NationalLibraryOfScotland/medical-history-of-british-india huggingface dataset:
43
The higher result obtained in Lucknow Jail compared with that from the
same diet in Mainpuri Jail is due to the higher percentage of the nitrogen of
wheat absorbed and the greater protein content of the barley in use in Lucknow
Jail.
D.—Diet F.
Juar
.
.
. .
. . 11 chittacks or 22 ozs. roughly.
Pulse (Urid dal)
.
.
.
. 3
„
,, 6 ,,
,,
Arhar .
.
.
.
.
. 1 chittack „ 2 „
„
Vegetables
.
.
.
.
. 3 chittacks „ 6 „
„
Agra Jail.
SERIAL No. 11. BATCH B.
Five prisoners under observation for five days.
Total amount
of fæces,
lbs.
Total
nitrogen of
fæces.
Nitrogen
of
Juar.
Nitrogen
of
Urid.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
26th March 1910
.
8.00
30.92
7.4844
6.294
1.9964
0.5
27th March 1910
.
12.72
49.27
7.4844
6.294
1.9964
0.5
28th March 1910
.
8.40
34.99
7.4844
6.294
1.9964
0.5
29th March 1910
.
12.28
43.21
7.4844
6.294
1.9964
0.5
30th March 1910
.
6.70
23.50
7.4844
6.294
1.9964
0.5
Average intake of nitrogen
Average output of nitrogen in
per man daily .
. 16.2748 grms.
fæces per man daily .
. 7.2756 grms.
Nitrogen absorbed—8.9992 grms. =55.3 per cent. of nitrogen of diet.
It will be noticed that no less than half the total nitrogen of this diet is
derived from the pulses, 8 ozs. of Urid and Arhar dal entering into the com-
position of the diet. This in itself is sufficient to condemn the diet, and as a
result we find only 55 per cent. of its nitrogen absorbed. As will be seen later
practically 60 per cent. of this diet should be absorbed, so that the excessive
quantities of pulse actually tend to decrease the percentage absorption of protein
from diets of this type.1
E.—Diet B.
Bajra
.
.
.
.
.
. 12 chittacks or 24 ozs. roughly.
Pulse (Urid dal)
.
.
.
. 2 ,,
, , 4 „
„
Arhar
.
.
.
.
.
. 1 chittack
„ 2 „
„
Vegetables
.
. .
.
. 3 chittacks „ 6
„
„
1 Church states, "The digestibility of the albuminoids in pulse as compared with that of the corresponding
compounds in the cereals grains has been usually regarded as low. In general, they are not only digested and
absorbed at a slower rate, but a larger proportion of the total amount present remains unattacked and unused in
its passage through the alimentary canal. The proportion of unused to used albuminoids is proportionately
highest when the pulse forms the largest part of the ration; it is much reduced when the pulse constitutes not
more than one-fourth of the daily food." [Food-Grains of India.]
G 2
44
Naini Jail.
SERIAL No. 12. BATCH B.
Ten prisoners under observation for ten days.
Total amount
of fæces.
ozs.
Total
nitrogen of
fæces.
Nitrogen
of
Bajra.
Nitrogen
of
Urid.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
2nd December 1909 .
11.50
645.08
grms.
9.5289
4.00
1.951
0.5
3rd December 1909 .
15.00
9.5289
4.00
1.951
0.5
4th December 1909 .
17.50
9.5289
4.00
1.951
0.5
5th December 1909 .
15.00
9.5289
4.00
1.951
0.5
6th December 1909 .
14.50
9.5289
4.00
1.951
0.5
7th December 1909 .
13.50
9.5289
4.00
1.951
0.5
8th December 1909 .
13.00
9.5289
4.00
1.951
0.5
9th December 1909 .
14.00
9.5289
4.00
1.951
0.5
10th December 1909 .
10.50
9.5289
4.00
1.951
0.5
11th December 1909 .
12.00
9.5289
4.00
1.951
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily
.
.
. 15.9799 grms.
fæces per man daily .
. 6.4508 grms.
Nitrogen absorbed—9.5291 grms. =59.6 per cent. of nitrogen of diet.
F . D i e t ½ ( E + F ) .
Wheat .
. .
. .
. 5¾ chittacks or 11½ ozs. roughly.
Juar
.
.
.
.
.
5½
„ „ 11 „
„
Gram
.
.
.
.
.
