132 
MINUTES OF PROCEEDINGS OF 
March 7, 1861.—Barometer (32°), 30*050. Therm, (dry), 51°-0. Therm., wet, 49°*0, Elastic force 
of vapour,’321. Humidity, *86. Weight of cubic foot of air, 544 • 2 grs. To ascertain the initial 
velocities of the 10-in. hollow shot and Martin’s shells, fired with service charges. 
No. of Rounds. 
Nature of Ord¬ 
nance. 
Charge. 
Projectile. 
Re¬ 
coil. 
Reading of 
Needle. 
Velocity. 
Range. 
Remauks. 
Nature. 
Dia¬ 
meter. 
Weight. 
Dis- 
junctor. 
Pro¬ 
jectile. 
At 
30 yds. 
Initial. 
lbs. oz. 
lbs. oz. 
/ 
// 
O 
O 
ft. 
ft. 
yds. 
r i 
•+J • 
12 8 
1 
i c! 
9*83 
88 12 
43*65 
103*80 
1270*1 
337 8 
Gun laid p. b. every 
2 
Us 
9*84 
87 12 
43*80 
* 
— 
324* 
round with spirit 
3 
•s 0 
« J) 
9*84 
88 4 
43*70 
102*65 
1298*3 
373*5 
level. Mounted 
4 
99 99 
«o* 
9*84 
87 8 
43*85 
103*75 
1271*2 
385*5 
on a rear chock 
5 
99 99 
pc-g 
9-84 
89 0 
6 
6 
43*85 
103*55 
1275*7 
382*5 
carriage weight. 
6 
99 99 
9*83 
87 8 
6 
6| 
43*85 
103*65 
1273*5 
■1292*3^ 
— 
Slope of platform, 
w - 
7 
g js 
99 99 
6E O 
9*84 
88 8 
6 
8} 
43*60 
101*35 
1257*8 
358*7 
5°. 
8 
99 99 
9*85 
89 12 
6 
5 
43*85 
105*60 
1230*7 
360* 
* Observation des¬ 
9 
-o 
99 99 
9*84 
89 8 
6 
9 
43*85 
104*05 
1264*5 
Mean 
382* 
troyed by proof. 
10 
a 
99 99 
a 
9*83 
89 0 
6 
5 
43*60 
104*05 
1264*5 
496*3 
tNot observed. 
11 
99 99 
o 
9*83 
88 4 
6 
11 
44*00 
t 
— 
1270*4 
254*3 
t Signal mistaken. 
112 
. a* 
9*84 
87 0 
6 
11 
43*90 
102*70 
1299*3 
264* 
Weight of carriage. 
ris 
8 0 
9*84 
117 4 
5 
8! 
43*90 
121*45 
951*7 
383* 
20cwt. lqr. Pow¬ 
14 
60 £ 
9-84 
117 0 
5 
9 
37*10 
118*75 
904*3 
940*6 
391*5 
der, L. G., W. A., 
K - 
15 
rj ° 
99 99 
© 
9*84 
117 1 
5 
9 
37*25 
119*45 
895*2 
3^9*7 
26/11/60. Lot 260 
16 
.5 
i OO 
99 99 
■?*S*I 
9'83 
117 4 
5 
10 
37*10 
114*00 
969*2 
Mean 
333* 
for hollow shot. 
U7 
o 
99 99 
o.S.5 
9*84 
116 13 
5 
9 
37*00 
t 
— 
930*1 
357*0 
L. G., Hall and 
Sons, 22/11/60. 
Lot 814. i 
March 8, 1861.—Bar. (32°), 30*170. Therm, (dry), 54°*3. Therm., wet, 51°*8. Elastic force of 
vapour, *352. Humidity, *833. Weight of cubic foot of air, 542*6 grs. To ascertain the initial 
velocities of the 68-pr. shot, naval, common, and Martin’s shells, fired with service charges. 
lbs. oz. 
lbs. 
oz. 
/ 
// 
o 
O 
ft. 
ft. 
yds. 
r i 
16 
0 
7*92 
66 
4 
4 
0 
39*75 
88*25 
1568*4 
337*7 
Gun laid horizontal 
2 
99 
7*92 
66 
3 
5 
7 
49*10 
99*25 
1544*0 
324*0 
by spirit level 
3 
99 
■g 
7*91 
66 
3 
5 
10% 
49*35 
99*10 
1548*9 
373*5 
every round. 
