INDEX. 



Whitwortb, on cteacsiog roads and 

 streets, 2C I 



Wicket-gate for canal locks, Low- 

 tliorp's, 241 



Wight's improvements iu railway 

 Cdrriages, 62, 153 



Wild's patent railway switches and 

 turn-tables, 0, 320 



Wilkinson on heated air, 101 



Willis, Hrof., on Canterbury cathe- 

 dral, lO'J 



Willis, Prof., on the sepulchre at 



Jerusalem, 192 

 Wilson on the decomposition of 



water, 150 

 Wilson un the electric spaik, 123 

 Wire suspension bridge, 2UG 

 Wisbeach, new docks at, 31 

 Wishaw on heated currents, 103 

 Woodhouse on solar and luuar nuta- 

 tion, 101 

 Wood's iron bridge rails, 104 



Workhouse, City of London Uoion, 



competition at, 308 

 Workiug steam expausively, 370 

 Wright's patent electric light, 335 

 Wrought-iron tubular bri(lges, 370 

 Wyalt, Digby, on the art of mosaic, 



Si 



Y 



Young's patent for safety from the 

 explosion of ether, 123 



Ziuc and gas, Sliears's patent for 



manufacture, 204 

 Zinc, Smith's patent apparatus for 



melting, 20 

 Zuydcr-zee, drciinageuf, 30, 31 



LIST OF ILLUSTRATIONS. 



Angles, measurement of, 7 cuts, 313, 



351 

 Aqua Virgine, 105 

 Arches, Barlow on, 15 cuts, 211,249 



thrust of, 5 cuts, C7 

 Architectural carvings, 3 cuts, 65 

 Area gratings, 2 cuts, 88 

 Atmospheric railway tubes, 2 cuts, 90 

 K-eakwater in Delaware bay, 281 

 Brick machine, 2 cuts, 145 

 Bridge over the Meuse, 348 

 Centre punch, 203 

 Chandelier suspenders, 4 cuts, 58 

 Civil Engineers' Institution, 72 

 Copying presses, 2 cuts, 390 

 Oanes, steam power for, 291 

 " Cricket" steamer, 332 

 Dee bridge failure, 6 cuts, 223 

 Electric light, 355 

 Electro coppering, gilding, &c., 2 



cuts, 292 

 Expanding die, 2 cuts, 295 

 Expansive steam, 370 

 Explosion of locomotive engine in 



United States, 245 

 Filtering apparatus, 2 cuts, 43 



Furnaces, improvements in, 4 cuts, 



319 

 Gas, manufacture of, 224 

 meters, 2 cuts, 290 

 Gate of Augustus at Fano, 102 

 Glass, improvements in, 27 

 Heating apartments, 2 cuts, 26 

 Hydraulic and pneumatic mahinery, 

 '380 



log, 4 cuts, 375 

 machine, 6 cuts, 287 

 Iron tubing, 180 

 Leeghwater steam engine, 2 

 Life buoys and boats, 145 

 Lighthouse apparatus, 2 cuts, 385 

 Lock furniture and spindles, 357 

 Locomotive axle box, 5 cuts, 318 



slide valve, 177 

 Long range, Warner's, 198 

 Lubricator for machinery, 2 cuts, 391 

 Model experiments, 352 

 Motion of fluids, 98 

 Oil-cake presser, 4 cuts, 390 

 Oatia, castle and harbour of, 2 cuts, 

 20 



Claudius's port at, 103 



Ostia, pharos at, 104 

 Piers and harbours, 3 cuts, 247 

 Platform of a suspension bridge, 97 

 Pneumatic and hydraulic engine, 3 

 cuts, 317 



pile-driver, Clarke and Var- 

 ley's, 91 



pile-driving machine, 388 

 Preservation of organic substances, 



178 

 Propellers for steam vessels, 2 cuts, 



88 

 Railway chair and sleeper, 2 cuts, 

 146 



chairs, 2 cuts, 390 

 curves, '2 cuts, 41 

 switches and turn-tables, 4 

 cuts, 329 



wheels and breaks, 248 

 Reversing water wheel, 2 cuts, 141 

 Rotary engines, 293 

 Screw cocks, Nasmyth's, 5 cuts, 353 

 Screw propeller, 170 

 Sea walls, 3 cuts, 215 

 Ships' anchors, 179 



and propellers, 2 cuts, 178 



Ships' logs and sounding machines, 



5 cuts, 59 

 Slub chains, 3 cuts, 356 

 " Sphynx" steam sloop, 111 

 Steam boilers, 2 cuts, 181 



engine, Knowelden's, 2 cuts, 



356 



hammer, 3 cuts, 224 

 indicator, Sydney Smith's, 399 

 Stone lifter, 2C2 

 Tessellated work, 7 cuts, 89 

 Theory of the earth, 3 cuts, 99, 131 

 Tubular bridges, 2 cuts, 143 

 Tue irons, smiths', 2 cuts, 27 

 Turning and manipulation, 15 

 Universal time table, Bashlorth's, 7 



cuts, 306 

 Warping vessels, 291 

 Water-balance winding machine, 2 



cuts, 177 

 Water closets, 3 cuts, 144 

 Wicket-gate for canal locks, 3 cuts, 



244 

 Wrought-iron girder bridges, 4 cuts, 



377 

 Zinc, apparatus for melting, 26 



DIRECTIONS TO BINDER. 



Plate 1, 2. — Leeghwater steam engine opposite page 



.. 3. — Railway switch. Wild's 



. , 5. — Cologne cathedral 



. . 6. — Nott's electric telegraph, — CroU's gas 

 meter, — Poole's steam engine re- 

 gulator, — Higgs's sewerage 



. . 7. — Architectural carvings, Gt. Malvern church 



. . 8. — Engineering works. Bridges 



. . 9. — Galloway's locomotive, — Stephenson & 

 Howe's improved engine, — Lord's 

 furnaces, — Prideaux's excavator, — 

 Gray's gas meter, — Moreland's cop- 

 per furnace 



1 



9 



33 



59 

 104 



121 



Plate 10. — House of Lords — view of eastern 

 side 

 11. — Barlow on arches 

 12. — House of Lords — view of northern 



end 

 13. — Railway lift bridge, Rastrick's 

 14. — Buckingham palace 

 15. — Carlton clubhouse 

 16. — Blade protractor, Basire's 

 17. — Museum of Economic Geology 

 18. — Railway suspension bridge, Cowper's 



opposite page 



201 

 211 



233 

 241 

 265 



207 

 310 

 337 

 369 



