I9I3] 



G. O. Higley 



395 



condition of each subject, mouth temperature and pulse were also 

 taken and recorded. This routine at the laboratory was followed 

 at 12 M. and 5 P. M. 



TABLE I 



Data showing the excretion of carbon dioxide by subjects A, B and C, 



in milligrams per minute. 



Results. The results of this series of experiments are shown 

 in Table i, in milligrams of carbon-dioxide excretion per minute. It 

 will be noted that A's average for the midday experiments is con- 

 siderbly higher than that for the morning and evening experiments. 



