+-----------+-------+--------------------------------------------------+
| | | |
| | | Urine. |
| | | |
| Date. | Body- +-------+------+-----------+-----------+-----------+
| |weight.|Volume.| Sp. | Nitrogen. | Uric Acid.| P₂O₅. |
| | | 24 | Gr. | | | |
| | |hours. | | | | |
+-----------+-------+-------+------+-----------+-----------+-----------+
| 1903 | kilos | c.c. | | grams | gram | grams |
| | | | | | | |
| Oct. 11 | 65.4 | 1300 | 1015 | 10.37 | 0.611 | 1.72 |
| 12 | | 700 | 1022 | 9.07 | | |
| 13 | | 1050 | 1022 | 12.35 | 0.820 | 2.15 |
| 14 | | 1400 | 1017 | 12.01 | | |
| 15 | | 870 | 1020 | 11.48 | 0.671 | 1.76 |
| 16 | | 1165 | 1013 | 12.09 | | |
| 17 | | 840 | 1020 | 11.24 | | |
| 18 | | 1150 | 1017 | 10.00 | 0.613 | 1.77 |
| 19 | | 678 | 1022 | 7.79 | | |
| 20 | | 1165 | 1018 | 10.76 | 0.603 | 1.60 |
| 21 | | 1460 | 1017 | 11.91 | | |
| 22 | | 950 | 1019 | 10.71 | 0.643 | 1.73 |
| 23 | | 1165 | 1017 | 12.82 | | |
| 24 | 65.4 | 850 | 1025 | 12.49 | | |
| 25 | | 850 | 1022 | 11.07 | 0.645 | 1.76 |
| 26 | | 1025 | 1018 |⎫ | | |
| 27 | | 775 | 1018 |⎪ | | |
| 28 | | 1140 | 1015 |⎬ 8.31 | 0.465 | 1.18 |
| 29 | | 765 | 1020 |⎪ daily | daily | daily |
| 30 | | 860 | 1019 |⎪ average | average | average |
| 31 | | 1150 | 1015 |⎭ | | |
| Nov. 1 | | 750 | 1020 |⎫ | | |
| 2 | | 675 | 1022 |⎪ | | |
| 3 | | 955 | 1014 |⎪ | | |
| 4 | | 1270 | 1012 |⎬ 7.91 | 0.469 | 1.30 |
| 5 | | 885 | 1015 |⎪ | | |
| 6 | | 770 | 1020 |⎪ | | |
| 7 | | 860 | 1021 |⎭ | | |
| 8 | | 775 | 1020 |⎫ | | |
| 9 | | 890 | 1018 |⎪ | | |
| 10 | | 1070 | 1018 |⎪ | | |
| 11 | | 755 | 1020 |⎬ 7.86 | 0.537 | 1.40 |
| 12 | | 950 | 1023 |⎪ | | |
| 13 | | 1100 | 1017 |⎪ | | |
| 14 | | 980 | 1015 |⎪ | | |
| 15 | | 630 | 1020 |⎭ | | |
| 16 | 65.0 | 700 | 1020 |⎫ | | |
| 17 | | 1000 | 1015 |⎪ | | |
| 18 | | 940 | 1018 |⎪ | | |
| 19 | | 770 | 1023 |⎬ 7.82 | 0.467 | 1.49 |
| 20 | | 770 | 1025 |⎪ | | |
| 21 | | 790 | 1020 |⎪ | | |
| 22 | | 770 | 1021 |⎭ | | |
| 23 | | 590 | 1025 |⎫ | | |
| 27 | | 710 | 1024 |⎬ 8.55 | 0.476 | 1.67 |
| 28 | | 1080 | 1017 |⎪ | | |
| 29 | | 760 | 1019 |⎭ | | |
| 30 | | 870 | 1018 |⎫ | | |
| Dec. 1 | | 860 | 1017 |⎪ | | |
| 2 | | 1120 | 1015 |⎪ | | |
| 3 | | 1450 | 1009 |⎬ 7.72 | 0.506 | 1.43 |
| 4 | | 720 | 1019 |⎪ | | |
| 5 | | 720 | 1019 |⎪ | | |
| 6 | | 510 | 1027 |⎭ | | |
| 7 | 65.1 | 700 | 1018 |⎫ | | |
| 8 | | 650 | 1018 |⎪ | | |
