In this seven days’ balance trial, there were taken in with the food 76.674 grams of nitrogen, with an output of 67.47 grams of nitrogen through the urine and 12.571 grams through the fæces, thus showing a minus balance of 3.367 grams of nitrogen for the seven days. The fuel value of the food averaged 2486 calories per day, while the average daily excretion of metabolized nitrogen amounted to 9.63 grams. Schenker’s daily nitrogen excretion for the last two months of the experiment averaged 9.82 grams. Presumably, the slight minus balance of nitrogen was due to the relatively small fuel value of the food, which doubtless was not quite sufficient for the body-weight, and the degree of bodily activity then prevailing.
With G. W. Anderson, a plus balance was obtained as follows:
G. W. ANDERSON.
Wednesday May 18, 1904.
Breakfast.—Banana 103 grams, coffee 150 grams, sugar 42 grams, cream 125 grams, fried rice 45 grams, baked potato 92 grams, roll 65 grams, butter 11 grams.
Lunch.—Soup 150 grams, farina croquette 88 grams, sweet potato 206 grams, string beans 75 grams, bread 62 grams, butter 15.5 grams, coffee 150 grams, sugar 14 grams, cream 30 grams.
Dinner.—Consommé 200 grams, bread 59 grams, butter 20 grams, Hamburg steak 109 grams, mashed potato 150 grams, coffee 200 grams, cream 30 grams, sugar 24 grams, spinach 100 grams, apple pie 150 grams.
| Food. | Grams. | Per cent Nitrogen. | Total Nitrogen. | ||||
|---|---|---|---|---|---|---|---|
| Butter | 11 + 15.5 + 20 = | 46.5 | × | 0.15 | = | 0.070 | grams. |
| Sugar | 42 + 24 + 14 = | 80.0 | × | 0.00 | = | 0.000 | |
| Banana | 103.0 | × | 0.23 | = | 0.237 | ||
| Cream | 125 + 30 + 30 = | 185.0 | × | 0.46 | = | 0.851 | |
| Fried rice | 45.0 | × | 0.75 | = | 0.338 | ||
| Roll | 65.0 | × | 1.66 | = | 1.079 | ||
| Potato | 92.0 | × | 0.39 | = | 0.359 | ||
| Coffee | 150 + 150 + 200 = | 500.0 | × | 0.06 | = | 0.300 | |
| Bread | 62.0 | × | 1.60 | = | 0.992 | ||
| Soup | 150.0 | × | 0.41 | = | 0.615 | ||
| Farina croquette | 88.0 | × | 1.09 | = | 0.959 | ||
| Sweet potato | 206.0 | × | 0.32 | = | 0.659 | ||
| String beans | 75.0 | × | 0.34 | = | 0.255 | ||
| Bread | 59.0 | × | 1.80 | = | 1.062 | ||
| Soup (consommé) | 200.0 | × | 0.38 | = | 0.760 | ||
| Hamburg steak | 109.0 | × | 3.64 | = | 3.968 | ||
| Potato | 150.0 | × | 0.38 | = | 0.570 | ||
| Spinach | 100.0 | × | 0.53 | = | 0.530 | ||
| Apple pie | 150.0 | × | 0.43 | = | 0.645 | ||
| Total nitrogen in food | 14.249 | grams. | |||||
| Total nitrogen in urine | 8.870 | ||||||
| Fuel value of the food | 3323 calories. |