Besearclies mi Modern Explosives. 



231 



DiAGBAM 3. 



a, ^BtxLiaHibe ;f<so% Nibro^Lycer'me, 70%GuncoCCon). 

 b = GuncoHbon . 



£00 



l&O 



C 100 



.o 

 y 



V 



/ 



152 



a 



125 



3 

 33 



4 



6b 



5 

 55 





















^b 







' 1 



1 













■ i 









\ ■ 



































55^ 25 

 Area 



/oo,ooo 



a 9 ioN9of CoupLe. 



17 II a 



of Wirez 

 of cxn inch. 



another series of experiments, the results of which are indiciited in 

 Diagram 4. 



DiAGBAM 4. 



200 



NATURE •5^^' SoLuhLeNH;rocotton,50\NibrQ<^ucerine. 



OF ^ " " -30% 



Ared. of CoupLe in ^-^^^ofan inch 



The vertical lines indicate, as before, the maximum deflection of the 

 galvanometer obtained vnth charges of 4 grammes with couples 2 and 5 

 for the folloT\'ing explosives : Gun-cotton, cordite, ballistite of 70 per 

 cent, soluble nitro-cotton, and 30 per cent, nitro-glycerine, and ballistite 

 containing 50 per cent, soluble nitro-cotton and 50 per cent, nitro- 

 glycerine. 



In the same way as in Diagram 2, each of the points corresponding 

 have been connected by straight lines to show the parallelism of the 

 observations. 



It will be seen from the diagram that the larger the proportion of 

 nitro-glycerine in the ballistite the higher is the temperature during; 