| 9 | | 860 | 1013 |⎪ | | |
| 10 | | 975 | 1020 |⎬ 7.36 | 0.474 | 1.44 |
| 11 | | 800 | 1021 |⎪ | | |
| 12 | | 830 | 1018 |⎪ | | |
| 13 | | 750 | 1019 |⎭ | | |
| 14 | | 860 | 1018 |⎫ | | |
| 15 | | 870 | 1019 |⎪ | | |
| 16 | | 880 | 1015 |⎪ | | |
| 17 | | 820 | |⎬ 8.11 | 0.497 | 1.35 |
| 18 | | 760 | 1021 |⎪ | | |
| 19 | | 860 | 1017 |⎪ | | |
| 20 | | 520 | 1023 |⎭ | | |
| 21 | | 1200 | 1014 |⎫ 7.18 | | 1.05 |
| 22 | 65.0 | 510 | 1025 |⎭ | | |
| 23 | | 650 | |⎫ | | |
| 24 | | 670 | |⎪ | | |
| 25 | | 500 | |⎬ 6.70 | 0.356 | 0.97 |
| 26 | | 550 | |⎪ | | |
| 27 | | 850 | |⎭ | | |
| 28 | 65.2 | 930 | |⎫ | | |
| 29 | | 1200 | |⎪ | | |
| 30 | | 750 | |⎪ | | |
| 31 | | 1280 | |⎬ 8.70 | 0.626 | 1.21 |
| Jan. 1 | | 750 | |⎪ | | |
| 2 | | 750 | |⎪ | | |
| 3 | | 870 | |⎪ | | |
| 4 | | 1230 | |⎭ | | |
| 5 | | 720 | 1023 |⎫ | | |
| 6 | | 960 | 1020 |⎪ | | |
| 7 | | 760 | 1022 |⎪ | | |
| 8 | | 1000 | 1017 |⎬ 8.23 | 0.530 | 1.24 |
| 9 | | 720 | 1025 |⎪ | | |
| 10 | 65.1 | 730 | 1021 |⎭ | | |
| 11 | | 700 | 1016 |⎫ | | |
| 12 | | 650 | 1020 |⎪ | | |
| 13 | | 700 | 1024 |⎪ | | |
| 14 | | 660 | 1025 |⎬ 7.74 | 0.618 | 1.20 |
| 15 | | 610 | 1025 |⎪ | | |
| 16 | | 710 | 1024 |⎪ | | |
| 17 | | 660 | 1022 |⎭ | | |
| 18 | | 770 | 1016 |⎫ | | |
| 19 | 64.8 | 700 | 1022 |⎪ | | |
| 20 | | 1130 | 1018 |⎪ | | |
| 21 | | 830 | 1020 |⎬ 7.80 | 0.705 | 1.14 |
| 22 | | 600 | 1019 |⎪ | | |
| 23 | | 480 | 1021 |⎪ | | |
| 24 | | 750 | 1019 |⎭ | | |
| 25 | | 680 | 1020 |⎫ | | |
| 26 | | 800 | 1018 |⎪ | | |
| 27 | | 800 | 1020 |⎪ | | |
| 28 | | 700 | 1020 |⎬ 6.85 | 0.500 | 1.07 |
| 29 | 64.4 | 1010 | 1014 |⎪ | | |
| 30 | | 980 | 1018 |⎭ | | |
| 31 | | 820 | 1015 |⎫ | | |
| Feb. 1 | | 990 | 1015 |⎪ | | |
| 2 | | 660 | 1020 |⎪ | | |
| 3 | 64.4 | 1060 | 1015 |⎪ | | |
| 4 | | 980 | 1017 |⎬ 7.98 | 0.535 | 1.24 |
| 5 | | 970 | 1014 |⎪ | | |
| 6 | | 790 | 1019 |⎪ | | |
| 7 | | 1120 | 1015 |⎭ | | |
| 8 | | 715 | 1021 | 8.11 | | |
| 9 | 64.4 | 1225 | 1014 | 7.49 | 0.450 | |
| 10 | 64.4 | 770 | 1018 | 6.14 | 0.505 | |
| 11 | 64.5 | 715 | 1022 | 8.02 | 0.568 | |
| 12 | | 850 | 1021 | 8.82 | 0.539 | |
| 13 | | 490 | 1028 | 7.17 | 0.505 | |
| 14 | 64.4 | 795 | 1020 | 7.73 | 0.543 | |
| 15 | | 780 | 1021 |⎫ | | |
| 16 | | 920 | 1023 |⎪ | | |
| 17 | | 660 | 1021 |⎪ | | |
| 18 | | 640 | 1027 |⎬ 8.27 | 0.558 | |
| 19 | | 730 | 1023 |⎪ | | |
| 20 | | 840 | 1027 |⎪ | | |
| 21 | | 700 | 1018 |⎭ | | |
