GONADS AS CONTROLLERS OF CHARACTERISTICS 155 



Fig. 3 Section of testicle graft showing scattered seminiferous tubules in the 

 abdomma muscles of female rat. Graft had persisted for 225 days b ore i 

 removal from the female (6. AIBI-I). Tissue transplanted from ma e to 

 female at age of thirty days, m., muscle; .^., seminiferous tubules 



THE JOURN.^L OF EXPERIMENTAL ZOOLOGY, VOL. 28. NO. 2 



