upon Gun-powder, &c* 245 
General table of the experiments . 
In the two firft: experiments the barrel was fixed to a carriage 
(that has not been defer Ibed) which, together with the barrel 
and rods bj which it was fufpended, weighed only 23 §. 
Length of the bore of the piece 43,5 inches. 
Weight of the bullet 5 Bo grains. 
The pendulum, N° 1. 
Order of the expe- 
riments. 
The 
charge of 
powder. 
Vent from the hot- 
torn of the charge. 
Chord of the amend- 
ing arc of the pen- 
dulum. 
The bullet ftruck the 
target below the axis 
of the pendulum. 
[ Chord of the arc of 
the recoil. 
Velocity of the 
bullet. 
Remarks. 
1 
Weight. 
Height. 
N° 1 
2 
Grs. 
In. 
In. 
Inches. 
Inches. 
In. 
Ft. in 
Sec. 
Firft day. 
. to 
0 
• CO 
1,8 
• • 
O, 
»5 
13,2 
1 4,5 
64G 
• • • 
33,5 
3 6 >5 
1267 
1399 
This gun carriage being found to be too light, the other, 
deferibed, and reprefented fig. 8. was fubftituted in the room of 
it. 
Vol. LXXL 
Order 
