JACOBUS.

Wednesday, May 18, 1904.

Breakfast.—Banana 73 grams, fried rice 100 grams, syrup 58 grams, bread 48 grams, butter 15 grams, coffee 150 grams, cream 118 grams, sugar 35 grams.

Lunch.—Tomato soup 105 grams, sweet potato 61.5 grams, farina croquette 91 grams, syrup 49 grams, bread 35 grams, butter 23 grams, coffee 150 grams, cream 46 grams, sugar 21 grams.

Dinner.—Consommé 155 grams, Hamburg steak 67 grams, spinach 30 grams, potato 150 grams, bread 27 grams, butter 8 grams, pie 110 grams, cream 61 grams, sugar 10 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Butter15 + 23 + 8 =46×0.15=0.069grams.
Banana73×0.23=0.168
Fried rice100×0.75=0.750
Bread48×1.66=0.797
Cream118 + 46 + 61 =225×0.46=1.035
Sugar35 + 21 + 10 =66×0.00=0.000
Coffee150 + 150 =300×0.06=0.180
Syrup58 + 49 =107×0.024=0.026
Tomato soup105×0.41=0.431
Bread35×1.60=0.560
Farina croquette91×1.09=0.991
Sweet potato61.5×0.32=0.197
Consommé155×0.38=0.589
Potato150×0.38=0.570
Hamburg steak67×3.64=2.439
Bread27×1.80=0.486
Spinach30×0.53=0.159
Pie110×0.43=0.473
Total nitrogen in food9.920grams.
Total nitrogen in urine6.750
Fuel value of the food2846 calories.

Thursday, May 19, 1904.

Breakfast.—Banana 105 grams, baked potato 79 grams, bread 40 grams, butter 15 grams, coffee 225 grams, cream 85 grams, sugar 24 grams.

Lunch.—Omelette (plain) 60 grams, fried hominy 68 grams, syrup 48 grams, potato 100 grams, boiled onion 81 grams, bread 45 grams, butter 14.5 grams, apple pudding 117 grams, sugar 10 grams, cream 40 grams.

Dinner.—Soup 100 grams, bacon 31 grams, baked macaroni 53 grams, fried sweet potato 55 grams, boiled Indian-meal 50 grams, bread 35 grams, butter 15 grams, coffee 155 grams, cream 96 grams, sugar 31 grams, chocolate 40 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Banana105×0.23=0.242grams.
Bread40×1.54=0.616
Cream85 + 40 + 96 =221×0.47=1.038
Coffee225 + 155 =380×0.06=0.228
Sugar10 + 24 + 31 =65×0.00=0.000
Potato79×0.49=0.387
Butter15 + 14.5 + 15 =44.5×0.15=0.067
Bread45×1.60=0.720
Onion81×0.27=0.219
Fried hominy68×0.67=0.456
Eggs (omelette)60×1.58=0.948
Potato100×0.49=0.490
Syrup48×0.024=0.012
Apple pudding117×0.28=0.328
Soup100×0.53=0.530
Bread35×1.74=0.609
Fried sweet potato55×0.38=0.209
Bacon31×3.00=0.930
Baked macaroni53×0.93=0.493
Boiled Indian-meal50×0.20=0.100
Chocolate40×0.73=0.292
Total nitrogen in food8.914grams.
Total nitrogen in urine6.270
Fuel value of the food2831 calories.

Friday, May 20, 1904.

Breakfast.—Orange 70 grams, fried hominy 57 grams, syrup 48 grams, baked potato 113 grams, bread 34 grams, butter 16 grams, coffee 75 grams, cream 33 grams, sugar 10 grams.

Lunch.—Fish-cake 88 grams, fried hominy 61 grams, syrup 32 grams, potato 100 grams, bread 45 grams, butter 22.5 grams, coffee 75 grams, cream 35 grams, sugar 10 grams, bread pudding 81 grams.

Dinner.—Consommé 75 grams, boiled fish 99 grams, potato 132 grams, rice croquette 83 grams, syrup 50 grams, bread 49 grams, butter 19 grams, coffee 150 grams, cream 48 grams, sugar 20 grams.

Evening.—Beer 375 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Butter16 + 22.5 + 19 =57.5×0.15=0.086grams.
Orange70×0.20=0.140
Coffee75 + 75 + 150 =300×0.06=0.180
Cream33 + 35 + 48 =116×0.44=0.510
Sugar10 + 10 + 20 =40×0.00=0.000
Potato113×0.40=0.452
Fried hominy57×0.74=0.422
Bread34×1.72=0.585
Syrup48 + 32 + 50 =130×0.024=0.031
Potato100×0.30=0.300
Bread45×1.71=0.770
Fried hominy61×0.57=0.348
Fish-cake88×1.22=1.074
Bread pudding81×0.99=0.802
Bread49×1.97=0.965
Fish99×3.18=3.148
Potato132×0.34=0.449
Rice croquette83×1.06=0.880
Beer375×0.069=0.259
Consommé75×0.59=0.443
Total nitrogen in food11.844grams.
Total nitrogen in urine7.290
Fuel value of the food2914 calories.

Saturday, May 21, 1904.

Breakfast.—Banana 72 grams, roll 48 grams, butter 7 grams, boiled Indian-meal 100 grams, cream 90 grams, sugar 17 grams.

