Academy of science, French, a learned cor

respondent of, 96

Accidents on railways, steam-drag for preventing, 88

Acid, sulphuric, arsenic in, 283
Agriculturists, good news for, 384

Air-pumps with and without valves, Horne's patent, 257

Airy (professor) on the measure of bars, 100 Aitken's improvements in the condensing steam engine, 172, 314

Albata metal, 208

Almanacks, old, and solar time, 39, 67, 235 America, protection of English patents in, 336 rapid mail-carrier in, 271

screw propelling in; case of Emer165.-Stevens's pro

son v. Ericsson, peller, 384

Steam navigation in, 167 American goods with English marks, 288 improvements in cotton spinning,

240

manufactures, 64, 191 American and British electric telegraphs, 400,

421

national grant to the heirs of

Robert Fulton, 271

patents, 75, 91, 316, 335
Anastatic printing, 307, 308
Anchor, Hitchings's liberating, 295
Antediluvian toads, 336

Archimedean railway, Farrell's, 129
Argand furnace, Williams's, 125
Arsenic in sulphuric acid, 288

new process for detecting, 16 Arts of design in England and France, 31 Arts and sciences, lists of new works connected with, 62, 126, 222, 284, 380, 446 Arts, society of, proceedings of, 238 Astronomical problem, 235

Atlantic and Pacific junction canal, 383 Atmospheric power, substitution of, for steam power on the ocean; by J. B. Dixon, Esq., 325

365

pressure, new theory of, 259,

Atmospheric power, railway engines, contracts for, 48

Auld's steam boiler regulator, 431
Auxiliary steam and screw power, 192; ap-
plied to the schooner "Experiment," 196
Axle, Rowan's patent, 64, 143

Baddeley, Mr. William, on the emancipation of the glass manufacture, 196; Report on London fires in 1844, 177; Strictures on Mr. Braidwood's papers for the supply of water, &c., 228, 242, 275

Barnsley gas works, explosion at, 191
Bars, on the measure of, by Prof. Airy, 100
Bay's railway rails, 92

Beale's rotary roller engines, 13, 142
Bearing, improved, for steam engine and cog-
wheel shafts; by Mr. S. G. Davis, 38
Beart's patent boring tools, 111
Bell for York Minster, 128

Bell for the table, Furlong's, 414
Benningfield's electric gun, 160
Bennet's wooden caulking, 93
Benson's pile driver, 77

Berney, T. T. Esq.; portable one-pounder gun, 417

Bewley. Mr. Richard, on steam boiler explosions, 142

Bingham's spring bolt, 318

Biram, Benj. Esq.; patent improvements in oscillating engines, 443

"Blackwall" steamer, Table of performances during the season of 1844, by Timothy Harrington, 8

Blackwell and Norris's improvements in coating metals, 108

Blast engine, the largest in the country, 240, Blofield's plan for cheapening the supply of gas, 99, 123

Blown looking-glass, 438

Bohemia, manufacture of glass in ; memoir on, by M. L. P. Debette, 281, 299, 349, 396, 497, 437

glass works of, general statistical view of, 439

Bohemian glass, remarks on, 236 Boiler, Fairbairn and Hetherington's patent, 121

Boiler explosion at the manufactory of Mr.
Samuda, 160, 208, 210, 336

Boiler flues, large and small, 10
Boring tools, Beart's patent, 111

Boulogne and Folkstone steamers, 272, 304, 320

Bradley's air-heating furnace, 319

Braidwood, Mr. James, Abstract of paper

by, oa the means of rendering large sup-
plies of water available in cases of fire;
and on the application of manual power to
the working of fire engines, 137, 147;
strictures on, 228, 242, 275

Bridge building, expeditious, on Mr. Dredge's
system, 48

Bridges, Pratt's truss frames for, 91
Bridges and viaducts, fall of, 320

Bridges, suspension, 314, 335, 354, 378, 390,
391

Bristol and Transatlantic navigation, 16
British enterprise, 16

British plate glass company, 191, 196
British and American magnetic telegraphs,
comparison of, 400, 421

