dry, according to the English method, ibid
other compositions for, ibid
composition for, according to Ruggeri, ibid
Potash, 191
Potassium, ibid
Pots des Brins, 364
serpents for, 299
how made, 364
de chasse, 360
fire, remarks on, 365
for ramparts, 575
composition for, 366
of ordnance, 422
how made, ibid
how fixed, ibid
how discharged, 423
flower, pyramid of, 402
Powder-triers, 138
proof, 136
bags, 503
how made, ibid
barrel, ibid
of fusion, what, 50
fulminating, ib.
inflammable, of Pauly, 577
of what composed, 578
Priests of antiquity, acting as jugglers, 32
Prince Rupert's drops, 214
Priming powder, of chlorate of potassa, 75
tubes, or fuses, 475
formerly made of tin, ibid
composed of two parts, ibid
reeds, or quills used for, ibid
how filled, 476
compositions, sundry for, ibid
pewter used for, 475
Prognosticator, a preparation of camphor for a, 159
Proust, his remarks on the charcoal for powder, 110
Prussic acid, 89
Puddling, what, 207
Puffs, 262
composition for, 263
Pulverization of substances, 253
Purple match, 325
Putrefaction of animal and vegetable substances, 70
forms saltpetre, 71
Pyrotechny, 1
general theory of, ib.
of the Chinese, 53
Pyrotechnical sponge, 570
mixtures, 1
Pyroacetic acid, 91
how purified for use, 93, 95
Pyric piece, 412
Pyrophorus, 180
of Wurzer, 86
how prepared, ib.
Pyrophore of defence, 581
Q.
Quick match, 20
how generally made, ib.
military, 477
different kinds of, see match.
Quicklime, 194
its use in making slow match, 472
R.
Radiation of heat, its effects, 565
Rammers, 231
Rampart fire-pots, 575
Realgar, 187
Reagents, chemical, to discover foreign salts in nitre, 72
Recoil of a gun, similar to the recoil of a rocket, 11
Reeds, for fire-ships, 510
Red-fire for theatres, 270
Resins, 148
Thenard's opinion of, ibid
Repeating gun, 460
Reports, single, 301
cases for, ibid
Rain, silver, composition for, 272
fire, 18
filamentous, 309
how formed, ibid
cases for, with what charged, ibid
in sparks, what, ibid
composition for, 310
gold, composition for, ibid
remarks on the, 319
fire, in general, sundry compositions for, 311
falls, and stars, double and single, ibid
observations on the cases for, ibid
and hail, how imitated, (note.) 266
Rays, composition for, 272
Rice glue, 252
Richardson, his tricks with fire, 36
Ring, a, how suspended by a thread reduced to ashes, 41
Robins, his conclusions applicable to rockets, 16
his experiments on gunpowder, 125
Rochos, on the ashes of toads, 34
Rock saltpetre ore, what, 55
Rockets, gunpowder, &c. causes the ascension of, 11
motion of, how balanced, 12
gases produced by the combustion of the composition for the, ib.
principle of the, gives motion to fire-wheels, 11
a missile weapon, ib.
used at the seige of Seringapatam, ib.
principle, what, 12
employed for explosion and conflagration, 11
theory of the ascension of the, 12
stick, its use, ib.
stars, 18
water, ib.
