THE ROYAL ARTILLERY INSTITUTION, 
139 
Table YI.— Continued . 
TWO BURBAGES# 
THROUGH GUN-METAL. 
Number 
of experiment. 
©3 
5 1 
O 
| P, amount of pressure. 
j y, pressure per square 
inch =-gf 
B. wfc. tc 
overcome 
friction 
of 
motion. 
J«|* 
i 11 
d 
* ! 
i i 
© tw 
© O 
o* 4 
I, impact 
of b. 
.d © 
. © fee-e 
Remarks, 
1 
A, mean an- J 
arular fall of 5. ! 
V } velocity 
of b. 
M, motion, of th 
piece drawn throu 
in inches per minu 
For each 
expmt. 
i 
© 
a 
in. 
lbs. 
lbs. 
lbs. 
0 
ft. 
1 
834 
per see 
133 2 
84 
35 
824 
824 
•368 
30 
3-79 
0*63 
Regular. 
3 
a 
814 
1 
i 
669 
134 2 
bJO 
32 
70 
625 
643 
•287 
30 
3-79 
1*17 
Regular. 
3 
645 
1 
g 
580 
135 2 
2 
10 
140 
570 
570 
•255 
0 
0 
0-7 
Regular. 
3 
£ 
660 
© 
d 
1510 
) 
136 1 
- & 
4 
560 
to 
[ 
... 
... 
... 
Surfaces of pine destroyed. 
1926 
) 
1 
889 
137 2 
"3 
64 
35 
879 
879 
•393 
0 
0 
0-21 
Regular. 
3 
© 
869 
1 
a 
884 
138 2 
d 
32 
70 
869 
871 
•388 
30 
3*79 
0-21 
Regular. 
3 
bfi 
859 
1 
9 "€L 
869 
139 2 
Qfi 
s 
16 
140 
879 
882 
•393 
0 
0 
0-14 
Regular. 
3 
2 
899 
1 
-d 
979 
140 2 
t-4 
4 
660 
951 
958 
•428 
0 
0 
0-75 
Regular. 
3 
923 
4. 
979 
1 
1724 
141 2 
3 
64 
35 
1744 
1729 
•771 
30 
3*79 
30 
Regular. 
3 
© 
a 
1719 
1 
d 
1427 
142 2 
gp 
32 
70 
1491 
1495 
•660 
30 
3-79 
1*25 
Regular. 
3 
1561 
1 
.2 
1491 
143 2 
-*» 
18 
140 
1839 
1791 
•800 
0 
0 
20 
Irregular. 
3 
2042 
1 
"© 
1259 
144 2 
a 
4 
560 : 
1147 
1245 
•556 
0 
0 
Motion irregular and jerky. 
3 
§ 
1203 
4 
# * 
1371 
1 ? 
[VOL. YI.] 