Broadmeadow's process for converting iron
into steel, 317

Bucket-wheel, Dutton's patent, 318
Buckle, Verplank's patent, 75
Building act, the new Metropolitan, 183
Buildings, on warming and ventilating, by
Franklin Coxworthy, Esq., 201, 218, 230
Busse's locomotive greasing apparatus, 40
Butler's registered furnace bridge, 49, 77, 49

Camphine lamp, Wooley's safety, 215
Candles, improvements in the manufacture
of, Humfrey's patent, 109
Caoutchouc binding, 96

112, 150

vulcanized; Hancock's patent,

Cardan's rule for cubic equations, 171
Carpet, immense, 256

Carriage wheel hubs, metal boxes for, Pal-
mer's patent, 75

Carrington's hot ventilator, 415
Cartwright's (Dr.) velocipede, 24
Cask-cleansing, Messrs. Davison and Sym-
ington's process of, 16

Cassell's new patent materials for flooring,
roofing, paving, &c., 329
Cast-iron enamelled vessels, 428
Cast mirrors, 438

Catoptric spirit lamp, Wilkins and Ken-
drick's, 97

Cayley, Sir George, Bart., description by, of
an artificial hand, 152, 174, 192, 198, 217
Centrobaric mensuration, 34, 72, 116, 185,
244, 309, 387, 436

Century of inventions, the Marquis of Wor-
cester's, 82

Chaff-cutting machine, Joyner's, 264

Ward, Colbourne, & Gillets', 33
Cheverton's, Benj. Esq.; on Pilbrow's system
of atmospheric propulsion, with a post-.
script on the removal of Sunderland light-
house, 68

Childs' (A. D.) improvements in horse
power, 316

Chimneys and smoke-jacks, antiquity of, 444
lofty, repair of, a case for opinion,

369

Chimneys, how to extinguish fire in, 208
Chimney roof, and apparatus for sweeping,
Kite's patent, 161

Choate's new system of rigging, 92

Christy, John, Esq., testimony by, to the
durability of Beale's roller rotary engine,,
21

Cinder-sifter, Hewetson's, 123

Clark's fire escape, 239

Clive, J.H. Esq.; plan of suspension bridges,
391

Clocks, electric, Bain's, 128

Clocks at railway stations, on the construc-
tion and regulation of, by B. L. Vulliamy,
Esq., 370, 410, 417

Coal-gas, Malam's patent improvements in
purifying, 273, 289, 305, 321
Coffee, essence of, Staite's, 384
Colbourne, Ward, and Gillet's chaff-cutting
machine, 33

Collectanea Minora Technica, gleaned from

the registries of useful and ornamental
designs, 414

Collin and Bourne's Victoria glove-fastener,
414

Combined cylinder engines, Sims's, 64
Combustion, spontaneous, 182

Compass, the neutralization of the local at-
traction of iron ships on, 312

Composition and resolution of forces, 323
Concave-bottomed kettle, Williams's, 415
Condensing steam engines, Aitken's patent
improvements in, 172, 314

Condie's, Mr., claim to the invention of the
hot-blast, 297

Cook, Mr., on the crank question, 135
Cooper's patent for doubling cotton, &c., 440
Copper, method of obtaining, from the ore,
Ritchie's patent, 440

Cork-sole boots, M'Cauley's patent, 335
Cornish engines, historical notice of, by
Capt. C. W. Hughes, 42, 356

Cotton, doubling of, &c., Cooper's patent,
440; preparing, slubbing and roving,
Groom's patent, 442

Cotton spinning, American improvements
in, 240

Cowan's gas retorts, 108

Coxworthy, Franklin, Esq.; on warming and
ventilating buildings-fermentation and
putrefaction-theory of rain and artificial
light, 201, 218, 230-233

