Stocking machinery, Sneath's patented im-
provements in, 222
Stone, artificial, Swindell's, 77
Styx, the steam frigate, 375
Sugar cane mills, Robinson's patent, 258,
362, 505
Sulphates of iron and magnesia, Gregson's
patented improvements in preparing, 13
Sulphuric acid, Hills' patented improve-
ments in manufacturing, 349
Sun, rotation of the, 80
Sunderland lighthouse, removal of the, 7,
192, 408
Superb fire-engine, 176
Swimming apparatus, Cox's patent, 108
Symington, the inventor of steam naviga-
tion, 130, 161, 180, 481
system of condensation, 446, 502
Devastation, 336
Duchess of Kent, 165, 245, 347
Duke of Sussex, 165, 347
Warrington's patented improve-
ments in, 286
Tate, Mr. T., on an electro-magnetic ma-
chine, 114
Tayler's floating breakwater, 354
Taylor's patented improvements in propel-
ling, 450
Telford, life and labours of, No. XI.-The
Nene outfall and North Level drainage,
324. No. XII.-Telford's latest works,
retirement, death, and funeral, 499
Tent, immense iron, 224
Thames tunnel, the, 416
steamers, 22, 89, 234, 246, 256
v. Clyde-built steamers, 89, 219,
245, 246, 281, 394, 460, 477, 479
Theory corrected by practice, 495
Thermometers, 494
Thrashing machine, Pryor's patent, 95
Plenty's horse-power
Thunder storm at Liverpool, 203
Tracing and etching, Barber's patented
improvements in, 109
Trans-atlantic steam navigation, advantages
of to manufacturers, 240
Trapezium paddle wheels, Rennie's, 165,
377
Watson's double canal boat, 377
Wearing apparel, Barsham's patented im-
provements in fastening buttons on, 335
-, M'Evoy's patented im-
provements in fastenings for, 335
Weaving, England's patented improvements
in, 238
Kenworthy and Bullock's pa-,
tented improvements in, 93
, M'Bride's patented improvements
Weighing by means of cranes, Goodacre's
patented improvements in, 301
machines, Dampier's patented
improvements in, 348
Welsh coal fields, the, 224
Whalebone, Kortwright's patented improve-
ments in preparing and working, 288
Wheat, Newton's patented improvements in
cleaning, 138
Wheels and axles, Holcombe's patent lu-
bricating composition for, 239
Wheeled carriages, Adams's patented im-
provements in, 57
Whitelaw and Stirrat's water mill, 6, 254
White's patent brick and tile-making ma-
chine, 370
Whitworth's mechanical street sweeper,
464
Whitworth, J., Esq., on an uniform system
of screw threads, 339
Wicksteed's experimental enquiry into the
merits of the Cornish steam engine, 427
Wigney, G. A., Esq., on the theory of heat,
35; on the inherent activity of matter,
364; on the percussive force of steam,
371
Wilkinson, Mr. J. J., historical account of
wood sheathing for ships, by, 236; on
lead sheathing for ships, 298
Wilkinson, Dr., on warming houses by
heated water, 297
Williams, C. W., Esq., on peat fuel, 106;
on the admission of air to furnaces, 200,
214, 290, 310, 431, 436; on the genera-
tion of smoke, 118, 473; on the causes
of injury to steam boilers, 455, 507; on
the evaporative powers of boilers, 327,
338, 392, 410, 436
Williams's mercurial safety valve, 402
Wilme's hand-book for engineering draw-
ing, 205
Windlasses, Anderson's patented improve-
ments in, 334
Gryll's patented improvements
in, 58
Window blinds, Andrews's patented im-
provements in raising and lowering, 175
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