CAPTAIN NOBLE AND MR F. A. ABEL ON FIRED GUNPOWDER. 
•239 
Table XI. — concluded. 
Number of 
volumes 
of expansion. 
Corresponding 
density of 
products of 
combustion. 
Total work that gunpowder is capable of performing. 
Per kilogramme 
burned in 
metre tonnes. 
Difference. 
Per lb. 
burned in 
foot-tons. 
Difference. 
7-20 
T39 
72T41 
•362 
105‘655 
•530 
7-30 
•137 
72-497 
•356 
106T76 
•521 
7-40 
T35 
72-847 
•350 
106-688 
•512 
7 - 50 
133 
7 3T91 
•344 
107-192 
•504 
7‘60 
•131 
73-530 
•339 
107-688 
•496 
770 
•130 
73-864 
•334 
108-177 
•489 
7-80 
T28 
74T93 
•329 
108-659 
•482 
7-90 
•126 
74'517 
•324 
109-133 
•474 
8-00 
T25 
74-836 
•319 
109-600 
■467 
810 
123 
75T50 
•314 
110-060 
•460 
8-20 
•122 
75-460 
•310 
110-514 
•454 
8-30 
T20 
75-766 
•306 
110-962 
•448 
8-40 
T19 
76-068 
•302 
111-404 
•442 
8-50 
T17 
76'366 
•298 
111-840 
•436 
8 -GO 
T16 
76-660 
•294 
112-270 
•430 
870 
T15 
76'950 
•290 
112-695 
•425 
8-80 
■114 
77-236 
•286 
113-114 
•419 
8-90 
T12 
77-519 
•283 
113-528 
*414 
9-00 
111 
77-798 
■279 
113-937 
•409 
9T0 
•no 
78-074 
•276 
114-341 
•404 
9-20 
T09 
78-346 
•272 
114-739 
■398 
9-30 
T08 
78-615 
■269 
115-133 
•394 
9-40 
•106 
78-880 
•265 
115-521 
•388 
9-50 
T05 
79T42 
■262 
115-905 
•384 
9-60 
T04 
79-401 
•259 
116-284 
•379 
970 
T03 
79-657 
•256 
116-659 
•375 
9-80 
T02 
79-910 
■253 
117-029 
•370 
9-90 
T01 
80T60 
•250 
117-395 
•366 
10 
TOO 
80-407 
■247 
117-757 
•362 
11 
•091 
82734 
2327 
121T65 
3-408 
12 
•083 
84-833 
2-099 
124-239 
3-074 
13 
•077 
86'743 
1-910 
127-036 
2-797 
14 
•071 
88-945 
1-752 
129-602 
2-566 
15 
•066 
90T12 
1-617 
131-970 
2-368 
10 
•062 
91-613 
1-501 
134-168 
2-198 
17 
•059 
93-013 
1-400 
136-218 
2-050 
18 
•055 
94-324 
1-311 
138-138 
1-920 
19 
•052 
95 - 557 
1-233 
139-944 
1-806 
20 
•050 
96-720 
1-163 
141647 
1-703 
21 
•047 
97-820 
1-100 
143-258 
1-611 
22 
•045 
98-865 
1-045 
144-788 
1-530 
23 
•043 
99-858 
•993 
146-242 
1-454 
24 
•042 
100-805 
•947 
147-629 
1-387 
25 
•040 
101709 
•904 
148-953 
1-324 
30 
•033 
105-701 
3-992 
154-800 
5-847 
35 
•028 
109-024 
3323 
159-667 
4-867 
40 
•025 
111-865 
2-841 
163-828 
4161 
45 
•022 
114-342 
2-477 
167-456 
3-628 
50 
•020 
116-537 
2195 
170-671 
3-215 
Thus if we wished to know the maximum work of a given charge fired in a gun with 
such capacity of bore that the charge suffered five expansions during the motion of 