. 2¾
„ „
5½ „
„
A r h a r
.
.
.
.
.
. 1 chittack „
2
„
„
Vegetables
.
.
.
.
. 3 chittacks „ 6
„
„
45
Agra Jail.
SERIAL No. 13. BATCH B.
Ten prisoners under observation for ten days.
Total
amount of
fæces.
lbs.
Total
nitrogen
of fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Juar.
Nitrogen
of
Gram.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
12th October 1909
.
14.75
588.57
grms.
5.2187
3.993
4.2405
1.939
0.5
13th October 1909
.
11.75
5.2187
3.993
4.2405
1.939
0.5
14th October 1909
.
12.25
5.2187
3.993
4.2405
1.939
0.5
15th October 1909
.
8.50
5.2187
3.993
4.2405
1.939
0.5
16th October 1909
.
11.50
5.2187
3.993
4.2405
1.939
0.5
17th October 1909
.
7.25
5.2187
3.993
4.2405
1.939
0.5
18th October 1909
.
10.50
5.2187
3.993
4.2405
1.939
0.5
19th October 1909
.
11.00
5.2187
3.993
4.2405
1.939
0.5
20th October 1909
.
12.75
5.2187
3.993
4.2405
1.939
0.5
21st October 1909
.
9.50
5.2187
3.993
4.2405
1.939
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily .
.
. 15.8912 grms.
fæces per man daily .
. 5.8857 grms.
Nitrogen absorbed—10.0055 grms. =62.9 per cent. of the nitrogen of the diet.
These conclude our observations on the dietaries officially sanctioned in
the Jail Code. As already stated other combinations than those laid down are
made use of in the several jails. Some of these combinations were investigated
where the actual quantity of food was kept constant at 18 chittacks including
3 chittacks of vegetables. The results obtained we shall give under the
heading G.
G. Diet.
Different combinations of the food-materials making 18 chittacks, the
official quantity.
SERIAL No. 14.
Five prisoners under observation for five days.
Wheat
.
.
.
.
.
. .
.
. 6 chittacks.
Juar
.
.
.
.
. .
.
.
. 7
„
Arhar
.
.
.
.
.
.
.
.
. 2
„
Vegetables .
.
. .
. .
.
.
. 3
„
46
Total amount
of fæces.
o z s .
Total
nitrogen of
fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Juar .
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
17th March 1910
.
69.50
19.97
5.298
5.208
4.0384
0.5
18th March 1910
.
83.50
24.15
5.298
5.208
4.0384
0.5
19th March 1910
.
67.00
20.52
5.298
5.208
4.0384
0.5
20th March 1910
.
75.00
21.51
5.298
5.208
4.0384
0.5
21st March 1910
.
75.00
24.66
5.298
5.208
4.0384
0.5
22nd March 1910
.
29.50
14.05
5.298
5.208
4.0384
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily
.
.
. 1 5 . 0 4 4 4 g r ms .
fæces per man daily .
. 4.9944 grms.
Nitrogen absorbed—10.05 grms. = 66.8 per cent. of nitrogen of diet.
SERIAL No. 15.
Five prisoners under observation for five days.
Wheat
.
.
.
.
.
.
.
.
. 8 chittacks
.
Barley
.
.
.
.
.
.
.
.
. 6 „
Arhar
.
.
.
.
.
.
.
.
. 1 chittack.
Vegetables
.
.
.
.
.
.
.
. 3 chittacks.
Total amount
of fæces. o z s .
Total
nitrogen of
fæces.
Nitrogen
of
Wheat.
Nitrogen
of
J ua r .
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
10th March 1910
.
72.50
14.70
7.064
5.268
2.0192
0.5
11th March 1910
.
107.50
23.78
7.064
5.268
2.0192
0.5
12th March 1910
.
105.50
23.85
7.064
5.268
2.0192
0.5
13th March 1910
.
112.50
25.65
7.064
5.268
2.0192
0.5
14th March 1910
.
120.50
20.08
7.064
5.268
2.0192
0.5
15th March 1910
.
30.00
8 . 5 0
7.064
5.268
2.0192
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily .
.
. 1 4 . 8 5 1 2 g r ms .
fæces per man daily
.
4.6624 grms.
Nitrogen absorbed—10.1888 grms. =68.6 per cent. of nitrogen of diet.
47
SERIAL No. 16.
Five prisoners under observation for seven days.
Wheat
.
