470 
SIR ANDREW NOBLE: RESEARCHES ON EXPLOSIVES. 
Experiment 1536.—Fired in explosion vessel Q, 62 grammes of Norwegian ballistite. Density of 
charge O’20. 
Pressure 14’62 tons per sq. inch (2228’4 atmospheres). 
Permanent gases 49,158-5 cub. centims. at 0° C. and 760 millims. 
Aqueous vapour 8036 • 2 cub. centims. 
Reconciliation. 
C. 
O. 
H. 
N. 
Found by analysis .... 
Originally in ballistite . 
grammes 
17-143 
17-600 
grammes 
34-967 
34-856 
grammes 
2-056 
2-012 
grammes 
8-787 
8-392 
Differences .... 
- 0-457 
+ 0-111 
+ 0-044 
+ 0-395 
Experiment 1539.—Fired in explosion vessel Q, 77’5 grammes of Norwegian ballistite. Density of 
charge O’25. 
Pressure 18’77 tons per sq. inch (2860 • 9 atmospheres). 
Permanent gases 60,392’5 cub. centims. at 0" C. and 760 millims. 
Aqueous vapour 9685’8 cub. centims. 
Reconciliation. 
C. 
O. 
H. 
N. 
Found by analysis .... 
Originally in ballistite . . . 
grammes 
21-622 
22-117 
grammes 
44-029 
43-800 
grammes 
2-478 
2-528 
grammes 
10-865 
10-545 
Differences .... 
- 0-495 
+ 0-229 
- 0-050 
+ 0-320 
Experiment 1540.—Fired in explosion vessel Q, 93 grammes of Norwegian ballistite. Density of 
charge 0 • 30. 
Pressure 23’60 tons per sq. inch (3597 • 1 atmospheres). 
Permanent gases 70,096’7 cub. centims. at 0° C. and 760 millims. 
Aqueous vapour 11,623’9 cub. centims. 
Reconciliation. 
C. 
O. 
H. 
N. 
Found by analysis .... 
Originally in ballistite . . . 
-Differences .... 
grammes 
25- 889 
26- 517 
grammes 
53-121 
52-513 
grammes 
2- 988 
3- 031 
grammes 
12-706 
12-643 
- 0-628 
+ 0-608 
- 0-043 
+ 0-063 
