INDEX. 



Newton's pat. railway wheels, 300 

 Newton's pat. steel manufacture, 179 

 Newton's pat. stoves and furnaces, 56 

 Neudstadt and Barnett's calculating machine, 314 

 Nicholson, on ventilation of mines, 314 

 North-Western railway station, CamUen-town, 



122; Liverpool, 319 

 Note-book, Candidus's, 2, 33, 65, 97, 145, 161, 



195, 229, 258, 289, 322, 

 Notes of the Month, 31, 62,94, 127,159,191,255, 



286, 319, 351, 383 

 Notes on engineering. Cox, XII. 34 ; XIII. 107 

 Notes on the Pentagraph, 361 

 Notes on the year 1849, 360 

 Nuisances and dilapidations, law of, Gibbons, 



(rev.) 221 



O 



Oeliql'e bridges, Bashforth on, 147 



Oil, mineral, 96 



Oil test, Nasmyth's, 314 



Optical purposes, glass for, 122 



Oriental and Peninsular steam navy, 95 



Ornamental cast-iron windows, 63 



Ornamentation, new style of, Wbitaker (rev.) 149 



Ornaments, Gothic, J. Colling (rev.) 225 



Ornaments, gutta-percha, pattern-book of (rev) 120 



Osborne, on strength of bridges, 83 



Oscillating steam engine. Want's pat., 24 



Oscillation of railway wheels, Heatoa on, 308 



Oxalis crenata, Suarc6 on, 157 



Oxidation of rails, Mallet on, 342 



Oxides, metallic, colouring of glass and porcelain 

 by, Arnoux on, 343; Bontemps on, 343; Fara- 

 day on, 343 



Oxides of iron, Longmaid's pat., 179 



Oxygen, influence on colour of glass, Pellatt, 157 



Paddle-wheels and ships, Taylor's pat., 81 

 Paddle-wheels, Ewbank on, 210, 231 

 Paddle-wheels, trapezium float, Reonie on, 259 

 Painters in AVater Colours, Society of, 166; New 



Society of, 166 

 Paint without smell, 288 

 Paint, zinc, 62, 286 

 Paints for cloth, Pattison's pat., 180 

 Palace of Westminster, illustrations of (rev.) 27S 

 Paper-hangings, Erwood's pat., 301 

 Paper, mode of splitting, 63, 96 

 Paper, photographic, Brooke on preparation of, 



343 ; Shaw on, 344 

 Paper, waterproof, Brindley's pat., 373 

 Papworth, on architecture of Kgypt, 185 

 Parachute Ijgnt, Capt. Boxer's, 383 

 Paris abbattoirs, Grantham on, 93 

 Paris, building materials of, Burneil on, 223, 238 

 Paris Exposition of 1849, 282 

 Paris, subterranean survey of, 127 

 Parkinson's pat. gas and water meters, 311, 336 

 Patents for inventions, remarks on, 88,100, 173 

 Patents, report of committee on, 275 

 Patents Granted for England, List of— 



Fi-om 23rd Novemljer, to '21st December, 32 



From 21^t December, to 25lh January, tl-l 



From 2.'Jtli January, to 22iid February, 9f» 



From 22nd February, to 20tb March, 128 



From 20th March, to I'Jlh Aiiril, ICO 



From 10th April, to 24th May, 102 



From 24th fllay, to 7th June, 224 



From 7th June, to 24th July, '2i)l) 



From 24th July, to 23rrt August, 288 



From 23rd August, to 20th September, 320 



From 20th September, to Idth October, 3&2 



From ISlh October, to 22nd November, 384 



Patetits, Register of New — 



Brick and Tile Kiln, Swaine, 81 



Brick and tobacco-pipe moulds, Skertchley, 'jo 



Bridge girders, Gardner, 2.')0 



Casting pipes, Stewart, '2^0 



Coal tar, Smith, 17'J 



Compasses and Barometers, Napier, 79 



Corrugated iron beams. Porter, 2.'J0 



Coupling joints for pipes, NewtOD, 118 



Drilling nii-tal, Watney, 151 



Electric light, Le Molt, 80 



Patents, Register of New CconiinitedJ— 

 Electric telegraph, Bakewell, 217 

 Electric telegraph wire, Ricardo, 118 

 Extractiou of Metals, Hunt, 5»i 

 Fuel, compressed, Buckwell, 368 

 Galvanic batteries and magnets, Staite, 53 

 Gas and water meter, Parkinson, '^G 

 Gas apparatus, Baines, 23 

 Gas manufacture, Croli, 150 

 Glass silvering, Drayton, 251 

 Gun carriages, Woollett, 371 

 Iron bars, Shaw, 114 

 Iron manufacture, Lee, 82.^ 

 Iron lilanufacture, Stirling, 151 

 Iron plate bending, Turton, 83 

 Iron rolling. Clay, 4t) 



