Breakfast.—Orange 80 grams, fried rice 186 grams, syrup 72 grams, coffee 100 grams, cream 50 grams, sugar 21 grams.

Lunch.—Celery soup 125 grams, bread 34 grams, butter 19 grams, boiled onion 127 grams, potato 150 grams, tomato sauce 50 grams, stewed prunes 189 grams, cream 50 grams.

Dinner.—Tomato soup 125 grams, bread 20.5 grams, fried potato 100 grams, spinach 130 grams, coffee 100 grams, cream 50 grams, sugar 14 grams, cream pie 158 grams.

Evening.—Ginger ale 250 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Rice186×0.36=0.670grams.
Syrup72×0.024=0.017
Coffee100 + 100 =200×0.06=0.120
Sugar21 + 14 =35×0.00=0.000
Orange80×0.20=0.160
Cream50 + 50 + 50 =150×0.45=0.675
Bread34×1.66=0.564
Butter19×0.15=0.029
Celery soup125×0.48=0.600
Onion127×0.30=0.381
Prunes189×0.17=0.321
Potato150×0.26=0.390
Tomato sauce50×0.23=0.115
Tomato soup125×0.19=0.238
Bread20.5×1.82=0.373
Fried potato100×0.46=0.460
Spinach130×0.54=0.702
Cream pie158×0.93=1.469
Ginger ale250×0.00=0.000
Total nitrogen in food7.284grams.
Total nitrogen in urine7.340
Fuel value of the food2422 calories.

NITROGEN BALANCE.—Donahue.

Nitrogen
Taken in.		Output.
Nitrogen in Urine.Weight of Fæces[43] (dry).
May188.119grams.5.75grams.
199.4826.6415grams.
2010.5608.45
218.9928.64
229.0258.53
238.3937.6989
247.2847.3424
128grams contain
6.40% N.
61.85553.04+8.192grams nitrogen.
61.855grams nitrogen.61.232grams nitrogen.
Nitrogen balance for seven days=+0.623grams.
Nitrogen balance per day=+0.089grams.