Accidents in coal-mines, Report of the South
Shields committee on, 84, 100, 116; Mr.
G. Gurney's plan for the prevention of,
by ventilation, 97; Fourness's machine,
424

Adams's bow springs, 41

Adelaide gallery, 70, 89, 111, 112
Aerodiphros, Phillips's, 361

Aerostation, 257, 263, 273, 290, 291, 315,
317, 337, 339, 340, 354, 361, 382, 395,
407, 430, 474

Aeronaut, adventures of an, in search of a
patron, 340

Alum rock or schist, Kagenbusch's patent
for treating, 392

Anderson, Mr. W. D., (the late,) biogra-

phical notice of, 154
Anemometer, Elliott's, 117
Anthracite blast, cold, 488
Architecture for the poor, 29

Arkwright, claim of, to the invention of
roller spinning, 505

Argand furnace, Mr. C. W. Williams's, 207,
304, 394, 469

Arnot's, Dr., hydrostatic bed, 505
Artificial light, burning focus of, at the
Adelaide gallery, 70

345

coal, Cooke's, experiments with,

Arts, the, early history of, 138
Atlantic and Pacific junction canal, 48
Atmosphere, the, constitution of, 208
Atmospheric sprinkling pots, 140
pump, 141

railway between Kingstown and
Dalkey, progress of, 487
Atomic theory, 109

Aurora borealis, remarkable exhibition of,

425

Axles, solid and hollow, 207, 254, 390, 420

causes of the breakage of, 503
Ayer's improvements in ornamenting and
colouring glass, earthenware, &c., 143

Baddeley, Mr. Wm., on gas meters, wet
and dry, 111; London fires in 1842, 166;
on wood paving, 188; Walker's water

elevator, 295; on flying, 399; on Cow-
ell's patent taps, 449

Baggs's, Isham, Esq.: his carbonic acid
engine, 175; on falling bodies, 390; new
light, 475

Bain and Wright's, Messrs., discoveries in
the transmission of the electric fluid, 465
Ballooning, 74

Bands, Hancock's improvements in, 489
Barnard, Mr. J. F., registering barometer
invented by, 278

Barometers, 52, 110, 251, 278

Beadon's, Commander, life buoy, 17, 194
Bee-hives, on the management of, by Rev.
W. Brown,

rules for constructing, 510
Bell's improvements in the manufacture of
copper, 144

Bells, improved mode of ringing peals of,
466

Berlin patterns, 208

Bevan's, J., process of preserving meats, 59
R., improvements in heating, 489
Birds, flight of, 390
Bird's patent for raising water, and also for
propelling, 393

Bishop, John, Esq., on flying machines, 33
Bismuth, properties of, 359

Bisset's pneumatic railway engine, 52
Blasting rocks by galvanism, 61, 492
Blue, liquid, Futzsche's, 255
ink (inquiry), 360;

Boat,
66 man overboard," 48
Boilers, Steam: explosion on board the
American steamer Medora, 8; Echol's
mode of supplying, 15; Campbell's ditto,
31; M. Jobard on the causes of explosion,
120; David Napier's improvements in,
157; Craddock's patent, 177, 245, 516;
Henson's, 315; investigation of the com-
mon mode of estimating strength of cylin-
drical boilers, 403

Bothway's iron blocks, 490

Bottles, mineral water, 490
Botten's patent protector gas meter. (See
GAS LIGHTING passim.)
Bowcombe creek drawbridge, 341
Breakwater, Portland, 206

Breakwater lotus floating, 490
Bridge of concrete at Grisoles, 495
Bridges, suspension, 19, 51, 213, 234, 292
Britain, Great, water power of, 247

coal fields of, 144

Britannia metal, Sturge's improvement in,
158

Brokerage, short and simple modes of cal-
culating, 132, 518

Brougham, Lord, and the dangers of steam
navigation, 454

Brown, Rev. W., on the management of
bee-hives, 283

Buoy, life, Commander Beadon's, 17, 194
Burnet's, Sir Wm., anti-dry-rot process, 484
Bow springs, Adams's, 41

