426 
INDEX, 
Packing of sleds, method of, 185; lashings 
required for guns, ib. 
Passing of smooth-bored French guns, 83 
Pendulum proper, the, 152 
Permanent forts, 93 
• -fortification, 219 
Phenomena of combustion, atmospheric pres¬ 
sure upon, 14 
Plane of fire, definition of, 27 
Plank’s sheet lead, 224 
Plans and tracings of French guns, mode of 
manufacture, 76 
Pontoon bridges, pressure upon ascertained, 
395 
Practice with 32-pr. cast-iron guns rifled on 
different systems, 328, 329 ;—initial veloci¬ 
ties of, observed, 331 
Proof of Belgian gunpowder, 110 
Quick powder, 111 
[Range, mean difference of, and mean deflec¬ 
tions for Armstrong guns, &c., 25 
• -point blank, definition of, 28 
—tables, 22-24 
[Ranges, obtained in 40-pr. practice, 19; ob¬ 
served mean ranges, ib. 
• -of 40-pr., corrected, for the different 
heights of the axis, &c., 21 
[Report of Ordnance Select Committee, No. 
1484. Mantlets for the protection of artil¬ 
lerymen from riflemen, &c., 1 
--by the minister of marine, Paris, relative 
to the proof of rifled cast-iron guns, 75 
--of an Austrian military commission on 
gun cotton, extracts from, 114 
--of Ordnance Select Committee, on the 
efficiency of Armstrong guns employed in 
ricochet fire, 246 
• -of practice against a Carnot wall, in 1824, 
242 
—of O. S. Committee, on competitive rifled 
cast-iron guns, 323 
[Reports on rifling cast-iron guns, 354-364 
“ Besistance,” orders for construction of the, 
30 
[Results of experiments with metals when 
heated and then cooled, 313-315 
[Ricochet fire of Armstrong and smooth-bore 
guns, results of practice with, 249 
• -with Armstrong guns, report of Ordnance 
Select Committee on, 246 
[Rifled (French) cannon, 85 
-guns, initial velocities of, 72 
—cannon, application of, to breaching un¬ 
seen defences, 231 
--abstract of practice with cast-iron 32-pr. 
competitive guns, 326,-330 
Rifling cast-iron guns, reports on, 354-364 
Riviere-du-loup, march of a half-battery from 
St Johns, New Brunswick to, 179 
Rolled armour plates, dimensions and weight 
of, 256 
“Runners ” to sleds, 181; method of fastening 
benches to, 182 
Service and experimental projectiles, initial 
velocities of, 11 
Shaw, Lt.-Col., report by, to ascertain the 
actual vertical pressure of field and siege 
artillery when passing over pontoon bridges, 
395 
Shield, Captain Inglis’s, 224, 258 
Shoeburyness, see Experiments. 
Shrapnel shell, true principle of, 398; proposed 
application of, 399; principle of action of, 
400; Germans claim to invention of, 401; 
French claim to invention of, 402 
Shrubbery iron works, 32 
“ Skew helicoid,” 411 
Skypiece, of sleds, 183 
Sleds, method of packing, 180;—of fastening 
benches to runners of, ib.; —raves of, 183 
Sleighs, their faults, 180 
Slews, 189 
Slow powder, 111 
Smelting furnaces and foundries (French), 
management of, 77 
Smith, Lieut., march of half-battery, from St 
Johns, New Brunswick, to Riviere-du-loup 
on the St Lawrance, 179 
Spontaneous decomposition of gunpowder, 375 
Stages of march between St Johns, New Bruns¬ 
wick, and Riviere-du-loup, 190 
“ Stored-up work,” 49 
Target, proposed by special committee on 
iron, 44 
Targets,—Chalmer’s 316 
“ Committee,” 44, 91 
“Minotaur,” 103 
Samuda’s, 99 
Scott Russell’s, ib. 
“ Warrior,” 43, 89 
Tartaglia, Nicholas, extract from, 26 
Testing guns of competitors, 331 
Terminal angle, definition of, 28 
Thorneycroft’s bars, 31;—price per ton, 32 
Time-fuzes, rate of burning of, 14; atmospheric 
pressure on, 15 
Various forms of rifling, experiments to test,263 
Vernier needle, 117 
Voltaic batteries, 153 
“Warrior,” orders issued for construction of,30 
Warrior target, effects produced upon, by 68 
and 110-prs, 66, 67;—experiments with 
150-pr. smooth-bore against, 71 
110-pr., mean penetration of, against, 66 
68-pr., ib. 
200-pr. bolt, ib. 
Whitworth, 12-pr.breech-loader, weight of, 170 
-70-pr. muzzle-loading rifled gun, ib. 
•-120-pr. muzzle-loading rifled gun, ib. 
-projectiles, experiment to test the pene¬ 
trating powers of, 170, 171 
-report on his system of rifling, 349 
■-list of his muzzle-loading guns, ib. 
Windage, absence of, in 12-pr. Armstrong, 121 
“ Work done,” definition of, 48 ;—at different 
distances by different guns, 73 
Yonge, Captain, tempered steel mantlet, 3;—• 
homogeneous iron, 5 
Younghusband, Col., report by, on the proof 
of gunpowder in Belgium, 110 
