Evening.—Beer 750 grams.
| Food. | Grams. | Per cent Nitrogen. | Total Nitrogen. | ||||
|---|---|---|---|---|---|---|---|
| Roll | 118 | × | 1.64 | = | 1.935 | grams. | |
| Orange | 80 | × | 0.20 | = | 0.160 | ||
| Coffee | 150 + 150 + 150 = | 450 | × | 0.06 | = | 0.270 | |
| Cream | 50 + 100 + 50 = | 200 | × | 0.45 | = | 0.900 | |
| Sugar | 25 + 18 + 16 = | 59 | × | 0.00 | = | 0.000 | |
| Butter | 23 + 15.5 + 15 = | 53.5 | × | 0.15 | = | 0.080 | |
| Bread | 59 | × | 1.66 | = | 0.979 | ||
| Tomato sauce | 75 | × | 0.23 | = | 0.173 | ||
| Onions | 107 | × | 0.30 | = | 0.321 | ||
| Celery soup | 100 | × | 0.48 | = | 0.480 | ||
| Potato | 100 | × | 0.26 | = | 0.260 | ||
| Farina croquettes | 109 | × | 0.74 | = | 0.807 | ||
| Prunes | 105 | × | 0.17 | = | 0.179 | ||
| Hamburg steak | 63 | × | 3.96 | = | 2.495 | ||
| Potato | 100 | × | 0.46 | = | 0.460 | ||
| Soup | 150 | × | 0.19 | = | 0.285 | ||
| Bread | 32 | × | 1.82 | = | 0.582 | ||
| Spinach | 50 | × | 0.54 | = | 0.270 | ||
| Cream pie | 79 | × | 0.93 | = | 0.735 | ||
| Beer | 750 | × | 0.069 | = | 0.518 | ||
| Total nitrogen in food | 11.889 | grams. | |||||
| Total nitrogen in urine | 9.040 | ||||||
| Fuel value of the food | 2822 calories. |
NITROGEN BALANCE.—Stapleton.
| Nitrogen Taken in. | Output. | ||||||
|---|---|---|---|---|---|---|---|
| Nitrogen in Urine. | Weight of Fæces (dry). | ||||||
| May | 18 | 12.127 | grams. | 9.67 | grams. | 39.6 | grams. |
| 19 | 8.555 | 8.58 | 34.5 | ||||
| 20 | 13.832 | 9.51 | 65.3 | ||||
| 21 | 13.448 | 9.64 | 17.8 | ||||
| 22 | 12.024 | 9.56 | 11.4 | ||||
| 23 | 8.427 | 8.03 | 27.7 | ||||
| 24 | 11.889 | 9.04 | |||||
| 196.3 | grams contain 7.08% N. | ||||||
| 80.302 | 64.03 | + | 13.898 | grams nitrogen. | |||
| 80.302 | grams nitrogen. | 77.928 | grams nitrogen. | ||||
| Nitrogen balance for seven days | = | +2.374 | grams. |
| Nitrogen balance per day | = | +0.339 | gram. |
Average Intake.
| Calories per day | 2809. |
| Nitrogen per day | 11.47 grams. |
With this subject, the total intake of nitrogen for the seven days’ period was 80.302 grams. The output of nitrogen through the urine amounted to 64.03 grams, while 13.898 grams were passed out through the fæces, making a total output of 77.928 grams of nitrogen. This shows a plus balance of 2.374 grams of nitrogen for the seven days, indicating a gain to the body of 0.339 gram per day. The fuel value of the food averaged 2809 calories per day, while the daily excretion of metabolized nitrogen averaged 9.14 grams. This is in close agreement with the average daily excretion of nitrogen through the urine of this subject for the last two months of the experiment, viz., 9.00 grams of nitrogen.