Proboscis of the hydrometra stagnorum, 140 Rail-ways, Baader's, 30 Raisin wine, Aikin on making, 115 Red inks, improved, 85, 86 Red straw, on dyeing, 233 Red feathers, on dyeing, 253 Red enamel, on, 372 Regulating heat, M'Sweeny on, 338 Rennie on friction, 159 Rice paper, Chinese, 174 Rifling-machine for gun-barrels, Gill's improved one, 93 Saws, pit, furnace for hardening them, 9 Scale of the dolphin, 209-Of the chameleon, 336 Scales of a foreign curculio, 77-Of a foreign butterfly, 77 Scarlet pigment from mercury, Scotch whiskey, on making, 178 151 Screw-cutting tools, Editor on, 292 Screws, Editor on making solid and hollow ones, 289 Screws, Jones on cutting, 258-Editor on making large ones, 261 Ship-building, on improving, 121 Ships, Cary on preventing the dry-rot in, 240 Silicate of iron, 148 Silver and copper, to separate, 177 Skins of animals, Brookes on preserving, 150 Smith's improved melting-pots, 168 Smith on the advantages of the division of labour, 266—On pin-making, 268 Smooth files, Gill's improved ones, 9 Snuffers, Gill's improved ones, 311 Spiders, hairs of, 68, 76 Springs of hammered iron, Editor on, 292 Spurs, on Gill's elastic plated ones, 9 Staphalinus, its antennæ, 140 Steam-bath, Hawkins's domestic medicated one, 294 Steam-engine improved by Watt, 22 Steam employed in destroying white ants, cock-roaches, &c., 101 Steel-works Editor on fine ones, 275 Steel beads and studs, Editor on making, 274 Steel buttons, Editor on making, 280 Stewart on Scotch whiskey, 178 Stone, enamel paintings on it, 184 Straw works, French, 228 Straw, on bleaching, 229 Sullivan, on Winans's rail-way carriage, 23 Sword-blades improved by the late Mr. T. Gill, 12 Symphonion, Wheatstone's; 63 Tallow, an improvement in fusing it, 156 Telescope, graphic, on Varley's, 306 Terredo navalis, T. Carpenter on it, 321 Test-machine, Boulton's, for bending sword-blades, 14 Transfers in lithography, Netherclift on making, 100 Transfer paper for lithography, Netherclift on making, 100 Tully's mode of mounting transparent objects, 315-His micrometers, 315 Tyger lilly, farina of, 68, 76 Varley's graphic telescope, on, 306-Chemical lute, 114 Viper, poison-fang of one, 200, 210 Watch-glass, on a singular whirling motion of a, 19 Waterton on preserving birds, 87 Water-colours, Robertson on improved painting in, 245 Water-mills, improved ones, 17 Watkins's galvanic pile, formed of one metal only, 154 Wax introduced into flour-paste, 114 Wedgewood, Josias, notice of, 20 Wheaten flour and albumen lute, 113 Wheaten flour and gelatine paste, Clay's, 115 Wheatstone's symphonion, 63 Wheel animalcule, Editor on it, 333 Whiskey, Scotch, on making, 178 White ants, &c. destroyed by steam, 101 Winan's rail-way carriage, 23 Winding up clocks, on, 355 Wine, raisin, Aikin on making, 115 Wollaston on malleable platina, 179 Wollaston's microscopic doublet, Gould's, 313 Yellow ink, 86 Yellow straw, on dyeing, 233 Yellow feathers, on dyeing, 254 Yellow enamel, on, 378 |