DIGESTIBILITY AND AVAILABILITY OF FOOD. 



185 



19.2 grams; outgo in urine, 17.9 grams; and in feces, 1.4 

 grams; implying a loss of .1 gram nitrogen, corresponding to 

 .6 gram protein. 



DETAILS OF DIGESTION EXPERIMENT NO. 38. 



This experiment represents the period of metabolism experi- 

 ment No. 5 spent in the respiration chamber. It began with 

 breakfast May 4, 1897, ^^^ continued four days, with 12 meals. 

 The subject, E. O., weighed with clothes 69.3 kilos at the be- 

 ginning, and 68.8 kilos at the end of the experiment. During 

 the experiment he remained as quiet as practicable. 



Table 85. 

 Digestion experiment No. j8. 



During this experiment the subject eliminated 9120.8 grams 

 urine, containing 72.3 grams nitrogen. The average nitrogen 

 balance per day was therefore as follows: Income in food, 19. i 

 grams; outgo in urine, 18. i grams, and in feces, 1.7 grams; 

 implying a loss of .7 gram nitrogen, corresponding to 4.2 

 grams protein.. 