Boydell's improvements in the manufacture
of iron keel plates, gates, &c., 60
Brake, McConnel's improved, 503
Buckingham palace, roof of, 497

Bude light, the, Mr. G. Gurney's improve-
ments in, 141

Bullets, golden, employed in shooting ele-
phants, 39

Burning focus of artificial light, 70
Bury, Kennedy, Curtis, and Co.'s, Messrs.,
Circular on four and six-wheeled loco-
motives, 199, 246

Calorific rays, experiments on, 110
Calotype patent, the, 127

Cambridge focus of artificial light, 70
Cameras, Hodgson's improvements in, 300
Campbell's self-acting boiler feeder, 31
Candles, running of, (inquiry,) 252
Caoutchouc, imitation, 149
Capstans, Robinson's patent, 60
Carbonic acid engine, Baggs's, 175
Cards for jacquard looms, Larivière's machine
for reading and stamping, 347
Cart, self-loading, Whitworth's, 21
Casella's improved rain gauge, 256
Cayley, Sir Geo. Bart., retrospect by, of past
progress in aërostation, and demonstration
of principles on which success must de-
pend, 263-273

Chains, Panama, 505

Chemistry, history of, 129

Chemistry and the Customs: review of Dr.

Ure's "Revenue in Jeopardy from Spuri-
ous Chemistry," 410-Notice of do., 506
Cheverton, Benj. Esq., on Mr. Pilbrow's
"New Force in Steam," 349, 387.
Chinese pumps, 505

Chrome and iron, 505

Clay's new process of making wrought iron
direct from the ore, 418

Clegg's dry gas meter, 65; atmospheric
railway, 486

Clive, J. H. Esq., on suspension bridges,
&c., 40; reply to, 463

Cloth, folding and measuring, Spalding's
machine for, 31

Coal fields of Great Britain, 144

Coal mines, accidents in, South Shields Re-
port on, 84, 100, 116; Mr. Goldsworthy
Gurney's plan for ventilating, 97; Four-
ness's machine, 424

Coal ornaments, turning, 28

small, Dr. Clanny's method of burning,
389

Collings, Mr. Chas., the late, biographical
notice of, 154

Colours, collapseable tubes for holding, 488
Combustion; Mr. Sam. Hall's patent, 60
Comet, new, 252, 272, 304
Cometary phenomena, 302

Commission, short and simple modes of cal-
culating, 132, 518

Concrete bridge of Grisoles, 495
Condenser, Echol's, 15

Craddock's, 177, 245, 516
Cotton's, Mr., gold weighing machine, 299
Cowell's patent taps, 448

Craddock's patent steam-engine, condenser,
and boiler, 177, 245, 516

Croft's improvements in the manufacture of
figured or ornamental lace, 300
Crutchett's improvements in gas and gas-
lighting, 300

Daguerreotype patent, the, 76

pictures, how to produce, 518
Daniell's, Prof., oxy-hydrogen jet, 295
Davis's process of hardening steel, 15
windmill, 16

Davison's, Mr., electro-magnetic exhibition,

250

Davy safety lamp, the, 84
Deleterious gas detector, 32
Delving and crushing machine, Hall's, 33
Designs, Acts for registration of :-Present
of plate to Emerson Tennent, Esq.,
M.P., for his services in procuring, 144
Discoveries yet to be discovered, 139
Dissolving views, 51

Dock-yards, neglect in lighting, 59
Dotchin's wood-paving, 488
Drawbridge, Bowcombe Creek, 341
Dredge's suspension bridge system:-Pro-
fessor Moseley on, 19.-Mr. Dredge in
reply, 51.-Mathematical demonstration
of the principles of, 213, 234.--Remarks
on, by Mr. Clive, 406.-Mr. Dredge in
reply to Mr. Clive, 463
Dry-rot, Sir Wm. Burnett's remedy for,
484

