Carr's improvements, 189
Cornish, 21, 224, 368

Craddock's condensing system, 247
Ericsson's two semi-cylinder engine,
441.

Expansive engine erected by Messrs.
Rennie at Mr. Cubitt's, 232, 266
Haddington marine, 145, 206
Harold's grease cup, 137
Henson's patent condensing, 33
Hero's Engine, 309
Hoblyn's Manual, 309

Invention of the cylinder and piston,
310

Leonardo da Vinci, 32

Meriton's slate valves, 232, 283
Messrs. Maudslay and Field's practice
in construction of valves, 282
Miller's improvements, 286
Parkes percussive theory, 89
Pike's metallic pistons, 77
Pilbrow's cylinder condensing, 66, 101,
103, 141, 224, 251

Rathen's high and low pressure im-
provements,, 157

Seaward's, Messrs. J. and S., improve-
ments (1842), 143

ric marine, 502

atmosphe-

Sheathing boilers with lead, 144

Symington method of condensation,

251

Taliesin marine, 96, 480

Walker's (Thomas) improvements, 29
See also Boilers, Locomotives, and
Railways.

Steam fire engine, Capt. Ericsson's, 384
STEAM NAVIGATION :--

American locomotive steamer, 442
American Marine, of Messrs. Ward,
Stillman, and Co., 417
Anti-John Scott Russel, 240, 253, 264
Archimedes, the, 26, 106
Atlantic, the-Liverpool and Bris-
tol Lines, 8, 205, 416
Clyde steamers, 240-252
Clarion, the, 368

Comet, the, and other vessels on the
Shannon, 159

East India Company's frigate, Mem-
non, 144

East India Company's frigate Acbar,
416

Fletcher's Dispatch (with the Syming-
ton condensation) 241

Great Britain (late Mammoth) 240,

415

Great Western, 416
Hindostan, the, 352
H. M. F. Geyser, 154
Infant Prince, the, 456, 502
Kamstchatka, 222

Little Western, 128, 140, 192

Locomotive, the, No. I., 415

Of the Danube and Black Sea, 368
On the Volga, 319
Penelope, the, 280
Precursor, the, 368

Royal Mail Company's ships, 256
Taliesin, the, 96, 480

True principles of velocity, 422
Telegraph-explosion of, 9, 271
See also Propellers and Propelling
Steam ploughing, 256, 320

Steering apparatus, Evartz's, 444; Hunt's,
456
Stephenson, Robert, Esq., C.E.; his latest
improvements in locomotive engines, 30
Stevens and King's candlesticks and candle-
holders, 30
Stevenson, David, Esq., C.E.; Treatise on
application of marine surveying and hy-
drometry to civil engineering, 303
Stewart's improvements in piano-fortes,

Timber, worm in, 410

-, expense of rearing, 480
Time, general standard of; Plan for esta-
blishing, 160

Timperley, Mr. John; description of process
of Kyanizing, 405

Tools, English and American, 335
Townshend, Mr. Richard; description of
the Ponte della Madelena, 301
Trivial, origin of the word, 107
Trovillo's improvements in manufacture of
white lead, 268

Trunks, Getz's waterproof, 446
Tunnel, great colliery, 336
Turbine, the, 411

Turner, Mr. John; improvement of Hol-
born Hill, 378

Tyler's spring leaf-holder, 398

Type composing machine, Young and Del-
cambre's, 497

Walker's (John) water elevator, 209, 262,
282, 315, 320, 421, 474, 503
Warren's screw-cutting machine, 125
Water-mill, Whitelaw and Stirrat's, 160, 488
Water-pipes, freezing of, 19
Water elevator, (S. P's.) 297
Water-pressure, engines, at Illsang, in
Bavaria, 299; the Turbine, 412
Waterproof cloth, 201

Water, hot, apparatus, 420
shoes, 48

spring, containing arsenic, 296
-,velocity of, instruments for measur-
ing, 305

-,instruments for obtaining, from dif
ferent depths, 306

Water, velocity of, through pipes, 375
Waterwheels, Robbins and Ashley's im-
provements in, 268

Watch manufacture of Switzerland, 191
Waves, height of, 368
Wedge, the, 313

Weighing machines, Methley's, 46
Weights and measures, standard, 256
Welch's (J. W.) improvements in smelting,
93

Western, the Great, 416

the Little, 128, 140, 192
Wheeler's roller for window blinds, 281
Wheels; Losh's improvements, 46;
Phipps's, 74; Onion's, 75

law of, 181

Wigney, G. A., Esq.; plan of a break-
water and harbour of refuge for Brighton,
70, 193

Wilkinson, J. J., Esq., on copper sheath.
ing, 403

Williams, C. W., Esq.; on furnaces and

boilers, smoke nuisance, &c., 4, 23, 118,
120, 129, 183, 203, 215, 243, 259, 291,
322, 492; on Mr. Armstrong's theory of
diffusion of gaseous bodies, 62, 86
Williams's (O.) improvements in propel-
ling, 124

Williams, P., Esq.; passenger-propelled
locomotive, 413

Wilson's improvements in manufacture of
leather, 478

Windmills, Garver and Fahrney's, 444
Window-blind roller, Wheeler's, 281
Wood rendered fire proof, 115; which
sort least liable to warp, 251; preserva-
tion of, 405

paving, 412, 477, 478, 480
Woollen machinery, Hickes' improvements
in, 190; Hirst and Weight's, 317
Worms in garden paths, how to destroy,

106

Wright and Bain's electrical clocks, 48;
electro-magnetic railway controller, 96,
97; electrical experiments on the Ser-
pentine, 469

Young's improvements in lamps, 75
Young's (James) improvements in the
manufacture of ammonia, 415

Young and Delcambre's type composing
machine, 497

Zink, alleged adulteration of, 359, 399
Zoofagous paint, Mallet's, 43