70 



T.\BLE 53. — Result.^ of digeMion e.vperiment No. 592. 



During this experiment the subject eliminated 1,619 grams urine, 

 containing- 16,84 grams nitrogen. The average nitrogen balance per 

 day was therefore as follows: Income in food 10.58 grams; outgo in 

 urine 4.21 grams; and in feces 1.17 grams; implying a gain of 5.20 

 grams nitrogen, corresponding to 32.50 grams protein. 



DIGESTION EXPERIMENT NO. 593. 



Kind of food. — Macaroni and milk. 



Subject. — Man No. 2. Student 22 years old, engaged tbree hours 

 per day at manual labor. 



Weight.— Xi the beginning of the experiment 183 pounds; at the 

 clo.se 182 pounds. 



Duration. — Four days, with twelve meals, beginning with breakfast 

 February 21, 1905. 



Table 54. — Results of digestion experiment No. 593. 