| 22 | | 440 | 1025 |⎫ | | |
| 23 | | 600 | 1023 |⎪ | | |
| 24 | | 750 | 1022 |⎪ | | |
| 25 | | 830 | 1017 |⎬ 7.47 | 0.556 | |
| 26 | 64.0 | 870 | 1021 |⎪ | | |
| 27 | | 910 | 1015 |⎪ | | |
| 28 | | 950 | 1014 |⎭ | | |
| 29 | | 600 | 1021 |⎫ | | |
| Mar. 1 | | 680 | 1021 |⎪ | | |
| 2 | | 1120 | 1011 |⎪ | | |
| 3 | | 640 | 1021 |⎬ 7.15 | 0.526 | |
| 4 | | 1080 | 1016 |⎪ | | |
| 5 | | 1220 | 1034 |⎪ | | |
| 6 | | 890 | 1015 |⎭ | | |
| 7 | | 1000 | 1014 |⎫ | | |
| 8 | | 650 | 1020 |⎪ | | |
| 9 | | 750 | 1020 |⎪ | | |
| 10 | | 850 | 1018 |⎬ 8.18 | 0.682 | |
| 11 | | 950 | 1014 |⎪ | | |
| 12 | | 1000 | 1016 |⎪ | | |
| 13 | 64.2 | 860 | 1019 |⎭ | | |
| 14 | | 840 | 1020 |⎫ | | |
| 15 | | 920 | 1016 |⎪ | | |
| 16 | | 750 | 1020 |⎪ | | |
| 17 | | 820 | 1017 |⎬ 7.83 | 0.540 | |
| 18 | | 1220 | 1012 |⎪ | | |
| 19 | | 920 | 1015 |⎪ | | |
| 20 | | 700 | 1022 |⎭ | | |
| 21 | | 900 | 1015 |⎫ | | |
| 22 | | 980 | 1013 |⎪ | | |
| 23 | | 990 | 1014 |⎪ | | |
| 24 | | 750 | 1020 |⎬ 8.04 | 0.733 | |
| 25 | | 820 | 1017 |⎪ | | |
| 26 | | 700 | 1021 |⎪ | | |
| 27 | | 910 | 1020 |⎭ | | |
| 28 | | 930 | 1017 | | | |
| 30 | | 900 | 1020 | | | |
| 31 | | 450 | |⎫ | | |
| Apr. 1 | | 500 | |⎪ | | |
| 2 | | 420 | |⎪ | | |
| 3 | | 600 | |⎪ | | |
| 4 | | 950 | |⎪ | | |
| 5 | | 930 | |⎬ 7.87 | 0.530 | 1.44 |
| 6 | | 980 | |⎪ | | |
| 7 | | 600 | |⎪ | | |
| 8 | | 980 | |⎪ | | |
| 9 | | 800 | |⎪ | | |
| 10 | | 810 | |⎭ | | |
| 11 | 65.2 | 940 | 1017 |⎫ |⎫ | |
| 12 | | 710 | 1024 |⎬ 9.46 |⎪ | |
| 13 | | 750 | 1024 |⎭ |⎪ | |
| 14 | | 740 | 1020 | 7.55 |⎬ 0.496 | |
| 15 | | 590 | 1024 | 6.51 |⎪ | |
| 16 | | 900 | 1016 | 7.51 |⎪ | |
| 17 | | 1290 | 1009 | 5.11 |⎭ | |
| 18 | 65.2 | 590 | 1017 | 5.96 |⎫ | |
| 19 | | 630 | 1024 | 6.39 |⎪ | |
| 20 | | 670 | 1022 | 7.48 |⎪ | |
| 21 | | 900 | 1021 | 8.10 |⎬ 0.527 | |
| 22 | | 980 | 1017 | 7.00 |⎪ | |
| 23 | | 850 | 1019 | 7.60 |⎪ | |
| 24 | | 640 | 1023 | 7.33 |⎭ | |
| 25 | 65.0 | 600 | 1021 | 8.23 |⎫ | |
| 26 | | 610 | 1014 | 5.82 |⎪ | |
| 27 | | 600 | 1023 | 7.27 |⎪ | |
| 28 | | 970 | 1015 | 7.05 |⎬ 0.490 | |
| 29 | | 795 | 1017 | 5.91 |⎪ | |
| 30 | | 700 | 1021 | 6.80 |⎪ | |
| May 1 | | 795 | 1016 | 5.72 |⎭ | |
| 2 | 65.2 | 860 | 1017 | 6.50 |⎫ | |
| 3 | | 1120 | 1016 | 6.92 |⎪ | |
| 4 | | 1090 | 1015 | 6.54 |⎪ | |
| 5 | | 580 | 1021 | 5.92 |⎬ 0.344 | |
| 6 | | 700 | 1020 | 7.29 |⎪ | |
| 7 | | 895 | 1017 | 8.97 |⎪ | |
