SURCHARGING OF ORDNANCE, 523 



pass through, is heated, the surrounding powers of 

 attraction are weakened, and the flame is enabled 

 to proceed to a greater distance, 



Although I have thus for the present brought 

 this curious investigation to a close, yet should any 

 other important circumstances connected with the 

 apparatus, occur at a future period, I shall not hesi- 

 tate to fulfil my duty to the Society, by laying the 

 whole before them, 



February 



