THE MECHANICS' MAGAZINE, MUSEUM, Register, Journal, AND GAZETTE, JULY 6TH.-DECEMBER 28TH, 1844. EDITED BY J. C. ROBERTSON. VOL. LXI. "To apply to domestic convenience the improvements which have been made in science, and to LONDON: PRINTED AND PUBLISHED BY JAMES BOUNSALL, MECHANICS' MAGAZINE OFFICE, 166, FLEET-STREET. 1844. TO THE FORTY-FIRST VOLUME. Bazin's mode of laying ropes, 442 Bentham's, Sir S., plans for breakwaters, 18 Bessemer's gold paint and bronze powder, 4 Blacklead marks, erasure of by caoutchouc, Blasting by galvanism, 159 Bleaching machine, Alliott's patent, 161, 179 -, amorphous and crystalline state of, 13 Booth and Stevenson's brick machine, 396 fluence of light, air, &c., on ale and porter 420worts, 425 Arts and sciences, lists of new works con- Atmospheric marine steam engines, 220, 239, propulsion, Pilbrow's improved system, 417 -railways, Aitkin's improvements Hallette's system of Roberts's improvements railway, French, 100 Auriferous pyrites of New Grenada, improve- Bagration's, Prince, new voltaic battery, 44 of soda and potash from sea water, 299 Bouch's spring for railway carriages, 170 Brick machine, Booth and Stevenson's, 396, Brine, Sylvester's mode of evaporating, 125 Bronze, Chinese, 16 Bruce's skim or stubble plough, 73 Brunton's wind hammer for boring rocks, 203 Buildings, a crooked one made straight, 64 Butter casks, proper wood for, 27 ", how to keep it sweet, 28 Calculator, the, by J. W. Woollgar, Esq., Calculation, devices in, 291 Canals, screw propellers on, 48 Carriages, two-wheeled, Vipond's improve- Carr's lard-burning lamp, 440 Casting moulds, Harley and Morris's, 397 Century of Inventions, Marquis of Worces- evidence, fallacy of, 345 Chemistry, college of, 111 Dumas's system of, 102 Chimney ventilator, Clement's, 193 China, new plant from, 43 coal in, 159 Chinese bronze, 16 Chlorine, new commercial products from, 164 of terra-cotta, 159 Churn, Rowan's, 97 Chrome, compounds of, 101 Circular arcs, the geometry of, 122, 136, 191 pyro-hydro-pneumatic apparatus for Clayton's drain tiles, pipes, &c., 395 Cloth, making it by the mile, 159 gas, on the purification of, 431 mines, suggestions for preventing acci- Cobby's apparatus for converting the motion Collandeau's new steam-pressure gauge, 41 -, certain, singular effects of, in juxta- Colouring matter, Crum on the manner in Conical balance valves, McDonough's, 397 Cooking apparatus, Warr's, 33 stove, Mott's, 398 stove, Pettes's, 399 Cope's bee-preserver, 441 Copper, new oxide of, 99 Copperplates, photographic engraving of, 236 Copper trade with India, 352 Coprolite mystification, 13 Copying instrument, Hollamby's, 371 Cornwall, the fishing boats of, 172 Corrosive sublimate, antidote to, 208 Cotton's combination lock, 396 Coxworthy, F. Esq., on warming and venti- Crank, substitute for, Lipscombe's patent, Croll on the purification of coal-gas, 431 13 Curiosities of old books, 294, 325 Curves, Jopling's septenary system of, 247 Dalton, Dr. John, death of, and notices re- Damp walls, 288 Danube, suspension bridge, 224 Datum plane, and Ordnance Survey, 314 De Morgan's, Profr., rectification of a mis- Dircks, Henry, Esq., on the patent Argand Direct-action engines, the invention of Mr. Ditné on the expansion of glass, 22 Diverging and converging series, on, 334, 424 Drayton's patent for silvering glass, 125 Ballee Khal, in India, 257 Dundonald's, Earl of, rotary engine; exten- Earthquakes, statistics of, 480 Easter-day, 1845; Professor De Morgan's Elasticity of metals, 238 in rigid bodies, defects of, 270 Electrical steam machines, 96 Electricity applied to the manufacture of Electro-telegraphy, 320 Energiatype, Mr. Hunt on the, 302 INDEX. Engineering, Weale's Quarterly Papers on, English steam-engines in France, 304 Essences, vegetable, 192 Etching, history of, 159 Excise system, the evils of, 346 Explosion on board the "Gipsy Queen," of the American locomotive "Richmond;" investigation of the cause Fall of a mill at Oldham, from defective Farey, John, Esq., on the cost of raising Fishing boats of Cornwall, 172 Fish oils, purification of, 101 Fixed stars, enumeration of, by Mr. Wooll- Fletcher's improved mangle, 289 Foreign science, 13, 20, 41, 99, 235 Fownes, Dr., on the preparation of artificial France, English steam-engines in, 304 indigo, 99 law of patents, 63 Friction, rolling, of carriage wheels on rail- apparatus for preventing, 359 Furs, &c., effectual mode of preserving them explosion of gunpowder, by double -,growing potatoes by, 224 Garratt's thrashing machine, 128 patent chaff-cutter, 49 Gas-lamp, Jones's pendant, 305 Geometry of circular arcs, 122, 136, 191 louvres, 452 Glass, on the expansion of, by M. Ditné, 22 Gold ores of Merionethshire, 316 paint, Bessemer's, 4 Green colour without arsenic, 64 Grove, Professor, on a photographic process Guano, caution as to the use of, 384 -, galvanic explosion of, by dou- Hankin's pedimechan, or spring propeller, Harbours of refuge, Captain Vetch on, 66 Hardy's patent improvements in tube roll- Harlem lake, drainage of, and description of Harley and Morris's casting moulds, 379 Heard's reclamation of the introduction of Hemp-preparing machine, Montgomery's, Herschell, Sir John, on the amphitype, 301 Houses of iron, 400 Hughes's patent crimpling, fluting, and Hunt, Mr. R., on the energiatype, 302; on 171 Hutching's registered improvements in boots Hydraulic mortar, 100 Hydrostatic break, Lipscombe's patent, 113 Ice-making machine, Masters's, 118] rubber, why does it not soil after being Ingenuity misdirected, 320 Institution of Civil Engineers, 475 Inventors, encouragement to, 381 Invisible writing, 192 Ireland, tide observations on coast of, 314 V |