| 8 | | 800 | 1016 | 7.30 |⎭ | |
| 9 | 65.2 | 895 | 1019 | 6.28 |⎫ | |
| 10 | | 850 | 1019 | 6.27 |⎪ | |
| 11 | | 960 | 1019 | 7.26 |⎪ | |
| 12 | | 690 | 1022 | 6.29 |⎬ 0.416 | |
| 13 | | 990 | 1017 | 7.96 |⎪ | |
| 14 | | 690 | 1022 | 7.21 |⎪ | |
| 15 | | 900 | 1015 | 6.15 |⎭ | |
| 16 | 65.1 | 945 | 1014 | 5.10 |⎫ | |
| 17 | | 1090 | 1016 | 6.15 |⎪ | |
| 18 | | 620 | 1020 | 5.21 |⎪ | |
| 19 | | 1110 | 1015 | 6.53 |⎪ | |
| 20 | | 895 | 1016 | 6.12 |⎬ 0.364 | |
| 21 | | 810 | 1019 | 6.95 |⎪ | |
| 22 | | 1110 | 1016 | 8.72 |⎪ | |
| 23 | 65.0 | 685 | 1020 | 7.07 |⎪ | |
| 24 | | 560 | 1021 | 6.78 |⎭ | |
| 25 | | 1090 | 1010 | 6.02 |⎫ | |
| 26 | | 610 | 1017 | 5.97 |⎪ | |
| 27 | | 790 | 1016 | 6.83 |⎪ | |
| 28 | | 1100 | 1014 | 7.65 |⎬ 0.420 | |
| 29 | | 650 | 1021 | 6.12 |⎪ | |
| 30 | 65.0 | 630 | 1021 | 5.21 |⎪ | |
| 31 | | 660 | 1018 | 5.07 |⎭ | |
| June 1 | 65.1 | 920 | 1014 | 5.96 | | |
| 2 | 65.1 | 800 | 1013 | 5.81 | | |
| 3 | 65.0 | 950 | 1014 | 7.30 | | |
| 4 | | 790 | 1015 | 6.78 | | |
| 5 | | 780 | 1020 | 8.28 | | |
| 6 | 65.1 | 890 | 1015 | 6.89 | | |
| 7 | | 720 | 1017 | 5.87 | | |
| 8 | | 950 | 1015 | 5.93 | | |
| 9 | | 1060 | 1014 | 4.96 | | |
| 10 | | 940 | 1017 | 5.92 | | |
| 11 | | 1050 | 1019 | 7.62 | | |
| 12 | | 1000 | 1017 | 6.66 | | |
| 13 | | 890 | 1021 | 7.26 | | |
| 14 | | 1340 | 1016 | 6.91 | | |
| 15 | | 1190 | 1015 | 6.86 | | |
| 16 | | 720 | 1025 | 7.99 | | |
| 17 | 65.2 | 800 | 1017 | 7.25 | | |
| 18 | | 820 | 1018 | 6.99 | | |
| 19 | | 920 | 1014 | 6.18 | | |
| 20 | | 890 | 1015 | 6.03 | | |
| 21 | | 900 | 1016 | 6.37 | | |
| 22 | | 760 | 1018 | 6.79 | | |
| 23 | | 630 | 1020 | 6.06 | | |
+-----------+-------+-------+------+-----------+-----------+-----------+
|Daily average from | | | | | |
| Oct. 26, 1903 | 833 | 1018 | 7.43 | 0.516 | 1.28 |
+-------------------+-------+------+-----------+-----------+-----------+
It will be seen by a study of the analytical data that Dr. Underhill had
an average daily excretion of nitrogen through the kidneys from October
26, 1903, to June 23, 1904, of 7.43 grams. From October 26 to April 13, a
period of nearly six months, the average daily excretion was 7.81 grams
of nitrogen, while from the latter date to June 23 the average daily
excretion amounted to 6.68 grams of nitrogen. Taking the body-weight at
65 kilos, the lower nitrogen figure would mean a metabolism of 0.102 gram