.
.
.
.
.
.
.
5 chittacks.
Juar
.
.
.
.
.
.
.
. 8
„
Arhar
.
.
.
.
.
.
.
.
.
2
„
Vegetable
.
.
.
.
.
.
.
. 3
„
Total amount
of fæces.
l b s .
Total Nitrogen
of
Fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Juar.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
19th January 1910 .
3 . 1 1
17.61
5.354
5.110
3.90
0.5
20th January 1910
.
2.36
12.61
5.354
5.110
3.90
0.5
21st January 1910 .
3.92
21.55
5.354
5.110
3.90
0.5
22nd January 1910 .
3 . 4 2
19.45
5.354
5.110
3.90
0.5
23rd January 1910 .
5.64
29.83
5.354
5.110
3.90
0.5
24th January 1910 .
4.23
22.43
5.354
5.110
3.90
0.5
25th January 1910 .
3.60
21.56
5.354
5.110
3.90
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily
. .
. 14.864 grms.
fæces per man daily .
. 4.144 grms.
Nitrogen absorbed—10.72 grms.=72.1 per cent. of nitrogen of diet.
(NOTE.—The wheat given in this diet was first class material, so that the absorption is higher than would have been
the case if the ordinary jail standard of wheat had been used.)
SERIAL No. 17.
Ten prisoners under observation for five days.
Wheat
.
.
.
.
.
.
.
.
.
9 chittacks.
Bajra .
.
.
.
.
.
.
.
. 4
„
Arhar .
.
.
.
.
.
.
.
.
. 2
„
Vegetables
.
.
.
.
.
.
.
.
. 3
„
Total amount
of fæces.
lbs.
Total nitrogen
of
Fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Bajra.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
12th January 1910
.
18.00
34.06
8.478
3.176
3.90
0.5
13th January 1910
.
14.44
55.79
8.478
3.176
3.90
0.5
14th January 1910
.
13.69
43.20
8.478
3.176
3.90
0.5
15th January 1910
.
17.44
61.95
8.478
3.176
3.90
0.5
16th January 1910
.
14.00
50.47
8.478
3.176
3.90
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily
.
.
. 16.054 grms.
fæces per man daily .
. 4.9094 grms
Nitrogen absorbed—11.1446 grms. =69.4 per cent. of nitrogen of diet.
48
SERIAL No. 18.
Ten prisoners under observation for five days.
Wheat
.
.
.
.
.
.
.
. . 6 chittacks.
Bajra
. .
.
.
.
.
.
.
.
. 7
„
Arhar .
.
.
.
.
.
.
.
.
. 2
„
Vegetables .
.
.
. .
.
.
.
. 3
„
Total amount
of fæces.
lbs.
Total nitrogen
of
fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Bajra.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
12th January 1910
.
13.00
40.01
5.652
5.553
3.90
0.5
13th January 1910
.
13.69
54.00
5.652
5.558
3.90
0.5
14th January 1910
.
13.50
50.84
5.652
5.558
3.90
0.5
15th January 1910
.
15.69
61.12
5.652
5.558
3.90
0.5
16th January 1910 .
16.20
56.96
5.652
5.558
3.90
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily .
.
. 15.61 grms.
f æ c e s p e r m a n d a i l y
.
. 5.2586 grms.
Nitrogen absorbed—10.3514 grms. = 66.3 per cent. of nitrogen of diet.
SERIAL No. 19.
Ten prisoners under observation for six days.
Wheat
.
.
.
.
.
.
.
. . 4 chittacks.
Bajra
. .
.
.
.
.
.
.
.
. 8
„
Urid
. .
.
.
.
.
.
.
.
. 2
„
Arhar
. .
.
.
.
.
.
.
. 1 chittack.
Vegetables
.
.
.
.
.
.
.
.
. 3 chittacks.
Total
amount
of
fæces.
lbs.
Total
nitrogen of
fæces
Nitrogen
of
Wheat.
Nitrogen
of
Bajra.
Nitrogen
of
Urid.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
14th December 1909
.
11.00
3 4 3 . 0 8 g r m s .
3.768
6.3526
4.00
1.95
0.5
15th December 1909
.
12.50
3.768
6.3526
4.00
1.95
0 5
16th December 1909
. 15.00
3.768
6.3526
4.00
1.95
0.5
17th December 1909
.
