THE ROYAL ARTILLERY INSTITUTION. 
135 
September 17, 1860.—Barometer (32°), 29'795. Thermometer, dry, 59°* 11. Thermometer, wet, 58°' 6* 
Wind, No. 2. Elastic force of vapour, *486. Humidity, 1*00. Weight of cubic foot of air? 
530-1. To ascertain the initial velocity of 24-pr. shell fired from 24-pr. howitzer service charges. 
No. of Rounds. 
Nature of Ord¬ 
nance. 
Charge. 
Projectile. 
Re- 
coil. 
Reading of 
Needle. 
Velocity. 
Range. 
Remarks. 
Nature. 
Dia¬ 
meter. 
Weight. 
Dis- 
junctor. 
Pro¬ 
jectile. 
At 
30 yds. 
Initial. 
lbs. oz. 
lbs. oz. 
o 
O 
ft. 
ft. 
yds. 
r i 
2 8 
PH 
— 
16 11£ 
48*65 
110*55 
1231 8 
i 
330 
Gun laid horizontal 
2 
J> S> 
o 
— 
48*65 
110*55 
1231*8 
i 
1 
205 
with spirit level 
3 
Eg® 
— 
99 » 
'xi 
CD 
48*40 
110*45 
1234*0 
! 
197 
every round. 
4 
l 
— 
55 55 
£ 
— 
— 
— 
i 
236 
Height of axis 
x] 
! 5 
a « 
B 
— 
55 55 
<D 
48*55 
111*00 
1221*9 
i ^ 
203 
4' 0''. Powder 
! 6 
o . ^ 
a 
— 
1 
48 70 
112*25 
1219*7 
” Mean 
203 
L.G. All the 
1 7 
or 4^ ?h 
t-H 
„ „ 
o 
o 
— 
55 55 
48*65 
110*40 
1195*0 
1218 * 0 
204 
cartridges out of 
1 8 
^ 0 © r~H 
— 
55 55 
"o 
48*65 
113*20 
1235*1 
202 
the same barrel. 
1 9 
Pi 
— 
55 55 
— 
— 
— 
202 
UO 
<N 
” ” 
_ 
55 55 
48*70 
111*10 
1175*1 
250 
March 17, 1861.—Barometer (32°), 29*705. Thermometer, dry, 41 o, 0; wet 40°*8. Wind calm. 
Elastic force of vapour, *259. Humidity, 1*00. Weight of cubic foot of air, 538*4 grs. To 
ascertain the initial velocities of the wall piece and of the Enfield rifle. 
March 11, 1862.—Barometer (32°), 30*415. Thermometer, dry, 46°*3; wet, 43°*0. Elastic force 
of vapour, *242. Humidity, *79. Weight of cubic foot of air, 556*5. To ascertain the initial 
velocity of the Armstrong 6-pr. 
lbs. 
oz. 
lbs. 
OZ. 
0 
o 
ft. 
ft. 
yds. 
f 1 
to 
0 
12 
2-585 
6 
0 
3' 3'' 
45*55 
122*95 
960*6 
"1 
320*9 
* Vent piece blew 
2 
„ 
„ 
55 
55 
n.o. 
45*75 
— 
— 
271*5 
out. 
3 
„ 
55 
55 
i9 
3 10 
35*25 
pfee# ‘i ? 
— 
254*8 
Ranges very care¬ 
4 
„ 
„ 
M 
55 
3 3 
35*45 
115*55 
925*4 
202*3 
lessly taken, en¬ 
5 
3 3 
35*45 
114*00 
946*1 
204*0 
titled to no con¬ 
6 
oq 
Js 
9y 
3 3 
,35*55 
115*75 
922*7 
203*3 
fidence. Slope 
p 
7 
„ 
„ 
4 0 
35*50 
116*20 
916*8 
946*4 
342*6 
of platform 2°4i>'. 
X i 
8 
„ 
P 
n.o. 
35*55 
132*70* 
4 J BSi 
- Mean< 
279*5 
Height of axis 
X 
9 
2 
„ 
a 
55 
3 11 
35*45 
115*90 
920*8 
937*5 
251*9 
4 ft. 2 ins. Tra¬ 
10 
„ 
„ 
§) 
3 9 
35*00 
113*70 
944*1 
— ' 
velling carriage. 
11 
1 • 
„ 
„ 
m 
55 
99 
3 6 
35*45 
113*95 
946*8 
246*8 
Powder A 4,W. A., 
12 
<1 ^ 
„ 
3 6 
37*50 
116*30 
943*0 
204*8 
5/9/60. Lot 238. 
13 
. ° 
„ 
55 
3 6 
37*45 
115*90 
948*6 
248*3 
14 
„ 
55 
55 
4 0 
37*75 
116*40 
941*6 
230*0 
U5 
” 
” 
55 
| 
4 0 
37*55 
116*25 
943*7 
231*6 
September 11, I860.—Barometer (32°), 30*370. Thermometer (dry), | ^°]^* Wet Elastic 
force of vapour, *239. Humidity, *48. Weight of cubic foot of air, 541*6. To ascertain the initial 
velocity of the Armstrong 12-pr. segment shell. 
