DIGESTIBILITY AND AVAILABILITY OF FOOD. 



225 



DETAILS OF DIGESTION EXPERIMENT NO. 204. 



This experiment was a part of metabolism experiment No. 

 47, a work experiment with an excess of carbohydrates in the 

 diet. It began with breakfast May 7, 1901, and continued 

 four days. The weight of the subject, J. C. W., in under- 

 clothes was 79.3 kilos at the beginning and 79.5 kilos at the 

 end of the experiment. 



Table 125. 

 Digestion experiment No. 20^. ' 



During this experiment the subject eliminated 6425.9 grams 

 urine, containing 64.3 grams nitrogen. The average nitrogen 

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

 17.4 grams; outgo in urine and perspiration, 16.3 grams, and 

 in feces, 2.7 grams; implying a loss of 1.6 grams nitrogen, cor- 

 responding to lo.o grams protein. 



