12 
COMPOSITION OF FECES AND TJRINE OBTAINED IN DIGESTION 
EXPERIMENTS. 
The composition of the water-free feces from the digestion experi- 
ments reported beyond (pp. 35-68) is given in Table 3, while Table 
4 records the amount, specific gravity, and percentage and amount of 
nitrogen of the urine, the data in both cases being arranged accord- 
ing to subjects. 
Table 3. — Composition of water-free substance of feces. 
Lab- 
Whence obtained. 
Weight 
of feces 
per 
day. 
Nitro- 
gen. 
Pro- 
tein. 
Fat. 
Carbohydrates. 
Ash. 
Heat of 
ora- 
torv 
No. 
Sugar, 
starch, 
etc. 
Crude 
fiber. 
combus- 
tion per 
gram. 
15 
SUBJECT AW S. M. 
Experiment No. 388: 
First day 
Grams. 
28.85 
15.00 
25.40 
58.50 
Per ct. 
3.79 
4.05 
4.50 
3.49 
Per ct. 
23.70 
25.31 
28. 15 
21.83 
Per et. 
22.30 
22. 56 
17.72 
26. 74 
Per ct. 
29.27 
26.22 
30.38 
28.99 
Per ct. 
11.46 
12.67 
9.35 
10.59 
Per ct. 
13.27 
13.24 
14.40 
11.85 
Calories. 
5 434 
16 
Second day 
5.290 
17 
Third day 
5.104 
18 
Fourth da v 
5.515 
Average 
Experiment No. 389: 
First day 
18a 
31.94 
3.96 
24.75 
22. 33 
28.71 
11.02 
13.19 
5.336 
19 
57.40 
40.28 
20.82 
34.34 
3.88 
3.09 
2.89 
3.81 
24.23 
19.31 
18.08 
23.80 
29.91 
26.83 
45. 83 
36.78 
26.90 
34.89 
17.76 
18.55 
6.75 
5.52 
2. 54 
5. 32 
12.21 
13.42 
15. 79 
15.55 
5.690 
20 
21 
'2'2 
Second dav 
Third day 
5. 982 
6.076 
5.824 
22a 
38.21 
3. 42 
21.36 
34.84 
24.53 
5. 03 
14.24 
5. 893 
Experiment No. 390: 
First dav 
23 
31.81 
63.06 
30. 54 
43.10 
4.20 
3.57 
3. 55 
3.56 
26.22 
22. 34 
22. 18 
22.26 
28.21 
30.06 
29. 25 
36.07 
21.23 
23. 46 
27.83 
20.94 
11.07 
9. 56 
7.34 
7.57 
13.27 
11.58 
13.40 
13.16 
5.586 
21 
Second dav 
5.516 
25 
Third dav 
5.434 
26 
Fourth dav 
5.839 
Average 
Experiment No. 393: 
First dav 
26a 
42.13 
3.72 
23. 25 
30.90 
23. 37 
8.89 
13.60 
5.594 
34 
88.50 
11.20 
34. 78 
15. 75 
4.43 
5.17 
4.72 
5.32 
27.69 
32. 29 
29. 50 
33. 26 
31.32 
37.87 
33.21 
33.53 
17.90 
12. 75 
15.50 
9.58 
8.58 
4.69 
10. 15 
11.10 
14.51 
12. 40 
11.64 
12. 53 
5.659 
35 
Second dav 
6.041 
36 
Third dav 
5.885 
37 
Fourth dav 
5.902 
37a 
37.56 
4.91 
30. 69 
.33. 98 
13. 93 
8.63 
12. 77 
5. 872 
Experiment No. 394: 
First dav 
38 
60.30 
53. 50 
85.00 
34.09 
3.82 
3.02 
3.39 
3.29 
23.89 
18.90 
21.17 
20. 57 
26.39 
25. 17 
20. 98 
21.70 
21. 94 
39. 24 
45.09 
45. 45 
10.40 
5.29 
3.47 
3. 63 
14.38 
11.40 
9.29 
8.65 
5.478 
39 
Second day 
5.828 
40 
Third dav 
5.676 
41 
Fourth dav 
5.722 
41a 
58.22 
3.38 
21.13 
23. 56 
38.68 
5.70 
10.93 
5.676 
Experiment No. 396: 
First dav 
46 
53. 30 
58.80 
24. 20 
48.18 
4.01 
3.78 
4.18 
3.98 
25. 07 
23. til 
26. 14 
24. 87 
20.86 
23. 29 
28. 58 
29.06 
26. 15 
25. 27 
18.90 
17.34 
17.43 
18.86 
18.47 
21.81 
10.49 
8.94 
7.91 
6.92 
5.501 
47 
Second dav 
5.610 
48 
Third dav 
5. 913 
49 
Fourth dav 
6.120 
Average 
49a 
46.12 
3.99 
24. 93 
25. 45 
21.92 
19.14 
8.56 
5.786 
Experiment No. 398: 
First dav 
54 
39. 59 
33.69 
49.79 
52.38 
3.49 
3.48 
2.93 
3.12 
21.84 
21. 75 
18.30 
19.48 
35.14 
32.15 
25. 67 
27.85 
17.40 
17.54 
21.58 
21.67 
16.39 
19.02 
26.47 
23.44 
9.23 
9.54 
7.98 
7.56 
6.027 
55 
Second dav 
5.908 
56 
Third dav 
5.657 
57 
Fourth dav 
5.778 
Average 
57a 
43.86 
3.25 
20.34 
30.20 
19.55 
21.33 
8.58 
5.842 
Experiment No. 401: 
First dav 
66 
53. 80 
55.28 
41.17 
70. 98 
5. 27 
4.88 
5.48 
5.94 
32. 91 
30.53 
34.26 
37.10 
25.02 
23.36 
25.16 
21.52 
13.55 
18.61 
15. 39 
12.62 
12.88 
15. 72 
14.11 
17.02 
15.64 
11.78 
11.08 
11.74 
5.346 
67 
5.574 
68 
Third dav 
5.810 
69 
Fourth day 
5.630 
69a 
55. 31 
5.39 
33.70 
23. 77 
15. 04 
14.93 
12.56 
5.590 