charcoal of hard wood for, when used, 94
remarks on charging of the, 231
charging of the, rammers required for, ibid
signal, tools required for forming the, 232
table, 272
driving of a, 236
driven solid, or hollow, 236
ladle for charging, 237
blows required for charging of the, ibid
for each ladleful of composition, ibid
how bored, and machine for boring, 238
taps for, what, ibid
bored with a brace and screw bit, 239
cases, how made, 243
cases, Morel's rule for making, 244
length of the, how regulated, 245
and their appendages, 326
flying, ibid
uses of, ibid
caliber and preparation of, ibid
tables, concerning the, 327, 328
different opinions respecting, 327
moulds for, remarks on the, 328
composition for, remarks on the, ibid
charcoal used in the composition for, of what kind, 329
compositions for, opinions respecting the, ibid
compositions for, ibid
according to Morel, 330
to Bigot, ibid
tabular view of the, 331
of honour, Chinese composition for, 330
observations on charging of, 331
furniture of, its weight, 332
heads for, how made, ibid
sticks for, ibid
how measured, ibid
piercer, what, 333
rammers, for charging of, ibid
formers for the cases of, ibid
moulds for, table exhibiting the dimensions of, ibid
on the heading of, 334
heads of, why used, ibid
experiments respecting, 335
manner of decorating them, ibid
decorations used for, ibid
sticks, their dimensions and poise, 336
their use, ibid
table respecting, ibid
how discharged, 337
different modes of discharging, ibid
fired without sticks, in what manner, 338
Girandole chest for discharging, ibid
how made, 339
fountain of, what, ibid
how discharged at the same time, ibid
Morel's contrivance for discharging, ibid
angle of inclination given to, if required, 340
combinations of, with appendages, ibid
fixed on the top of each other, ibid
towering, 16, 340
Caduceus, 16, 341
Honorary, 342
Chained, ibid
tails of, how made to form an arch, 343
small, or swarmers, ibid
composition for, ibid
scrolls for, 344
cases for, ibid
line, with decorations, 345
signal, 347
water, 443
discharging of, in water, 448
under water, 449
war, 11, 526
Congreve, has iron cases ibid
Signal, trimming of, ibid
composition for the trimming of, 527
quicklime used in the composition of, (note.) 526
the hollow in, increases the surface that takes fire, 527
sticks of, when large, are bored and filled with powder, 528
Robins's experiments with, ibid
height of ascension of, ibid
Indian, 529
Congreve, how it differs from the common, 530
contains the propelling power, ibid
carries ball, shells, case shot, &c. ibid
distance of its flight, ibid
carcass, ibid
how armed, 533
used at Boulogne and Copenhagen, 531
advantages it is said to possess, ibid
range of the largest kind of, 532
kinds used for different services, 533
table concerning the range, &c. of the, ibid
how discharged, 535
estimate of the cost of the, 536
French account of the, ibid
described by Ruggeri, ibid
Congreve said not to be the inventor of the, ibid
invented by a naval officer, ibid
Ruggeri's publication concerning the, ib.
analysis of the, by Gay-Lussac, 531
objections to the, 537
difference between the incendiary and common, 538
murdering, how formed, ibid
how discharged, ibid
light ball, 539
carcass, the floating, ibid
observations on the, 540
Bigot's remarks concerning the, ibid
Bigot's tables of the different kinds of, 542, 543
the succoring, 544
Rolling board, 233
Rolled stars, 304
Rome, the forum at, lighted, 428
without public lights, ibid
Roman candles, 380
Roses, Italian, 313
composition for, ibid
Rose-piece and sun, 399
Rosin, 146
how prepared, 147
Ruggeri, his opinion of chlorate of potassa for rockets, 77
Rumford, count, his improvement in fuel, 577
S.
Sacks, for mealing gunpowder, 234
of powder, for pots des brins, 366
Sage, on the spontaneous combustion of charcoal, 107
his remarks concerning gunpowder, 108
Sal Alembroth, 187
ammoniac, use of, in fire-works, 184
in candle making, 191
ammoniac, 184
Sal Prunelle, 49, 167
Saltpetre, the basis of fire-works. See Nitre, 3
affords oxygen, ib.
decomposed by charcoal, ib.
remarks concerning, 49
converted into sal prunelle, 167
refining of, 65
old process for refining of, 66
reagents used to determine the purity of, 72
Dupont's refined, character of, 73
how obtained in fine powder, ib.
preparation of, for fire-works, ib.
the oldest certain account of, 98
Caves. See Nitre.
proportion of acid in, 122
used in candle-making, 186
Saracen fire, 549
Saucissons, 321
how made, ibid
flying, ibid
how used, 322
in mining, what, 551
Scudder, his plan for blowing up the Ramilies, 524
Scrolls for rockets, 344
Scented vase, 288
Scented fire-works, 21, 283
vase of the Athenians, 21
fire of the Moldiva Islands, 285
Schwartz, said to be the inventor of gunpowder, 99
Schistus, bituminous, 155
Schœpfer revived magic, 33
and Cagliostro, tricks of, ib.
Sea lights, 525
composition for, ibid
Sea fights, how represented, 451
Sieves, 234
Seneca oil, 155
Serpents, nest of, 364
how formed, 298
how driven, ibid
composition of, 299
for pots de brins, ibid
for pots of aigrettes, &c. ibid
why so called, ibid
stars, 301
their intention, ibid
cases for, ibid
compositions for, ibid
of two kinds, ibid
how moulded, 302
how primed, ibid
theory of their effect, ibid
whirling, ibid
principle of the, ibid
how charged, ibid
Ship, fire, 507
preparation of a, 507
Shells, paper, how made, 245
fuses for, 481
loading of, 484
Shining marrons, 320
Shrapnel shell, 559
Siemienowicz, Casimir, his fire-rain, 560
Signal rockets, 347
Silliman, professor, his fulminating silver, 175
Silver rain, composition of, 272
what, 18
fulminating, 173
Size, 215
Skin, the, how made callous, 36
Sky-rocket, see Rocket.
