EXPERIMENTS ON DIGESTION OF FOOD BY MAN. 165 
DIGESTION EXPERIMENT NO. 43. 
Kind of food: Mixed diet. Subject: Laboratory janitor 
(H. O.). Wezght (with clothes): At beginning, 72.1 kilos; 
atend, 71.6 kilos. Duration: Four days, with 12 meals. 
















TABLE 40. 
Me Mei. id 
) ra | i <M z 
sé ee} fe | dt) . | 68) 2 pees 
i) Foop MarTErRIALs. ae | O8 | &y s a eh SP heed ee es 
ag pa lge ja. | “ |Oh) * |res 
4 Soe OA 
; Grams Giatcs| Craig Grams|Grams Grams Cal. 
2820 | Beef, fried, - : : 600] 227| 165 | 62| —/ 13 | 1488 
2510.) Egys; . - : : <i 413)) 107) 58) 50 ae 840 
2827 | Butter, - - - - 140} 121 2° \eTi9Q | "a SAL Ooo 
a5e00)-Milk, — - - - - | 3400} 489] II9 | 174 | +199) 21 | 3068 
2814 | Bread, rye, - 2 Se S10) 72678 131 B 16670 |. 227 + 4632 
aS Sugar, - - - = 160; 160) —.| — 160| — 636 
2816 | Beans, baked, - - SOO s138")) 634 2 OS. att 620 
2822 | Apples, - - site(s 800} II4| 2 At 108 je 2 ef 406 
Total, “ : - | 7323 | 2082| 511 | 416 | 1233| 78 |11840 
mo24.) Feces, - - a? | 442 99| 44 23 | 32 21 632 
— | Am’t faeed) available, — | 1983| 467 | 393 | I201| 57 |11208 
Le Wee ht BIA a eee 
— Per cent. available, - =) OS. 3 OL. 4 (94:5 Opaque ae g ea 
— | Estimated heat of combus- | | | | | 
tion of urine, - — | — — — att cai 584 
— | Energy of food oxidized i in | | | 
the body, - tar —- —)> —)|)—)}] —  — (10624 
| g, 
| A 
mee cent..cnergy available, |r} | a 80.7 








Remgrks.—This experiment, which represents the preliminary period of 
metabolism experiment No. 8, began with breakfast November 8, 1897, and 
continued four days. ‘The subject took but little active exercise during this 
period. The diet was slightly larger in amount than during the previous metab- 
olism experiment in which it was found that the subject lost fat. The following 
table shows the income and outgo of nitrogen in this experiment: 
Income and outgo of nitrogen in digestion experiment No. 43. 















enh Sv ee Gain-t or Loss — 
ye Nitrogen in | %9 we ltt ea tee aa Se 
PERIOD. wD Urine. Be oe Nitro- | Protein. 
Bn 7S Yet, Ae gen. |N.X6.25. 
1897. Grams. |PerCt.| Grams. |Grams_ Grams. | Grams. | Grams. 
owas a. M.—-7°A, M., | 1640 | .63| 10.3 | 1.8 20.5 | -+- 8.4)+ 52.5 
hoven-G, 774, M,—7'A, M., | 1246 | 1.20] 15.0} 1.7 °|20.4 |-+ 3.7 \-+ 23.1 
Pin 0-707 8. M.—7 A.M., | 1012 | 1.32) 13.4 | 1.8 | 20/5 | + 5.3|+ 33.1 
Seen 7 7AM —7iA. M., | 1745 |1.03| 18.0)| 1.7 |.20.4 )- ..7|+° 4.4 
flotala- <~ 3 - 504g re) SO, 7b oO Naot Oe hr Lo vl Piet layer 

