i6 



Experiments icpon Gunpowder. 



quiries as well as the result of them, I shall first give a 

 table of the experiments in the exact order in which 

 they were made, together with my original remarks ; I 

 shall then make such general observations as may occur ; 

 and afterwards I shall select, combine, and compare 

 them, in the manner which may best answer the differ- 

 ent purposes to which I shall apply them. 



General Table of the Experiments. 



In the two first experiments the barrel was fixed to a 

 carriage (that has not been described), which, together 

 with the barrel and rods by which it was suspended, 

 weighed only 23^ Ibs. 



Length of the bore of the piece, 43.5 inches. 



Weight of the bullet, 580 grains. 



'The Pendulum No. I. 



This gun-carriage being found to be too light, the 

 other, described above, and represented Fig. 8, was 

 substituted in the room of it. 



