Kind of food: 
ee. @.). 
EXPERIMENTS ON DIGESTION OF FOOD BY MAN. 
DIGESTION EXPERIMENT NO. 39. 
Subject: 
Mixed diet. 
TOT 
Laboratory janitor 
Weight (without clothes): At beginning, 68.6 kilos; 









at end, 66.2 kilos. Duration: Four days, with twelve meals. 
TABLE 36. 
a Be ne = ol Ae 
38 2¢ I rps yet a0: Bae Gok te 
A eg Foop MATERIALS. ce © = 3x | re Z BES ae 
au = $4 | ae ie mse 
4 evi, OA 
lea Grams| Grams Grams Grams|Grams| Cal. 
27o0.) eel, fried, - - - 400] 154) T1g }. 35.) <= 8 968 
2788 | Ham, deviled, - = DLO LL 2 ak 35 Ole. alee 9 QI4 
2790 | Eggs, - 2 - BOS. Mine 2 teen Io ada Z 4ol 
2793 | Butter, - - - - 300 | 265 3 | 262 | — els ee chee 
2799 | Milk,” - - - = 3} 34004704 102+)" 184 AetoO 245 SiS 
2803 | Bread, white, - - = wie COO}. OSS. | “149 20") 2510 p22) 14572 
2786 | Sugar, - - - - 200| 200; — — 200 | — 793 
2791 | Beans, baked, - - 00H. 134 | 130 2 96 9 611 
2792 | Pears, canned, - VECO 221 4 yay ap i i gII 
Total, - - ~"- 8218 | 2603.) 477.) O15 % T5113) 4934" 114734 
2507 | Feces,’ - - - - Aoi Aas tae ray by 29 26 23 768 
— | Am’t (digested) available, — | 2491 | 430 | 586 | 1475. 61 |13966 
| Bla Wi Oe ee eae 
— Per cent. available, - = "105 67 | 901 1.0545) Oi Outse.0 ho 
- Estimated heat of combus- 
tion of urine, 2 - -— —- — — —- — 533 
— Energy of food oxidized in 
’ the body, - - - — |—}; — | — | — | — 113428 
% 
Pammick. cent. cnersy available, |) —— 9} — 9) fh ee OT 2 









Remarks.—This experiment, which represents the preliminary period of 
metabolism experiment No. 6, began with breakfast May 14, 1897, and con- 
tinued four days. 
either riding over country roads or working a stationary machine indoors, 
work was probably harder than that to which he was accustomed. 
of protein in the food per day was the same as in the preceding experiment, but 
the fuel value was largely increased. The following table shows the income and 
outgo of nitrogen. 
to be abnormal. 
Income and outgo of nitrogen in digestion experiment No.39. 
The subject was at work several hours each day on a bicycle, 
His 
The amount 
The urine for the first day was discarded as it appeared 















2 Cae) | Bui 6. | Garn-tor Loss — 
| "bee | Nitrogen in ae 2S 
PERIOD. y= | Urine. Se | 5 Nitro- | Protein. 
cae | 7, © re 2 SEN INE Ores. 
1897. Grams. PerCt. Grams, |Grams| Grams. | Grams. | Grams. 
Mie Ory A MTA, M., | 771 T.50 | 12.3.) 1.9 | 19.t |. 4.9) +3026 
May 16-17,7A.M.-7A.M.,| 734 |1.40| 10.3 | 1.9 | 19.1 | + 6.9| +43.1 
| May17-18, 74.M.-7 A. M., | 1728 | ROTEL Ta LOA LO, lade e Oe 
ee tre 13298 1 38.09 5a 74) 5723. bo 1S- 30 85.t 
12 
