144 
MINUTES OF PROCEEDINGS OF 
October.20 , I860.— Barometer (32°), 29*930. Therm, dry, 52°*5; wet, 48°'3. Elastic force of vapour, 
*283. Humidity, *71. Weight of a cubic foot of air, 540*7 grs. To ascertain the initial velocity of 
25-pr. projectiles fired from the long 25- pr. with various charges. 
'ZS 
a 
fS 
1 
Projectile. 
Reading of 
Needle. 
Velocity. 
o 
Re- 
Range. 
Remarks. 
<V CD 
o 
£ 
s § 
-g c3 
be 
c3 
.d 
O 
Nature. 
Dia¬ 
meter. 
Weighl 
coil. 
Dis- 
junctor. 
Pro¬ 
jectile. 
At 
30 yds. 
Initial. 
lbs. oz. 
lbs. oz. 
O 
O 
ft. 
ft. 
yds. 
i 
2 8 
3*830 
25 0 
— 
41*65 
119*70 
953*1 
1 
I 938*8 
'Mean - 
968*8 
Rounds 1 to 6 no 
2 
JB 
„ » 
„ 
„ » 
— 
36*65 
— 
— 
— 
lubricating wads 
3 
99 
,» ,, 
— 
36*70 
— 
— 
were used. Lu¬ 
4 
<M 
„ „ 
,, „ 
— 
32*45 
109*95 
963*5 
— 
bricating wads 
5 
f-i 
99 99 
43 
99 
99 99 
— 
35*70 
112*95 
968*5 
— 
were used in the 
6 
o* 
99 99 
% 
99 
99 99 
— 
35*70 
112*85 
969*9 
— 
rest of the prac¬ 
7 
. 
99 99 
„ 
99 99 
— 
35*65 
111*65 
986*9 
" - 
tice. Height of 
8 
£ 
99 99 
99 
99 99 
-- 
35*60 
110*25 
1007*3 
1019*8 
— 
axis of gun, 4 ft. 
9 
99 99 
J 
99 
99 99 
— 
35*60 
109*25 
1016*5 
■Mean - 
— 
3| ins. Gun laid 
10 
11 
qo 
;; ” 
rg 
» 
;; ;; 
_ 
35*20 
35*30 
109*50 
108*95 
1012*8 
1021*0 
1014*4 
_ 
horizontal. Pow¬ 
der, A 4. 
12 
% 
2 13 
99 99 
— 
40*75 
111*20 
1076*4 
" - 
13 
99 99 
CO 
99 
99 99 
— 
41*00 
110*60 
1086*7 
— 
14 
99 99 
jO 
99 99 
— 
40*90 
110*70 
1085*0 
— 
15 
99 99 
99 
99 99 
— 
41*00 
110*79 
1084*1 
— 
16 
• ^ 
99 99 
99 
99 99 
— 
40*85 
111*00 
1079*8 
1089*3 
— 
17 
« £ 
99 99 
-2 
99 
99 99 
— 
40*95 
111*00 
1079*8 
-Mean - 
— 
18 
“jg 
99 99 
99 
99 99 
— 
40*95 
110*70 
1085*0 
1083*3 
— 
19 
99 99 
99 
99 99 
— 
41*00 
110*65 
1085°8 
— 
20 
1.° 
99 99 
60 
99 99 
- i 
40*90 
110*55 
1087*5 
— 
21 
d 
99 99 
’1 
99 
99 99 
— 
43.75 
113*55 
1084*3 
— 
22 
d 
99 99 
99 99 
— 
43*80 
111*70 
1081*7 
— 
23 
rf 
3 2 
99 
99 99 
— 
44*00 
110*50 
1121*4 " 
: — 
24 
99 99 
A 
9f 
99 99 
— 
— 
—«• 
— 
— 
25 
c 
99 99 
99 
99 99 
— 
— 
— 
— 
— 
26 
o 
99 99 
g 
99 
99 99 
— 
45*50 
112*80 
1129*2 
— 
27 
■g 
99 99 
1 
99 
99 99 
— 
45*65 
112*65 
1132*1 
1142*5 
— 
28 
a 
99 99 
8P 
99 
99 99 
— 
45*55 
111*60 
1152*3 
- Mean - 
— 
29 
99 99 
m 
99 
99 99 
45*80 
112*35 
1137*8 
1136*1 
— 
30 
99 99 
99 99 
— 
45*85 
113*10 
1123*5 
— 
81 
99 99 
99 
99 99 
— 
45*25 
111*65 
1146*1 
— 
32 
lO 
<a 
99 99 
99 
99 99 
— 
45*50 
112*75 
1125*0 
— 
33 
9, „ 
” 
,9 99 
45*45 
111*80 
1143*2 . 
October 20, 1860.—Barometer (32°), 29*930. Therm, dry, 52°*5; wet,48°*3. Elastic force of vapour, 
•283. Humidity *71. Weight of cubic foot of air, 540*7 grs. To ascertain the initial velocity of 
25-pr. projectiles fired from a short 25-pr. with a charge of 2 lbs. 6 oz. 
lbs. oz. 
lbs. oz. 
o 
o 
ft. 
ft. 
yds. 
1 
2 6 
— 
S’830 
25 0 
— 
45*20 
131*20 
832*4 
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Lubricating wads 
2 
,, 
— 
99 
99 99 
— 
45*40 
127*55 
883*8 
1 | 
— 
employed. Same 
3 
>j >» 
— 
99 
99 99 
— 
45*20 
127*80 
880*2 
878*9 | 
— 
powder used as 
4 
» „ 
— 
99 
99 99 
— 
45*55 
127*70 
881*7 
1-Mean.-! 
— 
with the long 
5 
j> » 
— 
99 
99 99 
— 
45*60 
128*20 
874*5 
874*5 1 
— 
25-pr. Height of 
6 
» » 
— 
99 
99 99 
— 
45*20 
127*55 
883*8 
1 
— 
axis, 4 ft. 
7 
8 
” ” 
— 
” 
” ” 
45*45 
127*45 
885*3 
J L 
