CHAMBERS'S INFORMATION FOR THE PEOPLE". 



Temper, or hardness, of steel, 410. 

 Temperature of the body, 481, 730. 

 Temperature of the globe, 43, 63. 

 Tempering, the hardening of steel by suddenly 



plunging it while red-hot into cold water, 410. 

 Temples, in Architecture, 465. 

 Tenacity (Lat. tened), a property of matter, 196. 

 Tentacles, 136. 



Tenuirostres (Slender-billed Birds), in Zoology, 174. 

 Termites, or White Ants, in Zoology, 147. 

 Terns, genus Sterna, in Ornithology, 168. 

 Terra-cotta (baked clay), 353, 355. 

 Terrestrial gravity (see Natural Philosophy), 200. 

 Terrestrial temperature, 41. 

 Terrier-dog, varieties of, 693. 

 Tertiary formation, in Geology, 31. 

 Tesserae, in Fictile Manufactures, 360. 

 Testudinidae family (Land Tortoises), in Zoology, 



163. 



TEXTILE MANUFACTURES, 369-384. 

 Thalamiflorae, sub-class in Botany, 88. 

 Thallogens, in Systematic Botany, 89, 1 1 1. 

 Theatres of the Greeks, 470. 

 Theatrical representations as an amusement, 733. 

 Thermometer, principles and construction of, 204. 

 Thoracic, of or pertaining to the thorax, or chest. 

 Thorium, the metallic base of the earth thorina, 



3i$- 



Thorough-bred, in stable language, 615. 

 Thrashing and thrashing-machines, 531. 

 Thread-worm (Oxyuris), 140. 

 Throat, in Medicine, 770. 

 Thrush, in Zoology, 174 ; as a cage-bird, 671. 

 Thrush, treatment of, 770. 

 Thunder and lightning, in Meteorology, 47 ; in 



Electricity, 267. 

 Thyme and lemon thyme, nature and culture of, 



556. 



Tic-douloureux, treatment of, 779. 

 Tides, causes and character of, 14, 60. 

 Tiger (Felidce), 186. 

 Tight-lacing, evils arising from, 732. 

 Tiles, manufacture of, 353 ; for drains, 355, 525. 

 Tillage, principles and modes of conducting, 519. 

 Tilted, in Geology, 18. 

 Time, measurement of, 9. 

 Time-gun, 300. 



Tin, in Chemistry, 331 ; in Metallurgy, 413. 

 Tincal, the India name for crude borax, 365. 

 Tissues, vegetable, 68 ; animal, 121. 

 Titanium, one of the metallic elements, 327. 

 Toads, family of (Bufoidce), in Zoology, 162. 

 Tobacco-pipes, manufacture of, 355. 

 Toga, or mantle, 790. 

 Tolls, in Inland Conveyance, 439. 

 Tongue, in Medicine, 770. 

 Tonnage, in Maritime Conveyance, 450. 

 Toothed-wheels, in Machinery, 219. 

 Topaz, natural, 400 ; artificial, 365. 

 Top-dressing, practice of, in Agriculture, 526. 

 Torbanehill mineral, 388. 

 Torpedo, in Electricity, 285. 

 Torsion, in Mechanics, 216. 

 Tortoise, land and water ; in Geology, 30 ; in 



Zoology, 163. 



Touch, sense of, physiologically considered, 124. 

 Tow, in Textile Manufactures, 370. 

 Trade-winds, causes and character of, 39. 

 Trailing, a mode, of fishing for mackerel, 711. 

 Training, different modes of, in Horticulture, 579. 

 Tramways, the original of our modern railways, 441. 

 823 



Transept, in Gothic Architecture, 474. 



Transplanting machine, in Arboriculture, 606. 



Transverse strain, in Mechanics, 216. 



Trap-tuff or tufa, in Geology, 1 8. 



Trass (Dutch), in hydraulic cements, 366. 



Travertine (a corruption of the word tiburtinus\ 

 in Geology, a calcareous incrustation, deposited 

 by water holding carbonate of lime in solution. 



Trawling and trawl-net, in Fisheries, 711. 



Trees, their physiology and culture, 593. 



Trellises, construction of, in Floriculture, 573 ; 

 plants for, 573. 



Trembling, or louping ill, disease in sheep, 653. 



Trenching, advantages of, in Gardening, 547 ; in 

 Agriculture, 521. 



Trepang of the Chinese, family Holothuridae, in 

 Zoology, 139. 



Trevithick's Cornish boiler, 420. 



Triad, in Chemistry, 318. 



Triassic System, in Geology, 28. 



Trichina spiralis, in Zoology, 140. 



Triglidae (Gurnard tribe), in Zoology, 158. 



Triglyphs, in Architecture, 469. 



Trilobites, fossil crustaceans, figured and described, 

 25. 



Trimethylamine, in Chemistry, 336. 



Tripe, 744, 762. 



Tripoli slate, natural history and uses of, 396. 



Trolling, a species of angling, 703. 



Tropics of Cancer and Capricorn, in Physical 

 Geography, 52. 



Troughs or basins, in Geology, 19. 



Trousers, origin and introduction of, 797. 



Trout, in Zoology, 157 ; in Angling, 702. 



Truffle (Tuber), a genus of esculent fungi or 

 mushrooms, 112. 



Trundle, in Machinery, 220. 



Trunk-engine, 428. 



Trunnions, in Steam-engine, 428. 



Trypots, or boilers, in whale-fishery, 718. 



Tubercles, in Medicine, 774, 



Tubers, in Floriculture, 567. 



Tube-wells, 506. 



Tudor style, in Architecture, 474. 



Tufa, in Geology, 18. 



Tulip, nature and cultivation of, 566. 



Tundras of Siberia, 59. 



Tungsten, one of the metallic elements, 327. 



Tunicata, the lowest class of mollusks, in Zoology, 

 150. 



Tunnel, in Engineering, a subterranean passage, 

 for the purpose of carrying a canal, road, or rail- 

 way, 444. 



Turban, a loose, light, oriental head-dress, 789. 



Turbinidse (marine snail family), in Zoology, 152. 



Turbith or turpeth mineral, a yellow salt precipi- 

 tated by water from sulphate of mercury (mer- 

 curic sulphate), 330. 



Turkeys, in Zoology, 171 ; domesticated, 667. 



Turnips, field, 526 ; garden, 553 ; in Dietary, 742. 



Turnpikes, 438. 



Turpentine, in Chemistry, 323. 



Turquoise, a precious stone, 400. 



Turtles, in Zoology, 163 ; in Dietary, 747. 



Tympanum, or drum of the ear, 1 27. 



Type and stereotype metal, composition, 331, 412. 



Typhoons, 46. 



Typhus and typhoid fevers, 780. 



Ultramarine, azure-stone, or lapis-lazuli ; also the 

 pigment prepared from that stone, 340, 395. 



