252 Mr. Thompson’s Experiments 
the fame diameter as the plaifter bullet was lighter than a leaden 
bullet of the fame iize. 
In the experiments N° 88. and N° 89. folid leaden bullets 
were made life of. In the experiment N° 90. two bullets were 
difcharged at once ; in the experiment N° 91. three ; and in the 
-experiment N° 92. four w r ere ufed. 
In each of thefe experiments a frefh fheet of paper was made 
ufe of as a fcreen to the pendulum, in order that the velocities 
of the bullets might be meafured mote accurately ; and alfo, 
that the quantity of unfired powder might be eflimated with 
greater precifion. 
CL, 
X 
V 
<D 
QJ 
O 
N° 
84 
85 
86 
8? 
88 
89 
90 
9 1 
92 
1 
char 
pow 
4-J 
bp 
' QJ 
he 
ge of 
der. 
• 
r-< 
f fc a 
"0 
rc 
Vent from the hot- 
torn of the charge. 
Vl'e.ght of the 
bullet. 
Chord of the amend- 
ing arc of the pen- 
dulum. 
Grs. 
In. 
In. 
Grs. 
Inches. 
145 
h 3 
0 
— 
• * 
9 9 
• • 
90 
C 33 
0 • 
• 0 
• * 
251 
2,82 
• • 
• • 
• • 
354 
3 ? 3 2 
• • 
• • 
• • 
600 
6,5 
• • 
#, c 
• • 
603 
6,3 
• • 
• • 
• • 
1184 
10,12 
. . 
» • 
• » 
1754 
*3,65 
• • 
• « 
• • 
23 S^ 
I . 6,55 
I W-* 
« X Q 
•*— ' CS C 3 
<L> S 
2 1) - 
•A ^ 
% | | 
v_ O -*■ 
24 U <L> 
<-> -O -2 
2d « 
-“ * QJ 0 -U 4 
oh O 
22 
Inches. 
62.2 
63.2 
61.2 
65,4 
64,6 
65> 
63* 4 
4 h 
o 
ZJ 
S 
<L> 
-C ■ 
•w 
Uh 
Q 
"O 
u. 
O 
r- 
V 
o 
<L> 
Inches. 
6 
O /T 
4,5 
7 , i 6 
9,62 
”,3 
15,22 
15,13 
21,92 
27,18 
32,25 
<u 
xj 
O 
<L 
t: ~ 
o 25 
o 
> 
Ft. in 
fee 
Remarks. 
!7 6 0 
* 3*7 
1136 
1229 
1229 
978 
916 
o n 
DC) 
8th clay ; in each of thefe 4 
experiments from 50 to 
1 70 granules or particles of 
unfired powder were dri- 
ven through the fcreen. 
1 Very few unfired grains of 
j powder Itruck the fcreen 
3 There were no marks of 
1 any unfired powder hav- 
j ing reached the fcreen. 
In 