of nitrogen per kilo of body-weight, closely akin to the figures obtained
with the two preceding subjects.
An excretion of 6.68 grams of nitrogen corresponds to the metabolism
of 41.75 grams of proteid matter, while the excretion of 7.43 grams of
nitrogen implies the metabolism of 46.4 grams of proteid, being less than
one-half the ordinarily accepted requirement for the healthy adult.
During this long period of eight months the body-weight was stationary,
carrying with it the assumption that the body was in a condition of
nitrogen equilibrium. It should be emphasized in connection with Dr.
Underhill’s case, that throughout the entire period of eight months,
and more, there was perfect freedom in the choice of food. Further, it
will be noticed by a study of the dietary made use of in the balance
experiments that Dr. Underhill did not reduce his nitrogen intake by any
exclusion of meat. He practically made use of his ordinary diet, such as
he had always been accustomed to, but with a decided diminution of the
amount of proteid food, accompanied by a gradual reduction in the total
amount of food consumed each day. His diet, therefore, was in no sense a
vegetable diet. Meat was conspicuous in his daily food, but naturally in
reduced quantities.
On February 9 a nitrogen balance was attempted, in which a careful
comparison of the nitrogen content of all intake and output was made for
a period of six days. By a study of the results of this balance period,
shown in the accompanying tables, it will be noticed that not only was
there no deficiency of nitrogen, but the body was laying on nitrogen at
the rate of 0.158 gram per day. Further, it will be observed that the
fuel value of the food per day averaged only a little over 2000 calories.
Yet this amount of food, with its comparatively low fuel value, carried
with it only 8.83 grams of nitrogen per day. Upon this quantity of food
the body was able to maintain itself, with a little nitrogen to spare and
with sufficient fuel value in the food to supply all the energy required
for muscular contraction, mental effort, and the maintenance of body
temperature.
_Tuesday, February 9, 1904._
Breakfast.—Bread 22 grams, tea 146 grams.
Lunch.—Macaroni 129 grams, fried sweet potato 85.5 grams, bread 59 grams,
butter 15 grams, fig cake with wine sauce 115 grams, sugar 15 grams,
coffee 210 grams.
