148 
CAPTAIN NOBLE AND MB. F. A. ABEL ON FIEED GTJNPOWDEK. 
Weight of cylinder 
„ water 
Temperature of cylinder before experiment 
„ water „ 
15,340-0 
57°-5 F. 
60°-45 F. 
and the heat generated by the explosion raised the common temperature of the cylinder 
and water to 80 o, 45 F. (26°-87 C.). Hence the steel was raised through 22°-95 F.= 
12°-75 C.; water through 20°-00 F.=ll°-ll C. 
Residue and gas collected from this experiment. 
S. 
•8000 
A. 
•0833 
•083! 
Crush, copper 
cylinder. 
•117 
Pressure 
in tons. 
27T 
Experiment 48. — Fired 3800 grs. (246-286 grms.) F. G. in same cylinder as before, 
and with the same arrangements. On placing the cylinder in the water a few very 
small bubbles escaped from the firing-plug, and this slight escape continued during 
the experiment. 
Weight of cylinder 72,688'0 grms. 
„ water 14,158 „ 
Temperature of cylinder before experiment . 56 0, 5 F. 
„ water „ . 59°T5 F. ; 
and the heat generated by the explosion raised the common temperature to 71°"9 F. 
(22°T5 C.). Hence the steel was raised through 15 0, 4 F. = 8 0, 5 55 C. ; water through 
12°-75 F. = 7°-083 C. 
Amount of deposit=1038 grs. (67'262 cub. centims.). The deposit seemed to have 
contracted, since solidification, from -2 to *25 inch. 
■5000 
A. 
•0833 
•0417 
Crush, copper 
cylinder. 
•090 
Pressure 
in tons. 
10-48 
Experiment 49.— Fired 6080 grs. ( 3 9 3 • 9 7 8 grms.) R. L. G. in same cylinder Cylinder 
perfectly tight, but before placing in water crackling sound noticed. 
Cylinder weighed 72,688 grms. 
Water „ 14,845 „ 
Temperature of cylinder before explosion . . 46 0- 2 F. 
„ water „ . . 51°-85 F. 
„ room ■ . 61° F. ; 
and the heat generated raised the common temperature of cylinder and water to 
71 0- 32 F. Hence steel raised through 25 9 T2 F.=13 0, 95 C. ; water through 19° - 47 F. 
=10°-82 C. 
