472 
INDEX. 
Grafton, Richard, on siege of Maune (Le 
Mans), 1424, 10 
“ Graith,” 27 
Granite-ball fired from “ Mons Meg,” nearly 
as heavy as a Galloway cow, 26 
Granite, faced with iron plates, 201 
Gravel, mean penetrations of projectiles into 
hard, 161, 162 
‘ Grosse bombarde,” account of trial of, 29 
Gun carriage, muzzle-pivoting, 89 
Gun-cotton and gunpowder, phenomena ex¬ 
hibited by, under special conditions of 
exposure to heat, 127 
-, absence of smoke with use of, 70 
-, abstract of lecture on, 76 
-, an introduction to the properties and 
history of the substance of, 65 
-, comparative effect against woodwork, 
73 
-, composition and properties of, 66 
-, effect of heat and damp on, 74 
--, effect on the range and velocity of the 
shot, by, 71 
-, effect on the materials of the gun 
from, ib. 
— -, effects on the sides of embrasures 
from use of, ib. 
— -explosion of, at Hall’s manufactory, 
77 ; at Wade’s manufactory, ib. 
• -, explosive effect in mines, superior to 
gunpowder, 72 
--, explosive effect in shells, greater than 
with gunpowder, ib. 
-, fouling, less than with gunpowder, 
7° 
-, general rate of firing, ib. 
.-, heating effect on the gun, from, ib. 
— -, history of the invention and its 
development, 75 
-, history of, in Austria, 78 
-, its powers under water, 73 
-, keeping qualities of, ib. 
■ -, laid as a train burns about one foot 
per second, 69 
• -, manufacture of, 84 
--, not spontaneously combustible, 73 
-, qualifications of, for military and engi¬ 
neering purposes, 67 
— -, recoil with gun, less than with gun¬ 
powder, 70 
-, results obtained from various experi¬ 
ments with, ib. 
- -woven into a hollow line and coated 
with india-rubber, burns about 30 feet per 
second, 69 
Gunners, pay of, in fourteenth century, 303 
Gunpowder, phenomena exhibited by, in 
highly rarefied atmospheres, 133 
Guns, Armstrong, 12-prs., in engagements in 
New Zealand, 33, 372, 374, 387, 388 
-, damaging effect of, on “ Lord Warden ” 
target, 428 
-on “Warrior,” 219 
,-, 7" wrought-iron, rifled on various 
systems, trial of, 389 
- French, rifled, description of, 343 
-, smooth bore and rifled, relative value of 
169, 215, 285 
Guns left by English at Mont S. Michel, 
photographic view of, 17 
-, description of, 18, 19 
Gurwood’s despatches on Shrapnel shells, 5 
Gye, Lieut., R.A., birds presented by, 109 
H. 
Haig, Capt., R.A. remarks on the employment 
of the sextant, for observations requiring 
great precision, 92 
Hall, Messrs, manufactory of gun-cotton, ex¬ 
plosion at, 77 
Hammered iron plates, 63 
Hard gravel, mean penetration of projectiles 
into, 161 
Hardened wrought-iron shot (Whitworth’s) 
204 
Hardness of studs, report of Colonel Campbell 
on, 413 
Harrison, Capt., R.A., results of experiments 
with projectiles against iron armour, 195 
-, on the construction of our iron-clad 
fleet, and a few remarks on iron shields 
for coast batteries, 414 
-, experiment carried on at Shoeburyness, 
on 4th Aug. 1864, to test the “ Small 
Plate ” target, 177 
-, experiment carried on at Shoebury¬ 
ness, on 15th Aug. 1864, to ascertain the 
effect of steel shell fired from a 13*3" Arm¬ 
strong M. L. wrought iron shunt rifled 
gun, on an iron-plated vessel, at 2000 yds. 
range, 176 
Hawkshaw, Mr, on laminated armour in lieu 
of thick armour plates, 421 
-, targets, report of Special Com¬ 
mittee on Iron, on, ib. 
Head quarters Rangariri, New Zealand, 
detachment, strength of, 33 
Heaviest spherical steel shot yet fired, 344 lbs. 
211 
Heavy shot at low velocities, Sir W. Arm¬ 
strong’s evidence before Special Committee 
on Iron, on, 199 
Hermit of Mont Tombelaine, warning to 
Commander Lescale at Mont S. Michel, 12 
Hewitt, Mr, on “Mons Meg’s” history not 
being authentic before 1489,10 
Hewlett, Capt., R.N., report of experiments in 
1862, with a 68-pr. S. B. gun, 199 
-, on the best form of shot for pene¬ 
trating iron plates, 212 
Hime, Lieut., R.A., description of three guns 
found in the fort of Futtehgurh on its 
capture by Lord Clyde in 1858, 361 
—-, insects presented by, 109 
Hints upon collecting objects of Natural His¬ 
tory, 191 
History of gun cotton in Austria, 78 
--of the invention and development of 
gun cotton, 75 
-of the substance of gun cotton, 65 
Holley, Mr., on the first authenticated experi¬ 
ments with artillery upon iron armour, 
414 
-, on laminated armour, 421 
-, results of experiments carried on 
in America against iron armour, 453 
Hollow-headed and solid shot, experiment to 
test the comparative effect of, 215 
Homogeneous metal and case-hardened 
wrought-iron projectiles, 67 
Homogeneous metal, definition of 205 
Horizontal iron stringers, of the advantages 
to be derived from, 432 
Horsfall 13" gun, penetration of, 65 
-- 13" gun, versus “ Warrior ” target, 38 
- - shot, penetration of, 39 