Lunch.—Lamb chop 49 grams, potato 95 grams, tomato 91 grams, beans 45 grams, bread 49 grams, butter 13.5 grams, coffee 150 grams, sugar 28 grams, water ice 153 grams.

Dinner.—Soup 75 grams, bacon 12 grams, fried egg 50 grams, potato 100 grams, bread 40 grams, butter 9 grams, prunes 175 grams, coffee 75 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Butter7 + 13.5 + 9 =29.5×0.15=0.044grams.
Banana72×0.23=0.167
Boiled Indian-meal100×0.17=0.170
Cream90 + 45 =135×0.43=0.581
Sugar17 + 28 =45×0.00=0.000
Roll48×1.65=0.792
Bread49×1.82=0.892
Lamb chop49×4.63=2.269
Potato95×0.71=0.675
Coffee150 + 75 =225×0.06=0.135
Tomato91×0.17=0.155
Water Ice153×0.012=0.018
Bread40×1.62=0.648
Soup75×1.21=0.908
Prunes175×0.16=0.280
Potato100×0.60=0.600
Egg50×2.27=1.135
Bacon12×3.05=0.366
Total nitrogen in food9.835grams.
Total nitrogen in urine7.070
Fuel value of the food2157 calories.

Sunday, May 22, 1904.

Breakfast.—Orange 44 grams, oatmeal 130 grams, roll 52 grams, coffee 150 grams, cream 120 grams, sugar 30 grams.

Lunch.—Fried rice 72 grams, syrup 48 grams, boiled onions 70 grams, potato 100 grams, bread 33 grams, butter 14.5 grams, coffee 150 grams, cream 45 grams, sugar 20 grams, ice cream 147 grams.

Dinner.—Soup 100 grams, chicken 75 grams, fried potato 50 grams, spinach 15 grams, bread 48 grams, butter 12 grams, coffee 75 grams, cream 50 grams, sugar 14 grams, strawberry short-cake 201 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Orange44×0.20=0.088
Oatmeal130×0.43=0.559
Roll52×1.67=0.868
Cream45 + 120 + 50 =215×0.45=0.968
Sugar30 + 20 + 14 =64×0.00=0.000
Coffee150 + 150 + 75 =375×0.06=0.225
Bread33×1.57=0.518
Butter14.5 + 12 =26.5×0.15=0.040
Onions70×0.25=0.175
Potato100×0.30=0.300
Ice cream147×0.53=0.779
Fried rice72×0.75=0.540
Syrup48×0.024=0.012
Bread48×1.91=0.917
Soup100×0.30=0.300
Chicken75×3.02=2.265
Fried potato50×0.37=0.185
Spinach15×0.55=0.083
Strawberry short-cake210×0.50=1.005
Total nitrogen in food9.827grams.
Total nitrogen in urine7.620
Fuel value of the food2836 calories.

Monday, May 23, 1904.

Breakfast.—Banana 70 grams, roll 64 grams, butter 9 grams, coffee 75 grams, cream 85 grams, sugar 10 grams.

Lunch.—Boiled eggs 73 grams, fried potato 75 grams, bread 58 grams, butter 11.5 grams, apple sauce 90 grams, coffee 75 grams, cream 35 grams, sugar 21 grams.

Dinner.—Bacon 35 grams, potato croquette 47 grams, bread 39 grams, butter 9.5 grams, chocolate 45 grams, coffee 100 grams, cream 50 grams, sugar 15 grams, water ice 151 grams.

Food.Grams.Per cent Nitrogen.Total Nitrogen.
Banana70×0.23=0.161grams.
Butter9 + 11.5 + 9.5 =30×0.15=0.045
Cream85 + 35 + 50 =170×0.45=0.765
Sugar10 + 21 + 15 =46×0.00=0.000
Roll64×1.63=1.043
Coffee72 + 75 + 100 =250×0.06=0.150
Fried potato75×0.60=0.450
Bread58×1.64=0.951
Eggs73×2.07=1.511
Apple sauce90×0.02=0.018
Potato croquette47×0.77=0.362
Bacon35×3.28=1.148
Bread39×1.75=0.683
Chocolate45×0.73=0.329
Water ice151×0.006=0.009
Total nitrogen in food7.625grams.
Total nitrogen in urine6.480
Fuel value of the food2041 calories.

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.
Nitrogen balance for seven days=+8.982grams.
Nitrogen balance per day=+1.283grams.

Average Intake.

Calories per day2542.
Nitrogen per day9.661 grams.

During this balance period of seven days, 67.630 grams of nitrogen were taken in with the food, while 49.12 grams of nitrogen were excreted through the urine and 9.528 grams were passed out through the fæces. This means a large plus balance of 8.98 grams of nitrogen for the entire period, showing that the body was being supplied with considerably more proteid than was necessary for the establishment of nitrogen equilibrium. The average daily intake of nitrogen was 9.661 grams, whereas this might have been reduced to 8.4 grams per day with perfect assurance of nitrogen equilibrium being maintained. Further, it is to be noticed that the average daily intake of food for this period had a fuel value of only 2542 calories. The average daily excretion of metabolized nitrogen during the balance period was only 7.01 grams, while the average daily excretion for the last two months of the experiment amounted to 7.43 grams.

With Schenker the following results were obtained: