144 
CAPTAIN NOBLE AND MR. F. A. ABEL ON FIRED GUNPOWDER. 
Experiment 29, October 19, 1872. — Fired 6344 grs. (411-09 grms.) F. G. in cylinder 
No. 6. 
x . Crush, copper Pressure 
A " a ' cylinder. in tons. 
•4258 -0834 -0417 -074 9-34 
Experiment 30, October 21, 1872. — Fired 7930 grs. (513-86 grms.) F. G. in cylinder 
No. 6. 
5 . Crush, copper Pressure 
cylinder. in tons. 
•5322 -0834 -0417 -104 11-48 
Experiment 31, October 29, 1872. — Fired 3507-5 grs. (227‘286 grms.) F. G. in cylinder 
No. 7. 
^ . Crush, copper Pressure 
cylinder. in tons. 
•4615 -0833 -0417 -065 8-68 
Experiment 32, October 31, 1872. — Fired 3719 grs. (240-991 grms.) F. G. in cylinder 
No. 7. 
^ ^ Crush, copper Pressure 
cylinder. in tons. 
■4893 -0833 -0417 -085 10-14 
Experiment 33 (repetition). — Fired 2980 grs. (193-104 grms.) P. in cylinder No. 6. 
» . Crush, copper Pressure 
cylinder. in tons. 
•200 -0833 -0417 -006 2-70 
Experiment 34 (repetition). — Fired 4470 grs. (289-656 grms.) P. in cylinder No. 6. 
^ . Crush, copper Pressure 
S. A. a. t a LL ■ i. 
cylinder. m tons. 
•300 -0833 -0417 -020 5-40 
Experiment 35. — Fired 4560 grs. (295-488 grms.) P. in cylinder No. 7. 
g a Crush, copper Pressure 
cylinder. in tons. 
•600 -0833 -0417 -136 13-78 
Experiment 36. — Fired 4560 grs. (295-488 grms.) P. in cylinder No. 7. Gas escaped. 
g A Crush, copper Pressure 
cylinder. in tons. 
•600 -0833 -0417 -132 13-50 
Experiment 37, November 26, 1872. — Fired 4560 grs. (295"488 grms.) P. in cylinder 
No. 7. 