Locomotive engine, Thornton & McConnell, 176 

 Lubricating composition, Munkittrich, 373 

 Metal castmgs, Henderson, S3^* ; Shanks, 334 

 Oscillating steam-engine, Want and Venittm, 24 

 Oxides of iron, Longmaid, 179 

 Paints for cloth, PattisOD, 180 

 Paperhangings, Erwood, 301 

 Papier-mache, Briudley, 56 

 Propeller, boomerang, Poole, 23 

 Pumping engine, Newton, 281 

 Railway axles and wheels, Kilner, 372 

 Railway ivheels. Green & Newman, 334 ; Newton, 300 ; 



Wharton, 218 

 Sawing and cutting wood, Francis, 299 

 Sawing machine. Barber, 24 

 Screw propeller, Pim, 300 

 Ships and paddle-wheels, Taylor, 81 

 Sniel'ing and refining lead ores. Young, 119 

 Smoky chimneys. Hart, 23 

 Steam boiler, Seaton. 2.^ 



Steam-engines and hydraulic machines. Woodcock, 172 

 Steam-engines, Newton, 369 

 Steel manufacture, Newton, 179 

 Stoves and furnaces, Newton, 56 

 Tapering tubes, Winfield and Ward, 112 

 Tubes (metal, Taylor, 22 



Valves and cocks. Llewellin and Hemmou, 335 

 Veneer cutting and joining, Fontainemoreau, 115, 152 

 Ventilation of Mines, Gordon, 372 

 Walling, Taylor, 3(»1 

 Waterclosets, Bunnett, 119 

 Waterproof paper, Brindley, 373 

 Window back enclosures, Tutton. 281 

 White I. .id, Pattinson, 301 ; Richardson, 115 



Patentees, law for in France, 356 



Paton, on Southend pier, and ravages of marine 



worms, 382 

 Pattinson's pat, white-lead, 301 

 Pattison's pat. paints for cloth, 180 

 Paul's (St.) Cathedral, Candidus on, 33 

 Pauper industrial schools, 347 

 Payne's electric light, 127 

 Pearce's expansive steam-engine, 350 

 Pearce's expansive steam-engines, 383 

 Peat bog, aiullins on reclamation, 201 

 Peat charcoal, 63 

 Peat, valuable products of, 63 

 Pellatt, on influence of oxygen on flint glass, 157 

 Pemberton, on graduation of levelling staves, 303 

 Pentagrayh, notes on the, 361 

 Percy, on corrosiou of copper by sea-water, 342 

 Perinut, on preservation of water, 282 

 Permanent way, Dockray on, 193; Hawkshaw 



on, 185 ; Hoby on, 180 

 Pestli suspension bridge, 64, 287 

 Petersbursh, church of St. Isaac, <l 

 Phillips's Are anuihilalor, 127, 346 

 Philosophy of nature and art, J. Fergusson (rev.) 



