the Combustion of Gun-cotton and Gunpowder, 



273 



For Ordnance Powder. 



Carbon . . 



. 81-200 



Hydrogen . 

 Oxygen . . 

 Ash ... , 



. 2-865 

 . 13-599 

 . 2-336 



100-000 



For Small-arms Powder. 



Carbon 82-90 



Hydrogen .... 2*99 



Oxygen 12*14 



Ash 1-97 



10000 



Hence the percentage composition of both these kinds of 

 powder is as follows : — 



Charcoal. 



Ordnance Powder. 



Nitrate of potash . 

 Sulphur 



f Carbon 

 Hydrogen 

 Oxygen 

 Ash . . . 



73-78 



12-80 



10-88 



0-38 



1-82 



0-31 



100-00 



Charcoal. 



Small-arms Powder. 



Nitrate of potash . 

 Sulphur 

 r Carbon . . 

 Hydrogen . 

 Oxygen 

 Ash . . 



The composition of the powder analysed by Bunsen and 

 Schischkoff was — • 



. 78-99 



. 9-84 



. 7-69 



. 0-41 



. 3-07 



, 000 



100-00 

 Phil. Mag. S. 4. Vol. 26. No. 175. Oct. 1863. 



Nitrate of potash 

 Sulphur . 

 /-Carbon . 



Charcoal. J ^vo&n 



\ Oxygen . 



[Ash . . 