14.00
3.768
6.3526
4.00
1.95
0.5
18th December 1909
. 12.50
3.768
6.3526
4.00
1.95
0.5
19th December 1909
.
11.00
3.768
6.3526
4.00
1 95
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily .
.
. 16.5706 grms.
fæces per man daily .
. 5.7180grms.
Nitrogen absorbed—10.8526 grms. or 65.5 per cent. of nitrogen of diet.
49
SERIAL No. 20.
Four prisoners under observation for six days.
Wheat
. .
.
.
.
. .
.
. 11½ chittacks.
Gram
.
. .
.
.
.
.
.
. 3½ „
Vegetables
.
.
.
.
. .
. 3 „
Total amount
of fæces.
ozs.
Total nitrogen
of
fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Gram.
Nitrogen
of
Vegetables.
2nd March 1910 . .
. .
89.00
16.33
10.1545
5.8758
0.5
3rd March 1910 . . .
.
85.00
17.67
10.1545
5.8758
0.5
4th March 1910 . . . .
96.50
18.41
10.1545
5.8758
0.5
5th March 1910 . . .
. 113.50
22.53
10.1545
5.8758
0.5
6th March 1910 . . . .
62.00
14. 71
10.1545
5.8758
0.5
7th March 1910 . .
. .
95.50
21.14
10.1545
5.8758
0.5
8th March 1910 .
. . .
32.50
8.54
10.1545
5.8758
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily . . . 16.5303 grms.
fæces per man daily . . 4.9721 grms.
Nitrogen absorbed—11.5582 grms.=69.9 per cent. of nitrogen of diet.
In the preceding pages we have recorded the investigations made with a
view of obtaining some idea of the average amount of nitrogen absorbed from
the several diets made use of in the jails of the United Provinces. The results
point undoubtedly to Diet E of the Jail Code as being the best. It presents,
on an average over the province, an intake of 17.09026 grms. of nitrogen of
which 11.64996 grms., or 68.16 per cent., are absorbed. The other diets,
whether given as sanctioned in the Jail Code or as made use of in the different
jails, present a lower intake of nitrogen and are accompanied by a lesser degree
of nitrogenous metabolism, both actually and relatively.
We may summarise the results so far obtained as follows :
—
Diet E.—Intake of 17.09026 grms. Nitrogen absorbed 11.64996 grms.
=68.16 per cent.
Diet A.—Intake of 15.0020 grms. Nitrogen absorbed 9.7080 grms.
=64.7 per cent.
Diet G.—Intake of 14.3793 grms. Nitrogen absorbed 9.2264 grms.
=63.9 per cent.
Diet F.—Intake of 16.2748 grms. Nitrogen absorbed 8.9992 grms.
=55.3 per cent.
Diet B.—Intake of 15.9799 grms. Nitrogen absorbed 9.5291 grms.
= 5 9 . 6 p e r c e n t .
H
50
Diet E+F./2—Intake of 15 . 8912 grms. Nitrogen absorbed 10.0055 grms.
=62 .9 per cent.
Diet in serial No. 14—Intake of 15.0444 grms. Nitrogen absorbed
10 . 0500 grms.=66.8 per cent.
Diet in serial No. 15—Intake of 14.8512 grms. Nitrogen absorbed
10 . 1888 grms.=68.6 per cent.
Diet in serial No. 16—Intake of 14 . 8640 grms. Nitrogen absorbed
10 . 7200 grms. =72.1 per cent.
Diet in serial No. 17—Intake of 16 .0540 grms. Nitrogen absorbed
11.1446 grms. = 4 per cent.
Diet in serial No. 18—Intake of 15 . 6100 grms. Nitrogen absorbed
10 . 3514 grms. =66 . 3 per cent.
Diet in serial No. 19—Intake of 16 . 5706 grms. Nitrogen absorbed
10 . 8526 grms. =65 . 5 per cent.
Diet in serial No. 20—Intake of 16 . 5303 grms. Nitrogen absorbed
11 . 5582 grms.=69 . 9 per cent.
It is, therefore, evident that with the exception of the diet investigated in
serial number 20, which contains too much pulse to be given for any great
length of time, Diet E of the Jail Code is the most suitable of all those under
observation. This explains the partiality for this diet met with in the different
jails. Experience has shown that the prisoners do better on it than on any of
the other official combinations ; so that it is used practically to the exclusion
of all others for at least nine months of the year.
