Tuesday, May 24, 1904.

Breakfast.—Orange 80 grams, boiled rice 105 grams, roll 55 grams, butter 9 grams, coffee 100 grams, cream 50 grams, sugar 30 grams.

Lunch.—Soup 100 grams, fried potato 80 grams, boiled onions 130 grams, bread 44.5 grams, butter 12.5 grams, stewed prunes 108 grams, coffee 100 grams, cream 50 grams, sugar 21 grams.

Dinner.—Hamburg steak 84 grams, mashed potato 135 grams, bread 14 grams, butter 3 grams, cream pie 153 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Rice105×0.36=0.378grams.
Coffee100 + 100 =200×0.06=0.120
Orange80×0.20=0.160
Roll55×1.64=0.902
Butter9 + 12.5 + 3 =24.5×0.15=0.037
Sugar30 + 21 =51×0.00=0.000
Cream50 + 50 =100×0.45=0.450
Bread44.5×1.66=0.739
Prunes108×0.17=0.184
Soup (celery)100×0.48=0.480
Onions130×0.30=0.390
Potato (fried)80×0.25=0.200
Potato (mashed)135×0.46=0.621
Hamburg steak84×3.96=3.326
Bread14×1.82=0.255
Cream pie153×0.93=1.423
Total nitrogen in food9.665grams.
Total nitrogen in urine7.640
Fuel value of the food2174 calories.

NITROGEN BALANCE.—Jacobus.

Nitrogen
Taken in.
Output.
Nitrogen in Urine.Weight of Fæces (dry).
May189.920grams.6.75grams.5.0grams.
198.9146.2710.0
2011.8447.2930.0
219.8357.0728.3
229.8277.6220.7
237.6256.4818.8
249.6657.6432.0
144.8grams contain
6.58 % N.
67.63049.12+9.528grams nitrogen.
67.630grams nitrogen.58.648grams nitrogen.