SHORT NOTES ON PROFESSIONAL SUBJECTS. 
25 
over that dangerous bar by sea jerms, landed at Port St Julians, re-embarked there 
in river jerms, in order to proceed up the Nile. Several of them were landed 
within four miles of Grand Cairo, and conveyed from thence twelve miles across 
the country, for the attack of Gizeh. Returned back after the surrender of Cairo 
by the same route, and exactly in like manner to Alexandria; re-landed there for 
further operations of attacks, carrying on both on the eastern and western side of 
it, the capitulation of which, concluding the campaign, they were again conveyed 
to the ships in Aboukir Bay. 
“Besides the articles already detailed, numerous minute circumstances happened 
in the course of the campaign which necessity continually urged the imagination 
to provide against. Every movement by land or water w$s attended with infinite 
labour and difficulties; added to which, the violent heat of the sun, and shoeks 
received by passing over the formidable cracks it occasioned in the ground (annually 
overflowed by the Nile) on the march to Cairo, operated so powerfully on the 
carriages as to require perpetual attention and daily repair, without the most 
common materials for such occasions, either of wood or iron, to be found in the 
country.” 
The following is given as “return of ordnance captured in Egypt,” viz.:— 
In the field, March 8th, 5 pieces ; 13th, 3 ; 21st, 2; Aug. 22nd, 7. Garrisons, Aboukir Castle, 11; 
Ft. Julian, 15; Ft. Burlos, 5; Grand Cairo and Dependencies, 121 j Gizeh Lines and Arsenal, 530 ; 
Alexandria do, 411 ; Island of Marabout, 10; Damietta and walls of Lesbie, &e., 54; Ships of war 
in the harbour of Alexandria, 77. Total, 1251. 
N.B. Besides the above, the French were allowed to embark fifty field pieces from Cairo, and 
ten from Alexandria. 
26. Velocities op projectiles and method op calculating remain¬ 
ing velocities. The following abstract shews the mean initial velocities of 
projectiles fired from various service rifled guns, with present description of powder 
(rifle L. G.). 
Nature of Gun. 
1 
Calibre. 
Charge. 
Projectile. 
Initial 
velocity. 
Nature. 
Mean 
weight. 
Mean 
diameter. 
in. 
lbs. 
lbs. 
in. 
ft. 
13-in. M.L. of 23 tons . 
13-05 
70 
Pallispp 
620 
12*95 
1220 
a a . 
n 
60 
Common shell 
620 
12.97 
1136 
n u . 
n 
50 
n 
„ 
a 
1000 
9-in. M.L. of 12 tons . 
9 
43 
Pall ism* 
250 
8-90 
1340 
II II . 
n 
30 
Common shell 
250 
8-92 
1220 
8-in. M.L. of 9 tons . 
8 
30 
Pallispr 
180 
7-90 
n n . 
n 
20 
Common shell 
180 
7-92 
JLOOU 
1165 
7-in. M.L. of 7 tons . 
7 
22 
Palliser 
115 
6-90 
1465 
n a . 
n 
14 
Common shell 
115 
6-92 
1260 
7-in. M.L. of 6^ tons . 
7 
22 
Palliser. 
115 
6-90 
1430 
II II ... 
n 
14 
Common shell 
115 
6-92 
1230 
64-pr. M.L. of 64 cwt. 
6-3 
8 
n 
64 
6-22 
1170 
7-in. B.L. of 82 cwt... 
7 
10 
n 
110 
7-09 
1013 
n n . 
a 
11 
n 
90 
7-09 
1165 
64-pr. B.L. of 61 cwt.... 
6-4 
8-5 
n 
64 
6-48 
1160 
40-pr. B.L. of 35 cwt. 
4*75 
5 
n 
41 
4-8 
1180 
20-pr. B.L. of 16 cwt. (L. service)... 
3-75 
2-5 
it 
21 
3-8 
1150 
do of 13 cwt. (S. service) . 
n 
II 
ti 
„ 
II 
1000 
12-pr. B.L. of 8 cwt. 
3-0 
1-5 
Segment shell 
11-75 
3-07 
1170 
9-pr. B.L. of 6 cwt. 
a 
1-125 
n 
9 
a 
1030 
