the Force of fired Gunpowder. 267 
Table I. Experiments on the Force of fired Gunpowder. 
No. of the Experiment. 1 
Time when the Ex- 
periment was made 
1793- 
State of the 
atmosphere. 
The 
charge of 
Powder. 
Weight employed 
to confine the 
elastic Fluid. 
Thermom. 
Barometer. 
Apoth. nrs. 
In 1000 parts j 
ofthecapaci- 
tyofthebore. 1 
In lbs. 
avoirdu- 
pois. 
In 
atmo- 
spheres. 
No 
h. m. 
F. 
Eng. In. 
g rs 
Parts. 
lbs. 
6 3 
6th Mar. 3 30 
42 0 
28.3 
13 
507 
2266.5 
E 
64 
3 45 
— 
— 
— 
2390.3 
R 
65 
4 0 
— 
— 
— 
— 
2422 
3288.3 <j 
66 
9th 9 0 
43° 
28.31 
h 
546 
3213 
l! 
67 
9 3° 
— 
— 
— 
— 
3093 
IS 
68 
10 0 
— 
— 
— 
— 
2968 
Is 
69 
10 30 
— ; 
— 
— 
— 
2846 
R 
70 
10 45 
— 
— 
— 
— 
2908 
R 
7* 
11 0 
— 
— 
— 
— 
2939 
C 
72 
11 15 
— 
— 
— 
— 
2951 
4008 < 
73 
11 30 
— 
— 
585 
375° 
IS 
74 
11 45 
— 
— 
— 
— 
3508 
N 
r 
75 
12 15 
— 
— 
— 
— 
3477 
4722.5 j 
76 
nth 9 0 
43° 
28.3 
16 
624 
4037 
{ 
77 
9 15 
— 
— 
— 
— 
4284 
it 
78 
9 3° 
— 
— 
— 
— 
4532 
D 
79 
4th Apr. 3 0 
7°° 
28.2 
— 
— 
5027 
D 
80 
3 l 5 
— 
— 
— 
— ■ 
5138 
R 
81 
3 3° 
— 
— 
~ 
5262 
N 
r 
82 
3 45 
— 
— 
— 
— 
5220 
7°9° < 
83 
5th 3 0 
80 
MO 
28.3 
r 7 
663 
8081 
N 
r 
84 
3 3° 
— 
— 
18 
702 
8081 
10977 
85 
4 0 
. 
— 
8700 
General Remarks. 
moved, no 
report. 
report. 
and no report, 
rhe weight was 
report weaker. 
raised 
report. 
a very sharp report, louder 
than that of a well loaded 
musket. 
' The vent tube of the bar- 
rel was burst, the explo- 
sion being attended with 
a very loud report. 
MDCCXCVII. 
Nn 
