468 
SIR ANDREW NOBLE: RESEARCHES ON EXPLOSIVES. 
Experiment 1530.—Fired in explosion vessel R, 90 grammes of Italian ballistite. Density of charge 0‘30. 
Pressure 26 - 35 tons per sq. inch (4016 • 3 atmospheres). 
Permanent gases 55,293‘0 cub. centims. at 0° C. and 760 millims. 
Aqueous vapour 17,801'6 cub. centims. 
Reconciliation. 
C. 
O. 
H. 
N. 
• 
Found by analysis .... 
Originally in ballistite . . . 
grammes 
19-490 
19-789 
grammes 
54- 558 
55- 088 
grammes 
2-361 
2-426 
grammes 
14-427 
13-551 
Differences .... 
- 0-299 
- 0-530 
-0-065 
+ 0-876 
Experiment 1531.—Fired in explosion vessel R, 120 grammes of Italian ballistite. Density of charge 0 - 40. 
Pressure 40-29 tons per sq. inch (6141-0 atmospheres). 
Permanent gases 73,046 * 5 cub. centims, at 0° C. and 760 millims. 
Aqueous vapour 22,902 - 0 cub. centims. 
Reconciliation. 
C. 
O. 
H. 
N. 
Found by analysis . 
Originally in ballistite . 
• 
grammes 
25- 990 
26- 320 
grammes 
72- 788 
73- 280 
grammes 
3-152 
3-230 
grammes 
18-922 
18-030 
Differences . . 
• • 
- 0-330 
- 0-492 
-0-078 
+ 0-892 
Experiment 1605.—Fired in explosion vessel Q, 126-9 grammes of Italian ballistite. Density of 
charge 0-45. 
Pressure 45-57 tons per sq. inch (6945-8 atmospheres). 
Permanent gases 76,776-7 cub. centims. at 0° C. and 760 millims. 
Aqueous vapour 24,569-0 cub. centims. 
Reconciliation. 
C. 
O. 
H. 
N. 
j Found by analysis . . 
| Originally in ballistite . 
. . 
grammes 
27- 637 
28- 000 
grammes 
77-436 
77-946 
grammes 
3-436 
3-433 
grammes 
20-035 
19-181 
Differences . . 
• • 
- 0-363 
- 0-510 
+ 0-003 
+ 0-854 
