METABOLISM DURING CHEWING. 



131 



TABLE 57. V. G., January 2, 1911. Sitting. 



Chewing gum (about 6 grams). Nitrogen in urine, 0.39 gram 1 per 45 minutes. 

 Basal values per 45 minutes (January 2, 1911): CC>2, 22.5 grams; Oz, 19 grama; heat, 5 62 cals. 

 respiratory quotient, 0.87. 



'Sample included amount for about 3 hours, without food, preceding and following the periods 



of chewing. 

 *Heat eliminated corrected for change in body-weight, but not for change in body-temperature. 



TABLE 58. T. M. C., January 3, 1911. Sitting. 



Chewing gum. 1 Nitrogen in urine, 0.27 gram 2 per 45 minutes. 



Basal values per 45 minutes (January 3, 1911): CC>2, 14 grams; Oj, 13 grams; heat, 3 47 cals.; 

 respiratory quotient, 0.79. 



'Amount not recorded. 



2 Sample included amount for about 2f hours, without food, preceding the periods of chewing. 

 'Heat eliminated corrected for change in body-weight, but not for change in body-temperature. 

 'Computed from result for actual period of 45 minutes by deducting basal value equivalent 

 to 7 minutes at beginning of experiment when subject was not che wing. 



