290 



Sm; 



CARL 



MOORE. 



10 

 880 

 840 

 MO 

 760 

 720 

 680 

 640 

 I". 00 

 560 



MO 



360 

 320 



200 



160 



no 



sp. $ 



fast 3 

 N 

 N 



flO 



4-0 



90 



IgO 



30O 



350 



360 



FIG. i. Growth curves for normal males (A 7 ^), normal females (A'J), 

 totally castrated males (Ca^^ <^), and totally spayed female (5> $), guinea 

 pigs for one year from birth. The curves were constructed from the average 

 weight of each group, on 30, 60, 90 days, etc., as given in Table I. 



