" engrafted ovary .1 Both the testicle and the ovary 



iSand speaks of an ovaviotestis (M?511er-S^rensen) instead of an " ovo- 

 testis "; the first expression is indeed more suitable. 



