Earthenware piping, 381 



Economising fuel, in gas-works, 155 



Elasticity, defect of, 263 



Electrical and chemical forces, Faraday on, 219 



Electricity, lighting by, Staite's pat., 49 



,, of mineral veins, 189 

 Electric light, Le Mott's, 379 

 Electric telegraphs, 9, 217 



„ (rev.), 176 



Electric telegraph company, 9G 



,, copying, 191, 317 



„ dotting, 256 



„ employed by publicans, 127 



„ Holmes's improvements in, 224 



„ Hydraulic, 127 



Electro-bronzing of raetals, 127 

 Elevator for raising building materials, David- 

 son's, 92 

 Elevator, railway, Fothergill's, 3S0 

 Elmes, Harvey, death of, 61, 64 

 Elmes's history of architecture, letters on, 8,58,65 

 Embankment for reservoirs of waterworks, 197 



„ widths of, Bashforth on laying-out, 



327 

 Enamel, art of ancient and modern, 156 

 Engine and breaks, Taylor's pat., 76 

 „ boilers, Exall's pat., 342 

 „ carriages, Taylor's pat., 23 

 ,, „ Pearson's pat., 167 



„ propellers, Maudslay's pat., 305 

 ,, trains, Samuel's, 223 

 Engine, Bacon and Dixon's pat., Ill 

 „ counter, Richmond's, 61 

 ,, Crampton's pat. locomotive, 48 

 Engine furnaces, blast of, Ablon's pat., 372 

 „ governors, 255 



„ Gustafsson's vibratory piston-rod, 24 

 „ high-pressure, Alban (rev.), 211 

 „ hydraulic pressure, Glyn's, 314 

 „ propelled by carbonic-acid-gas, 178 

 „ Heaton's pat., 189 

 „ Ritchie's pat., 306 

 „ rotary, fallacies of, 284 



„ Wilson's pat-, 285 



„ steam, Regnault's theory, 236, 268, 338 



„ Sienien's pat. 249 



„ AVicksteed's, 104 

 Engineer's, civil College, Putney, 195, 240 



„ institutionof, 01, 90, 122, 155, 



185,221 

 „ Irish institution of, 63 



„ institution at the Hague, 127 



„ of mechanical, 87, 182, 



221, 283 

 „ railway guide, HaskoU (rev.), 213 



Engineering, notes on. No. VIII., 2 ; IX., 199 ; 

 X., 258; XI., 292 



„ of the Rhine and Moselle, 155 

 „ railway. Baker on (rev.), 74 

 English and Irish channels, on the tides of, 147 

 „ patents, new, lists of, 32, 64, 96, 128, 160, 

 192, 224, 256, 288, 320, 352, 382 

 Entrances to docks, Redman on, 123 

 Ericsson, on supply of water to steam-engine 



boilers, 179 

 Erskine's cocks for cisterns and casks, 185 

 Essay on the air-pump and atmospheric railway 



(rev.), W. Turnbull, 26 

 Ether, a substitute for steam, 191 

 Evans's pat. railway carriage wheels, 189 

 Evaporation, Black's pat. for, 304 

 Exall's pat. steam-boilers and engines, 342 

 Exhibition, Royal Academy, 163, 195, 218, 228, 

 326 



„ Society of Arts, 101 



Expansive and high-pressure steam-engine. Cole's 

 ptt, 342 

 „ rotary steam-engine, Wilson's pat., 285 

 „ steam-valves, improved mode of vrork'- 



ing, 141 

 „ working of steam, 158 

 Experiments on coals, 273 



„ cements, 294 



Explosions of steam-boilers, Wilder (rev.), 178 



INDEX. 



