41 



25.39 grams, and in feces, 2.57 grams, implying a gain of 0.25 gram 

 nitrogen, corresponding to 1.6 grams protein. 



DIGESTION EXPERIMENT NO. 320. 



Kind of food. — Milk, and bread made from entire-wheat flour. 



Subject. — Man No. 3, as in experiment No. 311. 

 Weight. — At the beginning of the experiment, 15<J pounds; at the 

 close, 151.5 pounds. 



Duration. — Four days, with twelve meals, l)eginning with breakfast 

 May 5, 1902. 



Table 29. — ResuJl.<^ of <Jigestiou experiment No. 3S0. 



a Calculated according to the assumption that 90 per cent of the fat in the bread is digestible. 



During this experiment the subject eliminated 5,476.6 grams urine, 

 containing 88.17 grams nitrogen. The total nitrogen balance per day 

 was therefore as follows: Income in food, 27.44 grams; outgo in urine, 

 22.04 grams, and in feces 1.96 grams, imph^ng a gain of 3.44 grams 

 nitrogen, corresponding to 21.5 grams protein. 



DIGESTION EXPERIMENT NO. 321. 



Kind of food. — Milk, and bread made from graham flour. 



Svhject. — Man No. 1, as in experiment No. 309. 



Weight. — At the beginning of the experiment, 169.75 pounds; at the 

 close, 170 pounds. 



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

 May 16, 1902. 



