DIGESTIBILITY AND AVAILABILITY OF FOOD. 



191 



DETAILS OF METABOLISM EXPERIMENT NO. 46. 



This experiment, representing the period of metabohsm ex- 

 periment No. 9 passed within the respiration calorimeter, 

 began with breakfast January 10, 1898, and continued four 

 days. The subject, E. O., weighed without clothes, 68.4 kilos 

 at the beginning and 67.2 kilos at the end. As this was a 

 rest experiment the subject had as little muscular activity as 

 practicable. 



Table 91. 

 Digestion experiment No. 4.6. 



During this experiment the subject eliminated 6702.4 grams 

 urine, containing 73.7 grams nitrogen. The average nitrogen 

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

 19. 1 grams; outgo in urine, 18.4 grams, and in feces, 1.3 

 grams; implying a loss of .6 gram nitrogen, corresponding to 

 3.6 grams protein. 