Dinner.—Bread 27.9 grams, beef 48 grams, potato 207.5 grams, butter 19
grams, pie 272 grams, coffee 210 grams, sugar 10 grams.
Food. Grams. Per cent Nitrogen. Total Nitrogen.
Bread 22 + 59 + 27.9 = 108.9 × 1.61 = 1.753 grams.
Tea 146.0 × 0.018 = 0.026
Macaroni 129.0 × 0.87 = 1.122
Sweet potato 85.5 × 0.28 = 0.240
Butter 15 + 19 = 34.0 × 0.088 = 0.030
Fig cake 115.0 × 0.69 = 0.793
Sugar 15 + 10 = 25.0 × 0.00 = 0.000
Coffee (lunch) 210.0 × 0.09 = 0.207
Beef 48.0 × 2.64 = 1.267
Potatoes 207.5 × 0.36 = 0.747
Pie 272.0 × 0.49 = 1.332
Coffee (dinner) 210.0 × 0.15 = 0.315
------
Total nitrogen in food 7.832 grams.
Total nitrogen in urine 7.490
Fuel value of the food 2232 calories.
_Wednesday, February 10, 1904._
Breakfast.—Bread 33 grams, tea 146 grams.
Lunch.—Bread 71 grams, butter 10.5 grams, apple fritters 119 grams,
coffee 210 grams, sugar 21 grams.
Dinner.—Roast pork 80 grams, bread 55.7 grams, butter 27.8 grams,
cranberry sauce 150 grams, coffee 210 grams, sugar 21 grams.
Food. Grams. Per cent Nitrogen. Total Nitrogen.
Bread 33 + 71 + 55.7 = 159.7 × 1.65 = 2.635 grams.
Tea 146.0 × 0.075 = 0.109
Butter 10.5 + 27.8 = 38.3 × 0.088 = 0.033
Apple fritters 119.0 × 0.45 = 0.535
Coffee (lunch) 210.0 × 0.11 = 0.231
Sugar 21 + 21 = 42.0 × 0.00 = 0.000
Roast pork 80.0 × 4.80 = 3.840
Cranberry sauce 150.0 × 0.04 = 0.060
Coffee (dinner) 210.0 × 0.11 = 0.231
------
Total nitrogen in food 7.674 grams.
Total nitrogen in urine 6.140
Fuel value of the food 1694 calories.
_Thursday, February 11, 1904._
Breakfast.—Bread 38.7 grams, tea 146 grams.
Lunch.—Bread 97.5 grams, butter 31.5 grams, sweet potato 108.7 grams,
spaghetti 82.5 grams, peaches 89.4 grams, coffee 210 grams, sugar 21
grams.
Dinner.—Bread 75 grams, butter 21.5 grams, roast beef 116 grams, lemon
pie 188.5 grams, coffee 210 grams, sugar 21 grams.
Food. Grams. Per cent Nitrogen. Total Nitrogen.
Bread 38.7 + 97.5 + 75 = 211.2 × 1.75 = 3.696 grams.
Tea 146.0 × 0.084 = 0.122
Butter 31.5 + 21.5 = 53.0 × 0.088 = 0.046
Sweet potato 108.7 × 0.31 = 0.336
Spaghetti 82.5 × 0.47 = 0.387
Peaches 89.4 × 0.09 = 0.080
Coffee (lunch) 210.0 × 0.096 = 0.201
Sugar 21 + 21 = 42.0 × 0.00 = 0.000
Roast beef 116.0 × 3.00 = 3.480
Lemon pie 188.5 × 0.61 = 1.149
Coffee (dinner) 210.0 × 0.13 = 0.273
------
Total nitrogen in food 9.770 grams.
Total nitrogen in urine 8.020
Fuel value of the food 2334 calories.
_Friday, February 12, 1904._
Breakfast.—Bread 34 grams, tea 146 grams.
Lunch.—Bread 42 grams, butter 20 grams, codfish cake 72 grams, potato 100
grams, custard 100 grams, coffee 210 grams, sugar 21 grams.
