DIGESTIBILITY AND AVAILABILITY OF FOOD. 



217 



DETAILS OF DIGESTION EXPERIMENT NO. 1 96. 



This experiment was a part of metabolism experiment No. 

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

 diet. It began with breakfast February 26, 1901, and con- 

 tinued four days. The subject, J. C. W., weighed in under- 

 clothes 78.8 kilos at the beginning and 77.8 kilos at the end of 

 the experiment. 



Table 117. 

 Digestion experiment No. ig6. 



During this experiment the subject eliminated 3329.6 grams 

 urine, containing 67.3 grams nitrogen. The average nitrogen 

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

 17. 1 grams; outgo in urine and perspiration, 17. i grams, and 

 in feces, 2.2 grams; implying a less of 2.2 grams nitrogen, cor- 

 responding to 13.6 grams protein. 