1

Dry's patent thrashing machine, 1
Earthquake in England, 457

East London water-works' engines, 43
Echol's mode of supplying steam-boilers, 15
Eclipses, the phenomena of, how to imitate,
346

Electric columns of De Luc and Zamboni,
455

Electric fluid, Messrs. Wright and Bain's
discoveries in the transmission of, 465
Electro-galvanic deposition; Dr. Leeson's
processes, 59

Electro-magnetic exhibition, Mr. David-
son's, 250

Electrotype; recognition of Mr. Spenser's
claim to the invention of, 76
Electrotype apparatus, Wynn's, 54
Elliott's anemometer, 117

Embossing patterns on silk, cotton, &c.
Kent's mode of, 59

England the metropolis of invention, 27
Escapements, pendulum, 280, 361
Evaporation, 233

Excavating machine, American, 479
Explosion, grand, by galvanic agency, at the
Round Down Cliff, Dover, 61
Explosions, steam-boiler, 8, 120; powder-
mill, 353

Ewart, Mr. Peter (the late), biographical
notice of, 154

Ewbank's "Descriptive and Historical Ac-
count of Hydraulic and other Machines
for raising Water, Ancient and Modern,"
&c., 137

Fairbairn's improvements in iron boats, &c.,

142

Falling bodies, 360, 390, 408 !

Figures, typography of, 32

Files, worn out, how to renovate, 165

cutting by machinery, 506

Filter, Stuckey's, 474

Filtering vessels, appendage to, 128

Fire, Dr. Clanny's mode of instantaneously
extinguishing, 388

Fire-damp, explosions of, on board of col-
lier vessels, 144

Fire-engine, cheap, for union-houses, 506
Fires, London, in 1842, 166
Firing, quick, 48
Flight of birds, 389

Flower's, Mr. Henry, "Gas-meters, their

unfairness demonstrated, &c.," 56, 77
Fluids, gaseous, table of the expansion of,
398

Flying machines, 338, 354. See also Aero-
station.

Flying, mechanical; investigation of the
theory of Chabrier, 430

Foster's mortice latch, 31e

Fourness's, Mr. W., machine for ventilating
mines, 424

Furnaces, Williams's argand, 207, 304, 394,
469

Futzsche's liquid blue, 255

Galvanism, blasting by, 61, 491, 511
Gamboge, how to separate the resin in, 282.
Gas, hydro-luminous, 304

Gaseous fluids, table of the expansion of,
398

GAS LIGHTING:-Review of Mr. Rutter's
work on the " Advantages of Gas-light to
Private Houses," 56; review of Mr.
Flowers' on Gas-meters,' 56; Defriez's
dry meter, 57; want of gas-light in the
dock-yards and arsenals, 58; Mr. Clegg's
dry gas-meter, 65; letter from Mr.
Flower on review of his work, and farther
remarks thereon, 77.-Gas-meter experi-
ments at the Royal Adelaide Gallery, 89,
112.-Gas-meter rogueries-Mr. Flower
belied-Gas-meters, wet and dry, 111,
133.-Peckston and Le Capelain's rota-
tory dry meter, 113.-Mr. Wright's lec-
tures, 133.-Mr. S. Bartlett on Botten's
meter, &c., 196, 221.
Gas-lights, natural, 144

Glass, Ayers's improvements in ornament-
ing and colouring, &c., 143
Glass-staining, art of, 256
Godwin, Mr. George, jun., on architecture
for the poor, 29

Gold, virgin, immense mass of, 48
mines of Siberia, 486

Grisoles, concrete bridge of, 495
Gunpowder, explosive effects of, increased
by admixture with atmospheric air;
pointed out to Government by Mr. R.
J. Wilson in 1842.

atmospheric proof of, 506
hint for increasing the explo-