JULY 6TH.-DECEMBER 28TH, 1844.
EDITED BY J. C. ROBERTSON.
"To apply to domestic convenience the improvements which have been made in science, and to
introduce into general practice such mechanical inventions as are of decided utility.
It is
thus, that we may most effectually perform what the idolized sophists of antiquity but verbally pro-
fessed to bring down philosophy from the heavens, and to make her an inhabitant of the earth."
DR. YOUNG.
PRINTED AND PUBLISHED BY JAMES BOUNSALL,
MECHANICS' MAGAZINE OFFICE, 166, FLEET-STREET.
PRINTED AND PUBLISHED BY JAMES BOUNSALL, 166, FLEET-STREET.
TO THE FORTY-FIRST VOLUME.
Auriferous pyrites of New Grenada, improve-
ments in dressing it, 138
Axles, Rowan and Co.'s patent, 256
Baddeley, Mr. Wm., on the lightning con-
ductor at the New Royal Exchange, 140,
204, 228, 325; on Col. Macerone's,
(alias Wright's) patent waterproof com-
position, 200
Bagration's, Prince, new voltaic battery, 44
Baily, (late) Francis, memoir of, 254
Baker's Periphan or improved planetarium,
177
Ballard's improvements in the manufacture
of sod and potash from sea water, 299
Barlow's railway key and wedge, 394
Battery, Smee's, new arrangement of, 378
Bavarian beer, 470
Bazin's mode of laying ropes, 442
Beale's rotary engine, 392, 463
Beams loaded vertically, flexure of, 174
Bee-house, James's, 396
Bee-preserver, Cope's, 441
Bentham's, Sir S., plans for breakwaters, 18
Bessel's discoveries respecting the stars
Sirius and Procyon, 176
Bessemer's gold paint and bronze powder, 4
Billing's electro-magnetic machine, 401
Bituminous lake, 160
Blacklead marks, erasure of by caoutchouc,
300, 427
Blasting by galvanism, 159
Bleaching machine, Alliott's patent, 161, 179
Bodies, rigid, defects of elasticity in, 270
, amorphous and crystalline state of, 13
Boiler, new, Fairbairn's, 279
Boilers, Murray on the construction and
proper proportions of, 453
Bombshell without fuse, invention of claimed
by T. H. Pasley, Esq., 118
Books, old, curiosities of, 294, 325
Boots and shoes, Hutching's improvements
in, 78
Booth and Stevenson's brick machine, 396
Botterill's, Professor, memoir on the in-
fluence of light, air, &c., on ale and porter
worts, 425
Bouch's spring for railway carriages, 170
Brayton's let-off loom motion, 396
Bread manufacture, Dr. Ure on, 345
Breakwaters, Sir S. Bentham's plans for, 18
Breechin, Lord Thurlow's, 377
Brick machine, Booth and Stevenson's, 396,
Bridge architecture, Dredge's system of, 135
Bridge of suspension over the Danube, by
Tierney Clark, Esq., 121
Brine, Sylvester's mode of evaporating, 125
British Association, York Meeting, 1844 ;
250, 269, 279, 301, 314
Bronze powder, analysis of, 4
Bronze, Chinese, 16
Bruce's skim or stubble plough, 73
Brunton's wind hammer for boring rocks, 203
Buck's paddle-wheel, 441
Buildings, a crooked one made straight, 64
Building stones, selection of, 288
Butter casks, proper wood for, 27
" how to keep it sweet, 28
Calculator, the, by J. W. Woollgar, Esq.,
212, 243, 291
Calculation, devices in, 291
Canals, screw propellers on, 48
Canal steam navigation, 288
Carriages, two-wheeled, Vipond's improve-
ments in, 168
Carr's lard-burning lamp, 440
Casting moulds, Harley and Morris's, 397
Cement, Armenian, 288
Century of Inventions, Marquis of Worces-
ter's, 408
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