Engineering Wonders of the World
Volume III

Wax experimental models of ships, I., 356. Weaver sluices, I., 160, 164. Webster, John J., on “ Transporter Bridges,” L, 287-299. Weirs—Bari Doab Canal, III., 240; Chenab River, 238 ; Lake Fife, 246; shutters, 238. Wellington, Duke of, supports the Thames Tunnel scheme, I., 190. Wells—petroleum, see “ Oil-Fields, Engi- neering in the World’s,” IL, 321-341; water, see “ Artesian Wells, and How they are Bored,” III., 335-346; wells in Kent, III., 196. Westinghouse air brake, IL, 248-251. Wetterhorn Electric Aerial Rail- way, The, IL, 189-192. Wheeler, Albert G., I., 362, 367. White Horse Rapids, I., 28, 29. White Pass and Yukon Railway, see “Railway of the Far North,” I., 21-33. Williams, Archibald, on “ Ancient En- gineering,” I., 5-20; “The Salving of H.M.S. Gladiator,” I., 41-48; “ The Story of the Severn Tunnel,” I., 79-89 ; “ The Great Zambesi Bridge,” I., 90-101 ; “ A Wonderful Aerial Ropeway in the Andes,” I., 119-127; “The Bridges of the Menai Straits,” I., 142-152 ; “ The Thames Tunnel,” I., 181-192 ; “ The Great Victoria Bridge,” I., 205- 214; “ The Story of the Forth Bridge,” I., 321-337 ; “ The Con- quest of Chat Moss,” I., 368, 369; “ Scherzer Rolling Lift Bridges,” II., 44-49 ; “ The Barmen-Elber- feld Railway,” II., 125 ; “ Railway Brakes,” IL, 246-251; “Theory and Principles of the Aeroplane,” III., 5-13 ; “ Flying Machines of To-day.” III., 15-28 ; “ Aeronauti- cal Engines,” III., 29-37 ; “ The Construction of Aeroplanes and Propellers,” III., 39-44 ; “ Dirigible Balloons,” III., 45-63 ; “ Harbour Construction,” III., 65-79 ; “ The Great Tunnels through the Alps,” III., 148-162; “Great British Dams and Aqueducts,” III., 177- 192; “ How London gets its Water,” III., 193-208; “The Wonderful Drainage System of London,” III., 209-225;“ The Kinlochleven Works of the British Aluminium Company,” TIL, 272-277; “The Arch Bridges of Niagara Falls,” III., 278-287 ; “ Agricultural Engineering,” III., 288-299. Williams, Leslie, on “ The St. Louis Bridge,” IT , 163-171. Williams, Sir Edward Leader, I., 153, 155, 166, 171. Wilson, J. S., on “ The Nile Dams and the Assouan Reservoir,” II., 385- 408. Wilson, Professor Erasmus, II., 24. Winchester Cathedral, underpinning of, III., 312-315. Winstanley’s lighthouse, I., 370, 371. Wireless telegraphy, I., 202 ; III., 376. Wolf Rock lighthouse, I., 375. Wonderful Drainage System of London, The, IIL, 209-225. Drainage the complement of water supply, 209 ; the problem of draining London, 209 ; the old rain sewers and house cesspools, 211 ; difficulty of discharging sewage into thø Thames, 211 ; reforms urgently- needed, 211. Scheme of inter- cepting sewers authorized in 1856, 211 ; the scheme, 211, 212 ; storm relief sewers, 213; pollution of Lower Thames, 214 ; inquiries held, 214 ; chemical treatment of sewage introduced, 215. Barking Outfall works, 215 ; precipitation channels, 215 ; sludge and sludge vessels, 217 ; dumping sludge at sea, 219 ; new sewers, 219; sewer construction, 219 ; figures of discharge capacity of sewers, 221; sewer men’s duties and dangers, 221. Pumping sta- tions, 221 ; Abbey mills, 221 ; Lot’s Road, 223, 224; Crossness, 224; other stations, 224; sur- prising figures, 224; effect of good drainage on public health, 224. Workmen, Indian and Burmese, II., 434. Wright, the brothers, III., 11, 12 ; early experiments, 15, 16; first flights, 17 ; records, 17 ; their aeroplane described, 18, 19 ; their engine, 30. Y Yellowstone River, II., 89. Yukon River, L, 21, 22. Z Zambesi Bridge,The Great,!., 90-101. Site of, 91 ; design, 92, 93 ; bearings and skewbacks, 94 ; cable- way at, 95; foundations, 96; method of building, 97 ; arch span joined, 98 ; painting, 100 ; testing, 100 ; appearance of the bridge, 101. Zambesi River, I., 90. Zeppelin, Count F. von, III., 1; his dirigible balloons, 48, 49, 52-56. [ 402 1