696 



THE PHYSIOLOGY OF REPRODUCTION 



and Sand have been described in an earlier chapter. Sand ^ has 

 recently demonstrated the eflects of simultaneous transplantation 

 of a testis and an ovary in an infantile castrated guinea-pig and 



the grafting of ovaries into the testes of rats or guinea-pigs, and 

 has shown that hermaphrodites with a decided bisexualism of the 



' Sand, " Experiments on the Internal Secretion of the Sexual Glands, 

 especially on Experimental Hermaphi-oditism," Jour, of Fhysivl.^ vol. liii., 1919. 



