DIGESTIBILITY AND AVAILABILITY OF FOOD. 



193 



DETAILS OF METABOLISM EXPERIMENT NO. 50. 



This experiment, representing the part of metabolism experi- 

 ment No. 1 1 passed in the chamber of the calorimeter, began 

 with breakfast May 22, 1898, and continued four days. The 

 subject, K. O., weighed without clothes, 70 kilos at the begin- 

 ning and 68 kilos at the end. He worked eight hours each day 

 upon the stationary bicycle. 



Table 93. 

 Digestion experiment No. 50. 



During this experiment the subject eliminated 3847.1 grams 

 urine, containing 71.5 grams nitrogen. The average nitrogen 

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

 19.8 grams; outgo in urine and perspiration, 18. i grams, and 

 in feces, 2.2 grams; implying a loss of .5 gram nitrogen, cor- 

 responding to 3.0 grams protein. 