If now we accept that E forms the diet of the prisoners for nine months
in the year and that one or other of the remaining diets is given during three
months in the cold weather, we can estimate the average level of nitrogenous
metabolism attained daily throughout the year. Thus for nine months the
average daily nitrogenous interchanges =11.64995 grms. and for three months
the daily nitrogenous metabolism may be taken as the average value of the
remaining diets.
The average daily absorption from these remaining diets works out to be
10.1945 grms. per man, therefore the average daily nitrogenous interchange
per man is 11.64995
x 3 +10.1945/4 = 11.2860 grms. This works out to be equal
to 67.4 per cent. of the average daily intake of nitrogen throughout the year,
viz., 16.7292 grms.
Therefore, an average daily intake throughout the year of 161292 grms
of nitrogen is provided for in the jail dietaries of the United Provinces, and of
this amount 11.2860 grms., or 67.4 per cent., is absorbed and undergoes
metabolism in the system.
When we come to discuss this diet in the light of further experimental
work, the question will have to be considered whether this level of nitrogenous
51
interchange is sufficient ; if not, how it can be raised, and, more important
still, how the percentage absorbed, 67.47, can be increased so that excessive
waste may be avoided.
SUMMARY AND CONCLUSIONS.
1. The food-stuffs of Allahabad and Benares districts are purer and show a.
higher degree of nitrogenous absorption than those of Agra, Lucknow or
Mainpuri districts.
2. Of all the official diet scales and of several other combinations in
vestigated Diet E of the Jail Code proves itself superior, which explains the
preference shown by all Jail Superintendents for this diet.
It presents on an average throughout the province 17.09 grms. of
nitrogen, or 106.81 grms. of protein, per man daily, and permits of an absorp
-tion of 11.65 grms. nitrogen, or 72.81 grms. of protein.
3. Taking the whole year into consideration the dietaries of the jails of the
United Provinces present an average daily intake of 16.73 grms. nitrogen, or
104.56 grms. protein per man, and are accompanied by an average daily
absorption of 11.28 grms. nitrogen, or 69.50 grms. protein per man
H
2.
52
CHAPTER IV.
The Determination of the Co-efficients of Absorption of the Nitro-
gen offered in the Food-Stuffs entering into the Jail Dietaries of the
United Provinces.
In our work on Bengal Jail Dietaries 1 it was found to be impossible to
obtain any constant figures that would represent the percentages of the nitro-
gen absorbed from the different food-materials in use in Bengal Jails. The
reason for this was ascribed to the very bulky condition of those diets when
cooked. We ascertained that on a gradual increase of any one constituent, as
for instance rice,—the other food-materials entering into the diet being kept
constant in quantity—there is a gradual fall in the percentage of the nitrogen of
the diet that is absorbed and this decrease becomes all the more marked the
more the quantity of rice is increased. There is, therefore, a certain optimum
quantity of rice, when the other constituents are constant, which permits of
the greatest amount of nitrogen being absorbed from such a series of diets. It
is evident, therefore, that with a change in quantity of a bulky constituent
like rice, there will be changes in the percentage of nitrogen absorbed from the
different food-stuffs constituting the diet. In other words, as the bulk of a diet
beyond a certain stage increased the actual and relative amount of protein
absorbed was found to decrease. In Bengal Jail diets we had therefore to deal
with continually varying co-efficients of nitrogen absorption from the different
food-materials, the variations depending on the extent to which the bulk of the
diet interfered with the proper digestion and assimilation of its proximate
principles.
This difficulty is not met with in diets of the type made use of in the jails
of the United Provinces. The ordinary dietaries are nothing like so bulky as
was the case in Bengal. The observations made show that it is quite possible
and fairly simple to obtain figures which represent the nitrogen absorption from
the different food-stuffs, and that those figures are, to all intents and purposes,
constant so long as the same samples of food-materials are experimented with.
Any change, however, in the sample is immediately accompanied by a change
in the percentage of nitrogen absorbed. An illustration will make our mean-
ing clear. Supposing a good sample of wheat shows 80 per cent. of its nitrogen
absorbed, and a good sample of barley shows 55 per cent. of its nitrogen absorb-
ed. Now a certain amount of admixture of these two cereals is practically
always the case, and it will be evident that different degrees of admixture will
show different percentages of protein absorption, although those different admix-
1Scientific Memoirs, No. 37.
