DIGESTIBII.ITY AND AVAILABILITY OP FOOD. 



223 



DETAILS OF DIGESTION EXPERIMENT NO. 202. 



This experiment was preliminary to metabolism experiment 

 No. 46. It began with breakfast April 29, 1901, and continued 

 four days. The subject, J. C. W., weighed in underclothes 

 at the end of the experiment 79.6 kilos. He took a regular 

 amount of muscular exercise each day during the period. 



Table 123. 

 Digestion experiment No. 202. 



During this experiment the subject eliminated 7317.5 grams 

 urine, containing 60.1 grams nitrogen. The average nitrogen 

 balance per day was therefore as follows: Income in food, 16.8 

 grams; outgo in urine, 15.0 grams, and in feces, 2.1 grams; 

 implying a loss of .3 gram nitrogen, corresponding to 1.9 grams 

 protein. 



