EFFECTS OF GONAD GRAFTS IN CHICKS 



grafted piece had increased three to ten times in diameter. In 

 table 1 are recorded a number of measurements of the size 

 attained by grafted pieces of ovary, testis, and other organs. 



TABLE 1 

 Length and width of grafts of ovary, testis, and other organs implanted on the chorio- 

 allantoic membrane of the chick embryos 



In table 2 the sizes attained by ovary and testis grafts are com- 

 pared. From these tables it is evident that testis grafts grow 

 somewhat larger than ovary grafts and that grafts of other 

 organs undergo a greater growth than grafts from either gonad. 



