THE PHYSIOLOGY OF REPRODUCTION 



hermaphrodites, and tlius shown that, contrary to Steinach's con- 

 clusions, the gonads do not necessarily act antagonistically. The 

 individuals with the grafts, however, possessed the psychical 



Via. 172. — Femini.sed (originally male) guinea-pig "with large 

 protruding teats and small penis. (From Steinaoh.) 



Fig. 173. — Normal male guinea-pig witli rudimentary 

 teats and large penis. (From Steinacli.) 



characteristics of the determined or original sex ; thus, while males 

 with ovarian grafts showed great development of the mammaj, 

 the psychical characters were male. With individuals previously 

 castrated the grafts produced a reversal of psycliical characters. 



