GONADS AND THE PITUITARY BODY 



There is some evidence that the greater potency of the pi- 

 tuitary of the female rat, less than 20 days old, may depend 

 upon the lack of activity of the ovaries. If very young rats 



TABLE V 



The Gonadotropic Potency of the Anterior Pituitary 

 IN Relation to Sex 



is not great (about 25 per cent). 



are castrated or spayed, there is interference with the early 

 development of the male accessory organs but not with that 

 of the female (Wiesner, 1935). If gonadectomy is performed 



[143] 



