16 



Metabolism of Healthy Man. 



6.38 grams of nitrogen and 1496 calories of energy. Of the nitrogen, 4.06 

 grams were in the milk and 2.32 grams were in the prepared cereal. Thus 

 there was a predominance of protein of animal nature. As the experiment 

 could last at best but some 30 hours and there could be no satisfactory sepa- 

 ration of feces, it was not considered advisable to make a chemical investigation 

 of the foods, so the data regarding the percentage composition and heat of 

 combustion per gram are in part assumed and in part determined. 



Table 2. Percentage composition and heat of combustion of food 

 Metabolism experiment No. 101. 



1 Actually determined during this experiment. 



2 Values obtained from a later experiment. 



Table 3. Weight, nitrogen, and energy of food- 

 Metabolism experiment No. 101. 

 [Amounts consumed by the subject.] 



Table 4. Total nutrients and energy of food 

 Metabolism experiment No. 101. 



These results are given in table 2. Two meals were taken on March 24, 

 dinner at l h 16 m p. m. and supper at 7 p. m. A subdivision of the food, show- 

 ing the nitrogen and energy of these two meals, is given in table 3. 



The total nutrients and energy of the food were obtained for the subsequent 

 computation of the total metabolism and are given in table 4 as the results 

 for 24 hours. 