Crank question, 11, 47, 53, 135, 173, 272,
333

Crosley, Henry, Esq. C.E., on the boiling
of sugar by steam, 125
Crutchett's improvements in gas-light, 316
Cubic equations, 19, 246, 298

Cumberland, George, Esq., suggested im-
provements by, in the daguerreotype pro-
cess, 421

Cummins, Mr. Chas., on roller escapements,
31

Cylindrical printing press, Hoe's patent, 92

Daguerreotype process, suggested improve-
ments in, 421

Davison and Symington's, Messrs., process
of cask-cleansing, 16

Davis's improved bearing for steam engine
and cog-wheel shafts, 38
Debette, M. L. P., memoir by, on the manu-
facture of glass in Bohemia, 281, 299,
349, 396, 427, 437

Design, arts of, in England and France, 31
Differential gearing and stern propellers,
Hays's patent, 193

Dircks, Henry, Esq.; new mode of engra-
ving, called ivory engraving, or Durer-
type, 20, 140; on the argand furnace, 125
Direct-action engines, 357, 393, 405, 444
-screw-propeller engines, Mauds-

lay & Co's., 401, 423
Diving bells, 48

Dixon, J. B. Esq., on the substitution of
atmospheric power for steam power on the
ocean, 325

Double cylinder marine engine, Hick's, 113
Downing's tanning process, 319
Drain-tile and sole-making machine, Young
and Boyle's, 337

Drain tubes and tiles, Ford's patent, 439
Dray's registered fruit gatherer, 409
Dredge, Jas. Esq., investigation by, of the
causes of the failure of the suspension
bridge at Yarmouth, 390
Dredging machine, Letestu's, 160
Drill or borer, Grant's patent, 93
Dundonald, Earl of, and the Janus steam
sloop, 351

Durertype, or ivory engraving, 20, 74, 140
Dutton's bucket wheel, 318

Elbow or knee-jointed lever, investigation
of the principles and power of, 341
Elbow-jointed pall for working windlasses
with double speed, Kendall's patent, 408
Electric clocks, 128

gun, Beningfield's, 160

telegraphs, English and American,
comparison of, 400, 421

telegraph London and Gosport, or
South-Western, 48, 96, 192

telegraph, Heighton's patent, 122
telegraph, and Time, 416
Electricity, application of, in the extraction
of metals, 432

developed in the manufacture of
machine-made paper, Dr. Hankel on, 30
lighting by, 25, 200

Electro-culture, 90

Elements of physics, Peschel's (review), 328
Emerson v. Ericsson, case of ;-screw pro-

pelling in America, 165

Enamelled cast iron vessels, 428

Engines, small and large, 184

Fires, on the means of rendering large sup-
plies of water available at, &c., by Mr.
Braidwood, 137, 147

of London, in 1844, Mr. Baddeley's
report on, 177

Fitch, John, one of the early promoters of
steam navigation, monument to, 384
Fitzgerald's sub-marine gun-boat, 318
Fletcher, Mr. Wm., claim of, to the invention
of the rapid mail-carrier, 416

1

Flooring, &c., new materials for, Cassell's
patent, 329
Folkstone and Boulogne steamers, 272, 304,
320

Forces, composition and resolution of, 323
Ford's drain-tubes and tiles, 439
Free-trade, and trade in fetters, 48
Fruit-gatherer, Dray's, 409

Fuel, Tetley's plan for economising, in the
boilers of locomotives, 86

Fuels, artificial, Warlich's-Wylam's, 348
Fulton, Robert, grant to his heirs, 271
Furlong's table-bell, 414

Furnace-bridge, Butler's patent, 49, 77
feeding apparatus, Whiteley's, 145
portable, Waring's patent, 76
Bradley's, 319

Galvanic shower-bath, Middleton's, 412
Gardens, the New Royal, 384