INGESTION OF PROTEIN DIETS. 



295 



TABLE 225. H. R. D., May 9, 1906. Sitting. (2-hour periods.) 

 Gluten bread and skim milk: 



Amounts, 100 grams gluten bread, 220 grama skim milk; nitrogen, 15.42 grams; total energy, 



622 cals. 

 Fuel value: Total, 487 cals.; from protein, 84 p. ct. ; from fat, 2 p. ct. ; from carbohydrates, 



14 p. ct. 



Basal values (February 6 to April 20, 1906): CO 2 , 47 grams; O 2 , 42 grams; heat, 146 cals. 

 Nitrogen in urine, 0.44 gram per 2 hours (May 9, 1906). 



'Heat eliminated not corrected for small change in body-weight or for change in body-tem- 

 perature. 



TABLE 226. H. R. D., May 17, 1906. Sitting. (2-hour periods.) 



Gluten bread and skim milk: 



Amounts, 153 grams gluten bread, 499 grams skim milk; nitrogen, 24.47 grams; total energy, 



1,023 cals. 

 Fuel value: Total, 809 cals.; from protein, 81 p. ct. ; from fat, 2 p. ct. ; from carbohydrates, 



17 p. ct. 



Basal values (February 6 to April 20, 1906): CO 2 , 47 grams; O 2 , 42 grams; heat, 146 cals. 

 Nitrogen in urine, 0.58 gram per 2 hours (May 17, 1906). 



1 Subject ate food in 39 minutes. 



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



at the end of the experiment. The maximum in nitrogen excretion 

 was obtained in the fourth period, but although there was a tendency 

 for it to decrease thereafter the output was very large even in the sixth 

 period, showing a considerable metabolism of nitrogenous material. 

 The ingestion of 24.47 grams of nitrogen, therefore, had a pronounced 



