The daily diet with its content of nitrogen, etc., is detailed under Oakman. Any variations (only slight ones) from this diet are indicated on the individual balance-sheets, corrections being made in the nitrogen intake. In all of the men, with one exception, a distinct plus balance is seen, showing that under the conditions of this experiment the men were all storing up nitrogen. The plus balance per day varied from 0.132 gram to 1.231 grams of nitrogen. The average daily output of nitrogen through the urine for this seven days’ period (Oakman’s case) was 7.24 grams, being 0.28 gram less per day than in the preceding period. Sliney, the one man who failed to show a positive balance, was apparently losing nitrogen at the rate of 0.48 gram per day during this period. All of the individual data are shown in the accompanying tables of results: OAKMAN. _Monday February 29, 1904._ Breakfast.—Boiled rice 175 grams, milk 125 grams, sugar 25 grams, baked potato 150 grams, one cup coffee 350 grams, butter 10 grams. Dinner.—Baked spaghetti 250 grams, mashed potato 250 grams, bread 75 grams, boiled tomato 150 grams, apple pie 112 grams, one cup coffee 350 grams. Supper.—Biscuit 175 grams, fried bacon 20 grams, fried sweet potato 150 grams, butter 20 grams, one cup tea 350 grams. Food. Grams. Per cent Nitrogen. Total Nitrogen. Boiled rice 175 × 0.34 = 0.595 grams. Milk 125 × 0.55 = 0.687 Sugar 25 × 0.00 = 0.000 Baked potato 150 × 0.34 = 0.510 Coffee (breakfast) 350 × 0.082 = 0.287 Butter 10 + 20 = 30 × 0.16 = 0.480 Spaghetti 250 × 0.73 = 1.825 Mashed potato 250 × 0.30 = 0.750 Bread 75 × 1.61 = 1.207 Tomato 150 × 0.16 = 0.240 Apple pie 112 × 0.46 = 0.515 Biscuit 175 × 1.21 = 2.117 Fried bacon 20 × 3.80 = 0.760 Fried sweet potato 150 × 0.22 = 0.330 Tea 350 × 0.06 = 0.210 Coffee (dinner) 350 × 0.11 = 0.385 ------ Total nitrogen in food 10.466 grams. Total nitrogen in urine 6.880 Fuel value of the food 2670 calories. _Tuesday, March 1, 1904._ Breakfast.—Fried rice 150 grams, syrup 50 grams, baked potato 150 grams, butter 10 grams, one cup coffee 350 grams. Dinner.—Thick pea soup 250 grams, boiled onions 150 grams, boiled sweet potato 150 grams, bread 75 grams, butter 20 grams, one cup coffee 350 grams.