Explosions in steam-engines, prevention of, 381 

 Export and import of metals, 198 

 E.tpress, steam-boat, launch of, 319 

 Extension of south-western railway, 254 

 Extinguishing fires at sea, mode of, 318 

 Extraction of silver from its ores, Perry on, 315 

 E.\traction of gold, new method, 381 



Fall of rain, Homersham on, 449 



Fan-blast, Buckle on, 19 



Faraday, on chemical and electrical forces, 219 

 „ diamagnetic condition of flame and 



gases, 187 



Fenwick's vibration or deflection gauge, 1 



Fergusson, on ancient Buddhist architecture, 124 



Fielder's pat. beams or girders, 189 



Field's, (Mr.) conversazione, 221 



Findley, on lighthouses, 61 



Fires at sea, mode of extinguishing, 318 



Fire-cock, Chrime's pat. 107 



Fire, curious phenomena of, 127 



Fire-escape and elevator, Davidson's, 92 



Fire-proof buildings, 357 



Fire-proof wood, Payne's pat. 287 



Fishes, effects of weight of water upon, 160 



Fish traffic on railways, 334 



Flame and gases, diamagnetic condition of, 187 



Flax (Irish) Bennett, on the growth of, 31 



Flaxman's works, 96 



Fletcher's pat. for silvering speculums, 115 



Floating bodies, on the stability of, 357 



Floating tunnel across the channel, 218 



Florence cathedral, 29 



Fluids (elastic) dilatation of, 213 

 " resistance to bodies in, 106 



Fontainemoreau's pat. tubes, 216 



Fossil footmarks in the coal formation, 86 



Foreland lighthouses, 319 



Fothergill's jacquard perforating-machine, 88, 225 



Fothergill's railway elevator, 380 



Fox's (Dr.), fire-proof buildings, 



France, steam-power of, 352 



French railways and French revolutions, 119 



Friction-hammer, Jones's, 128 



Froude's pat. atmospheric railway-valves, 248 



Fuel, Azulay's pat., artificial, 52 



Fuel, combustion of, 216 



Fuel, economy of, Douche's pat., 303 



Fuel in gas-works, Kemp, on economising, 155 



Furnaces and blowing-machines, Lloyd's pat., 343 

 „ application of healed gases from, 284 

 „ reverberatory. Chance's pat., 304 

 „ steam-boiler, Baker's pat., 247 



Fyfe, on value of gases, 184 



Gallery, National, 97, 291 



Gard's pat. bor boring and sinking, 170 



Garling, on the application of sculpture to archi- 

 tecture, 201 



Gas apparatus, Watson's pat. self-acting, 342 



Gas and flame, on the diamagnetic conditioB of, 

 187 



Gases, density of, 265 



Gases, Fjfe, on the value of, 184 



Gases, heated, application of, 284 



Gas from water, 293 



Gas improvements. Palmer's pat., 25 

 „ meters, Clegg's pat., 368 



Gas motive-power, 128 



Gas, purifying with sulphate of iron, 128 



Gas-stove, Brockedon's pat., 143 



Gas, Taylor, on the purity of, 89 



Gas thermometers, Regnault on, 339 



Gas-works, economising fuel in, 155 



Gas-works, natures, 288 



Gas-works, safety pressure-gauge, 382 



Gauge, broad and narrow, Bryant's plan for 

 uniting, 30 



Gauge for steam-boilers, Newton's pat., 98 



Gauge question, compromise of, 223 



Gauge question, litigation on, 96 



Genealogist and antiquarian's companion, by W. 

 Bruce (rev.), 27 



Geological chemistry. Prof. Danbeny on, 146 



Geological discovery, 352 



Geological lectures, by Prof. Ansted, 27 



Geology of South Wales, 313 



Geometry for the million, Tate's (rev.), 138 



Geometrical lines and optical corrections of the 

 Greek architects, 150 



Georges (St.) cathedral, 2W 



Gilbert's pat. sack-holder. 111 



Girders or beams, deflection and strain of, 258 



Girders or beams, Fielder's pat., 189 



Girders, wrought-iron bowstring, 1, 200 



Gladstone's iron lever bridge, 380 



Glass-blowing apparatus. Cooper's, 92 



Glass, Chance's pat. improvements, 304 



Glass painting, by M. de Ron, 30 



Glass perforating, Lockhead's pat., 307 



Glass, plate, Hartley's pat., 144 



Glass, plate, trade, 316 



Glass tubes, on annealing, 127 



Glyn, on draining marshes by steam, 301 



Glyn, on hydraulic-pressure engines, 314 



Goldsmid's (Baron de) house, 190 



Gold, new method of extracting, 381 



Gooch, on resistance to railway trains, 155, 185 



Good's traffic on railways, 366 



Gothic window at Boppart, on the Rhine, 129 



Governors, steam-engine, 255 



Grainger's cast-iron skew-bridge, (i2 



Grain traffic on railways, 335 



Granaries, air-tight, 42 



Grandi, on the motion of water, 81 



Granite, extraordinary block of, 381 



Great Britain steamer, sale of, 320 



Great-we«tern docks, Plymouth, 318 



Greek architecture, Penrose, on the peculiari- 

 ties of, 150 



Greek vases, Dr. Harding on, 90, 91 



Green's arched timber viaducts, 33 



Green, on the sewage and drainage of Bristol, 90 



Green sand formation, phosphates in, 191 



Gregory's mathematics (rev.), 209, 249 



Gresliani professorship, 286 



Grifliths, on the natural system of architecture, 

 91 



Grimsby docks, 318 



Guano, mineral, 285 



Guglielmini on torrents, 59 



Guide to the regulation of buildings in towns 

 (rev.), 27, 55 



Gun metal, testing of, 381 



Gustafsson's vibrating piston-rod engine, 24 



Gutta percha boats, 319 



Gwilt, on pointed architecture, 29 



Gypsum, indurated, 288 



Hackney, (south) church, 255 



Hague, institution of civil engineers at the, 127 



Haigh's pat. for measuring water, 371 



Hammer, Jones's friction, 128 



Hammer, steam, Nasmyth's pat., 302 



Hann's theoretical and practical mechanics (rev.), 



375 

 Harbour, Dover, 287 



Harbours of refuge. Earl Lovelace on, 222 

 Harbours, on shoals at the entrances of, 186 

 Harding, on greek vases near Hexamili, 90, 91 

 Harding, on progress of the railway system, 308 

 Harlow's atmospheric railway, 224 

 Harmonic ratios, Purdie on the fallacy of Hay's 



theory, 148 

 Harmony of form, Hay on, 150, 185 

 Harrison, on the coast of Great Britain, 186 

 Harrison's wrought-iron tabular bow-bridge, 1 

 Hartley's patent plate-glass, 144 

 HaskoU's assistant engineer's railway guide 



(rev.), 213 

 Hastie's pat., application of steam-power to mills, 



115 

 Hay, on symmetrical beauty, 31 

 Hay's theory of symmetrical beauty, Purdie, on 



the fallacy of, 148 

 Hay, on the harmony of form, 150, 185 

 Health of towns bill, 120 

 Health of towns commission, 30 



