812 
DE. SMITH ON THE ELimNATION 
Table XXXVIII. — Showing the amount of Nitrogen and Mineral Matter evolved daily 
in the Faeces of four Prisoners, and placed under the preceding day. 
Ficces. 
Total 
fasces, 
average. 
Total 
nitrogen. 
In 1 oz. of fresh fseces. 
No. 858. 
No. 948. 
No. 1040. 
No. 1041. 
Water. 
Nitrogen. 
March. 
OZ. 
OZ. 
OZ. 
OZ. 
OZ. 
grs. 
per cent. 
grs. 
1. 
9-75 
4*25 
6 I 
2*5 
5*62 
2. 
7 
11*9 
6 ) 
14*75 
9*91 
39-7 
73*8 
4*363 
Wheel 
3. 
5-5 
4*25 
10*75 
9*08' 
7*4 
35*87 
72*6 
4*848 
Sunday 
4. 
17 
12 
24*9 
9*08 J 
15*74 
69*25 
73*2 
4*4 
5. 
19 
5*66 
12*5 
6*4 1 
1 
10*89 
49 
77*6 . 
4-5 
Wheel 
6. 
4-15 
6*5 
17 
6*4 
r 
8*51 
42*2 
73*7 
4*96 
7. 
7-75 
5*15 
9*25 
13*3 1 
1 
8*86 
43*23 
73 
4*88 
Wheel 
8. 
11*41 
4 
12 
13*3 J 
f 
10*1 
45*75 
72*8 
4*52 
9. 
8*12'1 
7*75 
2*4 / 
•871 
4*8 
21*22 
74*3 
4*42 
Wheel 
10. 
8*12/ 
1*75 
2*4 / 
•87 1 
3*78 
Sunday 
11. 
9-75 
12 
10*4 
11*5 
10*91 
50*59 
73 
4*637 
12. 
4*75 
4*25 
8*5 
5*45 1 
5*71 
27*17 
71*8 
4*76 
Wheel 
13. 
8*66 
] 1*34 
9-5 
5*45 f 
8*74 
42*86 
72 
4*904 
14. 
8*5 
10*25 
10*5 
7-9 1 
9-28 
41*46 
74*1 
4*468 
Wheel 
15. 
9*5 
5*75 
9*25 
7-9 J 
8*1 
36 
73*3 
4*45 
The weight of faeces evolved per day was on the whole average 8‘55 oz., and in the 
different cases 9-26, 7T, lOT, and 7’64 in their order; but it varied on different days 
from 24-9 oz. with daily evacuations, and 26 '59 oz. with evacuations on alternate days to 
1'75 oz. The uniform weight of solid food taken daily was 38 oz., and consequently 
the weight of the faeces on the average was 22^ per cent, of that of solid food. 
The largest emission of faeces was on the Sunday, when it was 44’ 3, 70, and 74 per 
cent, higher than the average of all the days in the three first-mentioned cases. 
There was a smaller evacuation on the wheel days than on the average of all days, in 
t^'O of the cases to the extent of 14-8 and 21T per cent. ; but in the third case both 
averages were the same. The average diminution, as compared with the quantities 
evacuated on Sundays, was 41, 53’3, and 42‘6 per cent. The least evacuation occurred 
on the Satiu’day, which was also a treadwheel day ; and in the three cases the diminution 
below the whole average was 26T, 57*6, and 34'6 per cent. ; but it was less than that of 
the Sunday by no less than 48, 75, and 62 per cent. 
The amount of water contained in the faeces was very uniform, viz. 73'5 per cent, on 
the average, and varied only from 71’8 to 77'6 per cent, on different days. It was not 
above the average on Sundays, and it was a little below the average on the treadwheel 
days. The quantity of nitrogen in each ounce of fseces varied from 4‘36 to 4' 9 grs., and 
on the average it was 4‘646 grs. The total quantity contained in the daily evacuation 
of faeces was an average amount of 41-8 grs. There was a considerable increase on the 
Sunday, and a marked decrease on Saturday, and it was below the average on the tread- 
wheel days, — the actual amount on the three days being 59-9, 35'8, and 40‘53grs., or 
an increase of 43' 3 per cent., and a decrease of 14‘3 and 3 per cent. 
Hence on Sundays there was a diminution in the amount of urea evolved from 
March 2 to the 16th, of 13 grs. and 18 grs. in the first two cases, but there was increase 
