49 
During- this experiment the subject eliminated 3,750 grams urine. 
containing 0.553 per cent or 20.73 grams nitrogen. The average 
nitrogen balance per day was therefore as follows: Income in food 
♦3.18 grams; outgo in urine 5.18 grams, and in feces 1.86 grams: indi- 
cating a loss of 0.86 gram nitrogen, corresponding to 5.38 grams 
protein. 
During the first day of this test the subject ground the almonds to a 
tine paste, thereby causing a separation of the oil. This pasty mass, 
closely resembling peanut butter, did not digest well. During- the suc- 
ceeding three days he ate the nuts without grinding, and thev seemed 
to digest more easily. The diet was appetizing and very satisfactory 
to the subject, who believed that he could follow it much longer than 
four days and also work hard, both physically and mentally. 
The results of the experiment, however, do not bear out this belief. 
The nitrogen equilibrium was not kept up, the energy utilized was 
very low. and there was a slight loss of body weight. 
DIGESTION EXPERIMENT NO. 395. 
Kind "ff<><>d. — Bananas and walnuts. 
Subject.— €. P. H. 
Weig/U {with clothes).- — At the beginning of the experiment 63.2 
kilograms (139.5 pounds), and at the close of the experiment 62.1 
kilograms (137 pounds). 
Duration. — Four days, with six meals, beginning with first meal 
December 18, 1901. 
Table 31. — Results of digestion experiment No. 
Sam- 
ple 
No. 
Kind of food. 
Weight 
of ma- 
terial. 
Total 
organic 
matter. 
Nitro- 
gen. 
Pro- 
tein. 
Fat. 
Carbon j 
drates. 
Ash. 
Heat of 
combus- 
tion. 
Sugar. 
starch. 
etc. 
Fiber. 
212a 
223a 
Bananas 
Walnuts 
Total 
Feces I water-free) 
Amount digested. 
Per cent digested. 
Gram-<. 
6,180 
1,050 
Grams. 
859. 07 
391.33 
Grams. 
9.99 
16.34 
Grams. 
62.41 
102. 17 
Grains. 
9. 27 
261.65 
Grams. 
767. 00 
19.74 
Grams. 
20. 39 
7.77 
Grams. 
31.52 
7. 98 
Calories. 
3,637 
3. 0-58 
7. 230 
1,250.40 
26. 33 
164.58 
270. 92 
786.74 
2s. 16 
39. 50 
6. 695 
45a 
164.0t> 
142. 14 
1,106.26 
88.60 
6.36 
19. 97 
75. 85 
39.73 
124. 85 
75. B5 
41 . 25 
229. 67 
-1.7'.' 
48.81 
737. 93 
93. SO r 
12. 35 
15.81 
.56.12 
21.92 
17.58 
44. 52 
9:30 
5, 76-5 
156 
Energy of food 
oxidized in the 

5,609 
Percent of energy 
S3. 78 
During this experiment the subject eliminated 2,790 grams urine, 
containing 0.644 per cent or 17. '.'7 grams nitrogen. The average 
nitrogen balance per day was therefore as follows: Income in food 
6.58 grams: outgo in urine 4.49 gram> and in feces 1.59 grams; 
indicating a loss of 0.50 gram nitrogen, corresponding to 3.13 grams 
protein. 
1453— No. 132—03 4 
