Air, action of, 405

Airey's, Professor, new escapement, 28
"Albert" locomotive, 449

Albert's, Dr., mode of carbonizing turf,
90

Allen's lubricator, 138

Altitudes, average, 432

American steam engine building, 81
enterprise, 192

Andrews' door locks, 93

Anthracite iron manufacture in America,
381

cold blast, 564

Aqueduct, Croton, 512

Archimedean screw propeller, 176
Argand burner, Gold's, 478

furnace, Williams's, 19, 20, 165,
227, 595 (See also Combustion)
Arrow falling, motion of, 421
Artesian well of Grenelle, 592
Astronomical clocks, 29

instruments, oil for, 515
Atmospheric engine, Seaward's, 14, 74
-, Jersey, 200
railway, 33, 60, 63, 432, 447

--

Automaton, musical, 592
Axles, locomotive, 34, 110, 338

Baddeley, Mr. W., on pure water, 258,
396; Bunnett's railway improvements,
273; fire-engines, 364, 507; construc-
tion of cisterns, 463; Macerone's water-
proof boots-oil for astronomical instru-
ments-leathern hose, 515; mortality in
the metropolis and country, 536; clean-
ing water-pipes, 553; double revolution
steam engines, 572; extinguishing fires,
587

Baggaly's patent steel dies, 603

Baggs's carbonic acid gas engine, 433, 543
Bain's experiments on voltaic currents, 197,
293

Baker's patent boots and shoes, 232, 575
Balance, micrometer, Kershaw's, 119
Ball-cock, improved, 296
Band, the, theory of, 584

Bank notes, machinery for numbering and
dating, 308

Barometers, Readman's improvements in,
289, 390, 475, 543

Bayley, George, Esq., on the "Great
Northern steamer, and the diagonal
system of planking, 327

Bayston's apparatus for prevention of shop
robberies, 88

Beach and Lukens's brick machine, 378
Beach's type printing machinery, 476
Beard's process for colouring daguerreo-
types, 604

Bee-hive, Pataurel's, 379

Weeks's, 477

Bernhardt's plan for restoration of Ham-
burgh, 72

system of warming, 74
Bessel, Professor, 30

Bessemer's improvements in the manufac-
ture of plate-glass, 97

Bewley's patent chalybeate water, 604
Biram, B., Esq.; improvements in rotary
engines, 321, 366; paddle-wheels, 536;
ventilation of mines, 558

Birkby's improvements in wire cards, 350
Black, dyeing, Prince's process of, 158
Blast, hot and cold, processes of manufac-
turing iron, 112, 528, 564

Blasting rocks by galvanism, 70, 108, 297,
352, 368, 423, 447
Blaxland's propeller, 180, 570
Bleaching works, 221

Boccius's gas-light patent, 212, 272, 298,
327, 343

Bodmer's patent carding and spinning ma-
chinery, 414

Boilers, steam, application of Williams's
argand furnace to, 19, 58; explosion of,
144, 238

Candles, castor oil, 272

Walker's patent, 510

Candle shade, self-acting, 392

Candlesticks, Clive's patent, 414
Walker's ditto, 510

Canvas, caoutchouc, 352

Capstans, Grill's improvements in, 337
Carbonic acid gas engine, Baggs's, 433,
543

Carding machinery, Bodmer's patent im-
provements in, 414

Cards, wire, Birkby's improvements in,
350

Carlotti's patent boots and shoes, 604
Carpenter's, Capt., propellers, 180
Carpet loom, Calderhead's, 371
Carron's patent clogs and pattens, 262
Cary's grand microscope, 544
Cast-iron, spontaneous heating of, 409
Castors, Fourmont's patent, 127
Cattle, Daniell's food for, 476

Commutation tables, construction and use

of, 425, 439, 455, 489, 516, 531
Compasses of iron ships, how to regulate, 9
Concertina, the, 68

Condensers; Report on Mr. Samuel Hall's,
by Captain Sir Edward Parry and Messrs.
Lloyd and Ewart, 471; Zander's, 353,
392, 422, 444, 485
"Congress" steamer, 82
Continental barbarism, 288

Cooking apparatus, Burbidge and Healy's
(Sylvester), 225

- stove, Franklin, improved, 478
Corn-drill, Irving's patent, 545
Corn-oil, 48

Costill's turning machinery, 379

Crampton and Haddan's patent improve-
ments in steam-engines and railway car-
riages, 349

Crane's improvements in clocks, 92
Crank question, the, 74, 154, 209, 284,
305, 370

Craven's universal-jointed chimney-sweep-
ing machine, 120

Croton aqueduct, 512
Cubitt's railway rails, 113

Cumberland, George, Esq., on single line
railways, 410, 479
Cutler's patent tubes, 288

"Cyclops," H.M.S., steaming capabilities
of, 175

America, 539

Escapement, Professor Airey's, 28
Euphonon, the, 563

Evans's railway rails, 113

Expansion system, Zander's, 353, 392, 422,
444, 485

Explosive engine extraordinary, 400
Explosions, steam-boiler, 144

Farey, Joseph, Esq., C.E., on steam indi-
cators, 217

Farmers, merchant, 592

Feather-dressing machine, Manning's, 158
Fenn's coach-wrench, 391, 494
Filtration, Macerone on, 598
Fire-arms, Rousseau's patent, 350
Fire-baskets, suggested improvements in,

473

-—, on working, 474, 507

Fires, antiphlogistic fluids for extinguish-
ing, 587

Flannel, Hale's improvements in scouring,

157

Flax-mill, Marshall and Co.'s new, 236

Flour-mill, Worman's, 479

Fluids, Newton's improvements in regu-
lating the flow of, 265

Flying accomplished, 591

Fly-wheel, Lucy's substitute for, 333, 387,
438, 514