Mr. Thompson’ & Experiments 
2-54 
Order of the expe- 
riments. 
The 
charge of 
powder. 
Vent from the bot- 
tom of the charge. 
Chord of the amend- 
ing arc of the pen- 
dulum. 
Bullet {truck the tar- 
get below the axis 
of the pendulum. 
Chord of the arc of 
the recoil. 
w 
, • 
0 « 
Remarks. 
Weight. 
Height. 
■ 
3 3 
u -Q 
_o 
<u 
> 
; N° 
100 
IOX 
, 102 
Grs. 
In. 
In. 
Inches. 
Inches. 
Inches. 
Ft. in 
fee. 
» (>s 
• 0 
1 >45 
• • 
0 
• • 
,6S 
,43 
,80 
60, s 
uncertain. 
63, 
4>9 
4,8 
5,6 
138 
92 
180 
■ 
-In each of thefe experim. 
near T Vth part of the fub- 
ftance of the bullet was 
melted and blown away by 
.the impulfe of the flame. 
All that part of the bullet which lay towards the bore of 
the piece appeared to<be quits flat from the lofs of fubftance it 
had fuftained ; and its furface was full of fmall indents, which 
probably were occalioned by the unfired grains of powder that 
impinged again# it. 
, ' ! ' ! , ■ 
I ’ ' 4 < . t 
» , ■; : * j . . s - 
* \ ‘ [ 
The 
I 