4 
•S 
9 
rg 
7*92 
66 
4 
5 
10i 
49*55 
99*90 
1523*3 
385*5 
Height of axis of 
5 
CO 
99 
99 
rg 
7*91 
66 
4 
6 
0 
47*75 
97*35 
1555*3 
1579*0 
382*5 
gun above plane, 
6 
00 
9 
9 
7*91 
66 
3 
6 
0 
47*80 
97*45 
1552*1 
434*0 
4 ft 3 in... Car¬ 
l-H 
7 
OO 
"o 
7*92 
66 
3 
4 
5i 
47*75 
97*55 
1548*8 
Mean 1 
358*7 
riage rear chock. 
8 
<o 
99 
7*91 
66 
3 
4 
47*85 
96*65 
1578*3 
1553*3 
360*0 
Slopeof platform, 
9 
99 
99 
7*92 
66 
3 
4 
7 
47*90 
97*05 
1565*1 
382*0 
5°. 
10 
& 
7*91 
66 
4 
4 
9\ 
47*40 
96*95 
1555*1 
496*3 
Recoil printed in 
11 
r ci 
7*91 
66 
5 
5 
ol 
47*50 
97*00 
1553*5 
254*4 
italics denotes 
Ll2 
7*92 
66 
4 
5 
4* 
47*45 
97*20 
1547*1 
264*0 
that the break 
ri3 
03 
7*91 
51 
8 
4 
47*50 
91*05 
1769*2 
383*0 
was employed. 
14 
& 
7*91 
51 
8 
4 
4 
47*55 
90*30 
1800*3 
391*5 
In other cases the 
15 
Jjj 
7*92 
51 
8 
3 
✓0 
47*35 
90*50 
1791*9 
389*7 
break was not 
16 
9 
7*91 
51 
8 
4 
5 
47*55 
* 
— 
335-0 
used. 
17 
t 
7*91 
51 
8 
3 
0 
47*20 
90*60 
1787‘7 
356*9 
* Not observed. 
18 
© 
99 
> 
1 
7*91 
51 
8 
3 
47*35 
90*70 
1783*6 
8U9 J- 
312*1 
Weight of carriage. 
19 
o 
7*91 
51 
8 
3 
40 
47*45 
93*35 
1679*7 
Mean 
323*8 
17 cwt. 12 lbs. 
20 
d 
7*92 
51 
8 
4 
4 
47*30 
90*95 
1773*3 
1769*4 
568*3 
Powder, L. G., 
L21 
'S 
99 
*<» 
7*92 
51 
8 
5 
9 
47*40 
* 
— 
358*0 
W. A., 26/11/60. 
f22 
'3 
9 
9 
9 
7*91 
51 
8 
5 
6 
— 
* 
— 
357*9 
Lot 260 for 
23 
ft 
7*87 
49 14 
5 
3 
— 
* 
— 
323*1 
68-pr., solid shot. 
24 
99 
7*85 
49 14 
5 
6 
47*95 
93*10 
1707*8 
359*0 
L. G., Hall and 
25 
99 
7*86 
49 14 
3 
§ 
47*85 
91*30 
1779*4 
360*0 
Sons 22/11/60. 
26 
c» 
7*84 
49 14 
3 
9 
47*45 
* 
— 
356*0 
Lot 814 for rest 
27 
99 
S 
7*84 
49 14 
4 
0 
47*75 
92*10 
1738*8 
, 1790‘7- 
383*3 
of 68-pr. experi¬ 
28 
6 
o 
7*85 
49 14 
3 
7 
47*85 
92*25 
1732*8 
286*0 
ments. 
29 
° 
7*87 
49 14 
4 
0 
47*80 
91*75 
1753*4 
382*0 
30 
S 
.s 
7*85 
49 14 
4 
2 
48*15 
91*95 
1765*4 
Mean 
— 
31 
& 
ob 
7*87 
49 14 
4 
O 
48*15 
91*85 
1769*4 
1750*3 
— 
132 
7*87 
49 14 
5 
4 
48*25 
92 20 
1755*2 
385*8 
f33 
Pi 
10 
0 
7*85 
60 
0 
3 
5 
48*20 
105*30 
1339*2 
394*2 
34 
0 b 
c3 ^ 
*5° -S 
7*83 
60 
0 
3 
6 
39*45 
98*75 
1283*0 
1308*5 
310*9 
35 
<K> 
i 
7*87 
60 
2 
3 
7 
39*50 
100*65 
1242*0 
> 
277*4 
36 
7*84 
60' 
0 
3 
7 
39*45 
96*10 
1344*2 
Mean 
358*1 
137 
- 
7*85 
60 
0 
3 
7 
39*65 
101*25 
1229*4 
1287*6 
326*4 
