380 



Studies on the Endocrine Glands 



Chaut 13. — Amount of CO2 excretion in grams. 



5 



^5 



^■0 



3 5 



3 



6 



M. = male rats ; F. = female rats ; C. = control male rats. 

 1, all the animals fed with rusks alone; 2, COo estimated on third day of parathyroid and 

 rusk feeding; 3, COo estimated on sixth day of parathyroid and rusk feeding ; 4, CO2 estimated 

 during rusk feeding"; 5 and 6, COo estimated on fifth and tenth days respectively of thyroid and 

 rusk feeding. The control rats were fed throughout with rusks alone (see Tables IX., X., 

 and XI.). 



Chart 14. — Amount of COo excretion in grams. 



s 



3 



Ca. = castrated rats ; N. = normal rats. 



'C(, CO., estimated before castration ; b, CO., estimation twenty-two days after 



castration ; c, CO.^ estimation forty-eight days after castration. 



