DIGESTIBILITY AND AVAILABILITY OF FOOD. 



203 



DETAILS OF DIGESTION EXPERIMENT NO. 150. 



This experiment formed part of metabolism experiment No. 

 26, which was a rest experiment with an excess of fat in the 

 diet. It began with breakfast February 14, 1900, and con- 

 tinued three da3^s. The subject, J. F. S., weighed in un- 

 derclothing 64 kilos at the beginning and at the end of the 

 experiment. 



Table 103. 

 Digestion experiment No. 1^0. 



During this experiment the subject eliminated 4083.0 grams 

 urine, containing 46.2 grams nitrogen. The average nitrogen 

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

 15.9 grams; outgo in urine, 15.3 grams, and in feces, i.i 

 grams; implying a loss of .5 gram nitrogen, corresponding to 

 3.3 grams protein. 