53
tures are all classed as wheat. The fact that we obtained different results with
seemingly the same diet in different jails gave us for a time a good deal of
trouble and a certain amount of unnecessary repetition of experiments. The
difficulty arises largely with wheat and barley, although the other food-stuffs
are often mixed to a greater or lesser extent. Government, no doubt recognis-
ing the difficulty of obtaining pure food-materials, only demands second class
quality for jail consumption ; the result of this is that, wheat being by far the
most expensive of the different food-materials, the contractors supply wheat,
unless carefully watched, that contains a very large proportion of barley, juar
or even gram. We have seen samples of wheat sent in for jail consumption
which were fully 50 per cent. barley and, as if that were not sufficient, in which
both wheat and barley were weevil eaten, the grain being considerably damaged.
Needless to say the absorption of nitrogen from diets containing that type of
wheat is far below what should be the case. It is evident, therefore, in order
to get anything like constant results we had to arrange that the same quality
of the different food-stuffs should be given during a series of observations.
When this was done the results worked out remarkably close.
We shall now proceed to record the investigations carried out with a view
of ascertaining the absorption co-efficients of the nitrogen offered in the food-
stuffs entering into the jail dietaries of the United Provinces. Before doing so,
however, for the sake of comparison we shall show what the absorption of nitro-
gen should be from wheat that may be looked on as of first class quality. This
wheat was specially procured for the purposes of the experiment and was a
good deal superior to the ordinary sample of wheat in use in the jail. It showed
on analyses considerably more protein than was present in any other sample of
wheat analysed from jails in the United Provinces, viz., an average of 12 per
cent. as compared with a little over 10 per cent. on an average of the wheat
from different jails.
The Co-efficient of Absorption of the Nitrogen of first class Wheat.
BENARES JAIL.
SERIAL No. 21. BATCH A.
Six prisoners under observation, for five days.
First class Wheat
.
.
.
.
.
.
11½
chittacks.
Arhar
.
.
.
.
.
.
2
„
Vegetables
.
.
.
.
3
„
54
Total amount
of fæces.
lbs.
Total
nitrogen of
fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Arhar.
Nitrogen
of
egetables.
13th January 1910
.
.
.
4.15
19.01
12.314
3.90
0.5
14th January 1910
.
.
.
3.43
17.73
12.314
3.90
0.5
15th January 1910
.
.
.
5.18
23.50
12.314
3.90
0.5
16th January 1910
.
.
.
3.31
15.47
12.314
3.90
0.5
17th January 1910
.
.
.
4.00
16.98
12.314
3.90
0.5
Average intake of nitrogen per
Average output of nitrogen in
man daily .
.
. 16.714 grms.
fæces per man daily .
. 3.0896 grms.
Nitrogen absorbed—13.6244 grms. = 81.5 per cent. of nitrogen of diet.
SERIAL No. 22. BATCH A.
The same six prisoners were kept on the same diet for seven days longer.
Total amount
of fæces.
lbs.
Total
nitrogen of
fæces.
Nitrogen
of
Wheat.
Nitrogen
of
Arhar.
Nitrogen
of
Vegetables.
19th January 1910
.
.
.
4.56
22.42
12.314
3.90
0.5
20th January 1910
.
.
.
2.47
13.87
12.314
3.90
0.5
22nd January 1910
.
.
.
3.03
15.05
12.314
3.90
0.5
23rd January 1910
.
.
.
4.25
20.76
12.31
3.90
0.5
24th January 1910
.
.
.
2.87
15.19
12.314
3.90
0.5
25th January 1910
.
.
.
5.68
25.51
12.314
3.90
0.5
26th January 1910
.
.
.
3.42
15.05
12.314
3.90
0 5
Average intake of nitrogen per
Average output of nitrogen in
man daily .
.
. 16.714 grms.
fæces per man daily .
. 3.04404 grms.
Nitrogen absorbed—13.6699 grms. = 81.7 per cent. of nitrogen of diet.
Therefore, over the twelve days these six prisoners show a daily nitrogen
intake of 16.724 grms. of which 13.651 grms., or 81.6 per cent., are absorbed.
We shall presently see that the nitrogen of arhar plus vegetables shows an
absorption of 84.1 per cent. Therefore, 12.314 grms. nitrogen of wheat shows
13.651—3.7004=9.9506 grms. nitrogen absorbed.
Therefore, 1st class wheat has 80.8 per cent. of its nitrogen absorbed.