Dinner.—Bread 46 grams, butter 25.5 grams, veal 53 grams, potato 75
grams, lima beans 50 grams, apple dumpling 120 grams, coffee 210 grams,
sugar 21 grams.
Food. Grams. Per cent Nitrogen. Total Nitrogen.
Bread 34 + 42 + 46 = 122.0 × 1.71 = 2.086 grams.
Tea 146.0 × 0.045 = 0.065
Butter 20 + 25.5 = 45.5 × 0.088 = 0.040
Codfish cake 72.0 × 1.57 = 1.130
Potato 100.0 × 0.41 = 0.410
Custard 100.0 × 0.83 = 0.830
Coffee (lunch) 210.0 × 0.078 = 0.163
Sugar 21 + 21 = 42.0 × 0.00 = 0.000
Veal 53.0 × 5.51 = 2.920
Potato 75.0 × 0.37 = 0.277
Lima beans 50.0 × 0.90 = 0.450
Apple dumpling 120.0 × 0.72 = 0.860
Coffee (dinner) 210.0 × 0.12 = 0.252
------
Total nitrogen in food 9.483 grams.
Total nitrogen in urine 8.820
Fuel value of the food 1735 calories.
_Saturday, February 13, 1904._
Breakfast.—Bread 35 grams, tea 146 grams.
Lunch.—Bread 57.5 grams, butter 28 grams, sweet potato 100 grams, coffee
210 grams, sugar 21 grams, quince 105.5 grams, apple turnovers 153 grams.
Dinner.—Bread 35.5 grams, butter 11 grams, peas 70 grams, roast beef 50
grams, pie 169 grams, coffee 210 grams, sugar 21 grams.
Food. Grams. Per cent Nitrogen. Total Nitrogen.
Bread 35 + 57.5 + 35.5 = 128.0 × 1.64 = 2.099 grams.
Tea 146.0 × 0.033 = 0.048
Butter 28 + 11 = 39.0 × 0.088 = 0.034
Sweet potato 100.0 × 0.37 = 0.370
Coffee (lunch) 210.0 × 0.15 = 0.315
Sugar 21 + 21 = 42.0 × 0.00 = 0.000
Quince 105.5 × 0.047 = 0.049
Apple turnovers 153.0 × 0.96 = 1.468
Peas 70.0 × 0.96 = 0.672
Roast beef 50.0 × 3.22 = 1.610
Pie 169.0 × 0.43 = 0.726
Coffee (dinner) 210.0 × 0.11 = 0.231
------
Total nitrogen in food 7.622 grams.
Total nitrogen in urine 7.170
Fuel value of the food 2186 calories.
_Sunday, February 14, 1904._
Breakfast.—Bread 31 grams, tea 146 grams.
Lunch.—Bread 70.5 grams, butter 29 grams, potato 123 grams, apple sauce
127.5 grams, coffee 210 grams, sugar 21 grams.
Dinner.—Bread 20.5 grams, butter 23 grams, chicken 101.5 grams, potato
80 grams, succotash 80 grams, chocolate cake 103 grams, ice cream 125.8
grams, coffee 210 grams, sugar 21 grams.
Food. Grams. Per cent Nitrogen. Total Nitrogen.
Bread 31 + 70.5 + 20.5 = 122.0 × 1.75 = 2.135 grams.
Tea 146.0 × 0.063 = 0.091
Butter 29 + 23 = 52.0 × 0.088 = 0.045
Potato 123.0 × 0.41 = 0.504
Apple sauce 127.5 × 0.029 = 0.037
Coffee (lunch) 210.0 × 0.10 = 0.210
Sugar 21 + 21 = 42.0 × 0.00 = 0.000
Chicken 101.5 × 5.08 = 5.150
Potato 80.0 × 0.37 = 0.296
Succotash 80.0 × 0.57 = 0.456
Chocolate cake 103.0 × 0.75 = 0.772
Ice cream 125.8 × 0.58 = 0.729
Coffee (dinner) 210.0 × 0.11 = 0.231
------
Total nitrogen in food 10.656 grams.
Total nitrogen in urine 7.730
Fuel value of the food 2231 calories.