Experifnejits ttpon Gtmpowder. 



25 



Of the Method made Use of for computing the Velocities of 



the Bullets. 

 As the method of computing the velocity of a bullet 

 from the arc of the vibration of a pendulum into which 

 it is fired is so well known, I shall not enlarge upon it 

 in this place, but shall just give the theorems that have 

 been proposed by different authors, and shall refer those 



