130 



FOOD INGESTION AND ENERGY TRANSFORMATIONS. 



TABLE 55. J. J. C., March 25, 1910. Sitting. 



Chewing gum. 1 Nitrogen in urine, 0.49 gram 2 per hour. 



Basal values per hour (Mar. 25, 1910): CC>2, 25.5 grams; Oz, 21 grams; heat,* 79 cals. ; respira- 

 tory quotient, 0.88. Nitrogen in urine, 0.30 gram per hour. 



1 Amount not recorded. 



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

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

 4 Computed from result for actual period of 1 hour by deducting basal value equivalent to 12 

 minutes at beginning of experiment when subject was not chewing. 



TABLE 56. V. G., December 19, 1910. Lying. 



Chewing gum. 1 Nitrogen in urine, 0.32 gram 2 per hour. 



Basal values per hour (Dec. 19, 1910) : COj, 25.5 grams; Oa, 22 grams; heat,' 67 cals.; respiratory 

 quotient, 0.85. 



'Amount not recorded. 



J Sample included amount for 4 hours, without food, preceding the periods of chewing. 

 3 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 13 minutes at beginning of experiment when subject was not chewing. 