Smoke ball, composition of the, 507
Snakes, how tamed, (note.) 35
destroyed in India, (note.) ib.
fangs of, what, (note.) ib.
Solar phosphori, 437
the miraculous luminaries, no other than, different kinds of, ibid
phosphorus, Bolognian, ibid
Canton's, ibid
Hanzelet's, ibid
Baldwin's, ibid
Soot, why used in some pyrotechnical mixtures, 145
of what composed, 146
of animal excrement furnishes sal ammoniac, ibid
of camels' dung, its use in Egypt, ibid
of oil, and turpentine. See Lampblack.
Sparks, in rain-fire, 309
substances, which show in, 312
Spelter, 196
Spherical case shot, 559
Spiral screw, 418
Spontaneous combustion, 51
Spouts, fire, 367
Spirit of sal ammoniac, 185
Spirits of turpentine, 147
Spirit of wine, 168
Spirit lamps, 170
Spur fire, 9, 267
composition of, 268
Spunk, 570
Standing or fixed cases, compositions for, 389
Stands, for sky-rockets, 338
Stahl, his opinion of the composition of nitric acid, 70
Stars, from artificial flower pots, 10
simple, 303
use of, ibid
how prepared, ibid
composition for, 304
rolled, 304
how made, ibid
composition used for, ibid
cracking, ibid
are small marrons, ibid
rocket, white, composition of, ibid
blue, composition of, 305
variegated, composition of, ibid
brilliant, composition of, ibid
common, composition of, ibid
tailed, composition of, ibid
drove, composition of, ibid
fixed pointed, composition of, ibid
of a fine colour, composition for, ibid
of different colours, composition of, ibid
directions for preparing, 306
another composition for, ibid
which carry tails of sparks, ibid
composition of, ibid
which yield some sparks, 307
yellow, composition for, ibid
another composition for, ibid
caution in rolling, ibid
different ways of forming, 308
flaming, with brilliant wheels, ibid
general theory of, ibid
fixed, 313
scrolls for, 344
strung, ibid
moulded Mosaic, 382
flat, 424
Steam, how used for drying gunpowder, 112, 116, 119
pipes, what, 112
latent heat in, (note.) ibid
for boiling dye kettles, (note.) ibid
Count Rumford's experiment with, (note.) ibid
Steel, its use in fire-works, 201
combustion of, in oxygen gas, 202
hardening of, 204
tempering of, ibid
natural, 207
kind called ferrum candidum, 208
of cementation, 207
singular mode of making, in Spain, 208
blistered, 207
antiquity of hardening, 208
shear, 207
cast, ibid
or iron filings, how preserved for fire-works, 239
filings, in spur-fire, 10
produce scintillations, ib.
of what composed, 89
Stink fire lance, 507
Stink stone, 155
Strangling of cases, how performed, 243
contrivance for, 244
Strangler, 233
Streets, lighting of the, a modern invention, 26
Storax, 162
Substances, what, required for military fire-works, 228
pulverization of, 253
properties of various, known to jugglers, 26
Submarine navigation, 515
Succinum, 156
Succinic acid, 157
its effect in fire-works, 290
Suffocating pot, 507
composition for the, ibid
Sugar, 165
used in fire-works, ibid
decomposed by chlorate of potassa, ibid
from various substances, 166
caromel from, by the burning of, 165
sulphuric acid converts several substances into, 166
Sulphur, 78
native, ib.
in the island of Java, ib.
associated with gypsum, ib.
volcanic, 79
how obtained from ores, 78
how purified for gunpowder, 80
mineralizes metals, ib.
from pyrites, ib.
vivum, what, ib.
how recovered, from damaged gunpowder, 72
from galena, 79
various means of obtaining, 80
quantity obtained, from pyrites, 80
quantity of in metallic sulphurets, 79
roll, 80
flowers of, ib.
properties of, 82
various compounds of, ib.
a constituent part of gunpowder, 83
mealing of, ib.
how to determine the purity of, ib.
to discover the adulteration of, by oil of turpentine, 84
milk of, 83
use of, in preserving iron and steel, 239
Sulphuret of arsenic, 187
antimony, 188
Sulphurets, 82
Sulphuric acid, ib.
native, in the island of Java, 78
Sulphurous acid, 82
Sun cases, 19
Suns, &c. exhibition of, by the Chinese, 256
Suns, fixed, 397
with transparent faces, 398
with variations, 396
compositions for the charges, ibid
with rose piece, 399
Swarmers, 343
composition for, ibid
Swedish melting house, feats performed at the,