710 



INDEX. 



Steam-engine, the, 2, 389502 



Steam fire-engines, 59 



Steam-hammer, 20, 488 



Steam heating-apparatus, 351, 353 



Steam -navigation, 445, 499 



Steam ploughing-machines, 485, 486 



Steam printing machines, 491 



Steam -pumps, 484 



Steam-roller, 481, 483 



Steel, electro-plating on, 712 



Steel engravings reproduced by electro- 

 type, 707 



Steinheil's inventions in electric tele- 

 graphy, 546 



Stephenson, George, improvements in 

 locomotives, 462466, 470 



Stereoscope, 279288 



Stereotype-plates for printing bank-notes, 

 708 ; from wood- engraving, 706 



Stereotyping, 493 



Sterhydraulic press, 36 



Stethoscope, 113 



Stevenson, Thomas, his improvements in 

 lighthouses, 228, 231 



Stewpan, automatic, 364 



Stirling, Kobert, hot-air engines, 506 



Stockholm tar for covering telegraph 

 wires, 613 



Stockton, Robert, first screw-steamer, 452 



Stoltz's rotatory pump, 56 



Stone as a heat-conductor, 363 



Storm-clouds, 533 



Stornaway Bay, "apparent light," 232 



Stoves, 344 



Stradivarius of Cremona, his violins, 119. 

 146 



Stretchers for telegraph wires, 609, 610 



Stringed instruments, 135 166 



Sturrock's locomotive-engine, 470 



Submarine telegraph-lines, 611, 615 



Subterranean telegraph-lines, 607, 610 



Suction-pump, 51 



Sudre's musical telephone, 112 



Suez Canal, lighthouses on the, 681 



Sun-spots, telescopic and photographic 

 views of, 275, 327, 328 



Surveying compass, 526 



Swan, Professor, improved prisms for light- 

 houses, 231 



Swedish stoves, 347 



Symington, W., improvements in steam - 

 navigation, 446 



Syphon recorder for electric telegraphs, 

 619 



Talbot, H. Fox, invention of photography 



on paper, 298 

 Tambourines, 131, 134 

 Tar for covering telegraph-wires, 613 

 Taupenot's process of photography, 303 

 Telegraphy, electric. (See Electric Tele- 

 graphy.) 



Telescopes, 249278 



Telephony, acoustic signals, 108, 112 



Telyn, or Welsh harp, 159, 160 



" Temperament," in keyed musical instru- 

 ments, 163 



Temperature. (See Heat). 



Terrestrial magnetism, 527 



Tessie du Motay's process of heliography, 

 319 



Tetrachord harp of the ancient Greeks, 137 



Teulere's improvements in lighthouses 

 revolving light, 221 



Theatres, application of acoustics to, 115 



Theodolites, 257, 258 



Theorbo, 153 



Thiel, his process of heliography, 319 



Theyler's printing telegraph, 583 



Thomson, Sir W., printing-telegraph, 

 583 ; road-locomotive, 479 ; submarine 

 telegraphy, 616 ; galvanometer, 617 



Threshing-machine's, steam, 485 



Thunder, 533 



Time-dials, 637 



Time-gun signals, 646 



Time-signals, electric, 645 



Torpedoes, 646, 698 



Traction-engines, 481 



Trajan's Column, bas-reliefs reproduced by 

 electro-typing, 711 



Transatlantic telegraph-cables, 612, 613, 

 614 



Transit circle, 257, 259 



Transmitter, in Caselli's pantelegraph, 

 602; in Wheatstone's printing-telegraph, 

 594 



Transmitting machinery, of steam-engines, 

 420, 425 ; of electric clocks, 634 



Transoceanic telegraph lines, 611 



Trelle's alcoholometer, 41 



Trembly, M. du, steam and ether combined 

 engine, 503 



Treve's lantern for nautical night tele- 

 graphy, 698 



Trevethick, Richard, his first steam- 

 carriage, 461 



Triangles, 119, 120 



Triger's application of compressed air in 

 bridge-building, 82 



Tripier's electro-medical apparatus, 722 



Tripods for warming, ancient Greek, 336 



Trombones, 176 



Trumpets, 168, 175 



Trunk -engines, 429 ; marine, 456 



Tschirnhausen, his burning-mirror, 365 



Tubular steam-boilers, 407, 456, 465 



Tunnels bored by compressed-air, 71 



Tunnel, St. Gothard, 473 



Tyndall, Prof., temperature of the body, 

 359 ; artificial ice, 382 



r. 



IJhlorn, steam coining presses, 491 

 Universal telegraphic network, 630 



