upon Gun-powder, 287 
By the following table the refult of thefe experiments may 
be feen at one view. 
• 
in 
0 
» « 
Velocity of tils' 
. ; V 
G 
<L» 
jc 
bullet. 
S 
n G 
' £ 
O *-» 
}-< — 
f - 
™ ’ A 
• 
<L> 
U — < 1 
0 
u 
0 
}~< 
<u . 
-c rq 
w 0 
cs 
<D G 
*~ J Z, 
0 
8 S 
<u 
V 3 
0 
pq K 
pq fi 
<L> 
cu 
y . 
h 
h 
a 
W 
84th and 93d 
Grs. 
B"“ 
Crr 
= 4,4 
v — 
85th “ 
90 
3733.3 
7,16 
2109 
1763 
+346 
86th 
25 1 
i 33 8 ,6 
9,62 
H 3 ° 
1317 
87th 
354 
949 . ‘S 
1 i j°3 
1288 
11 36 
+152 
88th 
600 
S6°» 
15,22 
1240 
1229 
+ 11 
89th 
603 
557.22 
i 5 ,i 3 
1224 
1229 
+ 5 
90th 
1184 
283,78 
21,92 
1017 
978 
- 39 
91ft 
*754 
i 9 I > 5 6 
27,18 
893 
916 
- 23 
92d 
2352 
141,86 
32,25 
812 
833 
— 2 r 
The charge of powder confifted of 145 grains in weight in, 
each experiment* 
In order to fihew* in a more ftrikitig manner, the refult of 
thefe experiments, and the comparifon of the two methods of 
afcertaining the velocities of bullets, I have drawn the fig. 16* 
where the numbers that are marked upon the line AB are taken 
from A towards B, in proportion to the weights of the bullets ; 
while the lines drawn from thofe numbers perpendicular from 
AB (as w, V) for inftance, at the number 2352) and ending at 
the curve c, d , exprefs their velocities, as Ihewn by the pendu- 
lum. The continuation of thofe lines on the oppofite fide of 
the line AB fhew the recoil, and alfo the velocities of the bul- 
lets as determined from it; thus w, r, and the (dotted) lines 
2 Q^2 parallel 