2, 17,44,73, 110, 143 

 Photographic paper, Brooke on, 343 ; Shaw, 344 

 Photographometer, Claudet's 93 

 Pierce's pyro-pneumatic stove, 95 

 Pini'spat. screw propellers, 300 

 Pipes (iron) enamelled, 62 

 Pipes, iron, Stewart's pat. for casting, 280 

 Piping, earthenware, 62 

 Plan of Clapliara, Bland's (rev.) 120 

 Plans, arbitrators right to copy, 91 

 Plymoutii, water supply of, 25 

 Plymouth, experiments on seyssel asphalte at, 352 

 Pneumatic lilt. Gibbons, 297 

 Pointed arch, Candidus on, 66; Fergusson on, 



254 ; Wilkinson on, 255 

 Poisoned water, 256 



Poor-rates in the metropolis, inequalities of, 383 

 Porcelain, colouring of by oxide of iron, 343 

 Porter, on prices and wages, 1842-49,345 

 Porter's pat. corrugated iron beams, 58, 250 

 Posts, resistance to flexure, Houpt on, 302 



Preservation of timber, Vernet's pat., 351 

 Preservation of water, Periuet on, 282 

 Prsesure to sustain sloping banks, Neville on, 364 

 Prevention of accidents in mines, Gordon's pat., 



372 

 Prices and wages of 1842-49, Porter on, 345 

 Principle of railways, Nasmyth on, 52 

 Printing electric telegraph, Highton on, 92 

 Proceedings of scientific societies, 28, 60, 92, 120 



156, 180,222,254 

 Profits on manufacture of gas, 383 

 Progress in the year 1849, 360 

 Projecting window enclosures, Tutton's pat., 281 

 Propeller, boomerang screw, Poole's pat., 23 

 Propeller, screw, Pirn's pat., 300 

 Proposed railway bridge at Cologne, 352 

 Propontis, screw steamer, launch of, 384 

 Publication Society, Architectural (rev.) 167 

 Public and scientific libraries, 274 

 Public enterprise and patent law, 88, 100, 173 

 Public slaughterhouses, Grantham on, 51, 93 

 Public works of England — Canals, 214, 246; 



Lighthouses, 247 ; Docks, 284 

 Pulpit at Sienna, 65 

 Pulpits of England, Dollman (rev.) 225 

 Pump, centrifugal, for draining, Appold, 305 

 Pump, double-action, Easton and Amos, 213 

 Pump, free-action, for colferdams, 57 

 Pumping engine, Newton's pat., 281 

 Pumping engine of Richmond waterworks, 165 

 Punjaub, agricultural resources of. Smith on(rev.), 



359 

 Purdie on form and sound (rev.) 318, 332 

 Pyro-pneumatic stove, Pierce's, 95 



R 



Rails, abrasion and oxidation, Mallet on, 342 

 Railway and steamboat time signal, Torrop's, 159 

 Railway axles and wheels, Kilner's pat., 372 



„ „ McConnell on, 375 



Railway axles, on form of, 44 

 Railway chairs and switches, Baines, 184 

 Raihvay companies reference-book, Glynn, 120 

 Railway express engine, Stephenson's, 184 

 Railway floating bridge, Frith of Tay, 191 

 Railway, London and N.W., renewal of perma- 

 nent way, 192 ; stations of, 122, 192, 319 

 Railway stations — Camdentown, 122 ; Newcas- 

 tle-upon-Tyne, 97 ; Liverpool, 319 

 Railway taxation, Laing on (rev.) 72 

 Railway transit, Samuel on economy of, 374 

 Railway tubular bridge, Miller's, 158 

 Railway viaduct at Preston, fall of, 352 

 Railway wheels, centrifugal strains of, Cox, 34 

 Railway wheels. Green and Newman's pat., 334 ; 

 Newton's pat., 390; Smith's pat., 199 ; Whar- 

 ton's pat., 218 

 Railways, East Indian, Stephenson (rev.) 86 

 Railways in Bombay and cotton question. Chap- 

 man (rev.) 86 

 Railways in England, 352 

 Railways in Ireland, White on (rev.) 167 

 Railways' permanent way, Dockray on, 193 ; 



Hawkshaw on, 185 ; Hoby on, ISO 

 Railways, roads, &c. in bog, Mullins on, 201 

 Ramsbottora's locomotive boiler, 278 

 Rankine, on expansion of liquids by beat, 348 

 Rankine, on sea walls, 265, 319 

 Rankine on t emperature and elasticity of steam 



and other vapours, 366 

 Rapid filler for towns, Stirlings, 159 

 Rating case, important decision, 253 

 Ratios, algebra of, Browning (rev.) 293 ; Brown- 

 ing's reply to review, 331 

 Reclamation of Irish bogs, 285 ; Mullins on, 201 

 Reclamation of land from rivers, 358 

 Redman, on dock entrances, 129 

 Reduction of chloride of silver, 255 

 Reflectors and lamps of lighthouses, 287 

 Register of new patents, 22,53,79, 113, 150, 176, 



217, 249, 280, 299, 334, 368 

 Reid's young surveyor's preceptor (rev.) 22 

 Remarks on Dr. Buckland's lecture on artesian 

 wells, 3-57 



