Page:Encyclopædia Britannica, Ninth Edition, v. 25.djvu/451

T H T H U

437

VIII. 34; his electrometers, VIII. 119, 120, 121 ; on magnetism, XV. 249; on magnecrystallic action, xv. 266; on effect of traction on magnetization, xv. 269 ; on radiation, XX. 215; his siphon telegraph-recorder, xxm. 124; on laws of thermodynamics, XXII. 482; on condensation of vapour, ill. 386; on vortex atoms, in. 45.

THOMSON AND TAIT, on tidal retarda tion of earth s rotation, XXIII. 377.

THOMSONITE, mineral, xvi. 423.

THONEGWA, district, Burmah, xxm.

330-

THONON, town, France, xxi. 333. THOR, Scandinavian divinity, I. 210;

xvn. 156. THORACOMETER, for measuring chest

movements, XX. 477. THORARENSEN, Bjarne, Icelandic poet,

xxi. 369. THORAX, or Chest, I. 822; xx. 476; in

mammals, xv. 358. See also article

Skeleton. THOREAU, Henry David, American

writer, XXIII. 313; I. 732. THORFINN, Norse earl, in Scotland,

xxi. 480. THORILD, Tomas, Swedish poet and

critic, xiv. 29; xxn. 757. THORISMUND, West Gothic prince, in.

62.

THORITE, mineral, xvi. 424. THORIUM, chemical element, XXIII.

3i4; v. 543. THORN, plant, xi. 536; the Glaston-

bury thorn, x. 675.

, town, West Prussia, xxm. 314. THORNBACK, fish, xxm. 314; xx.

299. THORXDALE, W. H. Smith s work,

xxn. 179. THORNHILL, Sir James, English painter,

xxm. 314.

THORNTON-ON-HUMBER, abbey, Lin colnshire, England, I. 20; xiv. 656. THORSHAVN, town, Faroe Islands, ix.

39- THORSTEIN, mountain, Austria, xxi.

241. THORWALDSEN, Bertel, Danish sculptor,

xxm. 315; vn. 94; xxi. 570. THOTH, Egyptian divinity, vn. 718.

, Books of, ancient Egyptian works,

xiv. 510.

THOTHMES, kings of Egypt, vn. 735. THOU, Cristophe de, first president of

Paris parlement, xxm. 315. , Jacques Auguste de, French

historian, xxm. 315; ix. 659. THOUAR, Arthur, explorer of Pilcomayo

river, xix. 188. THOUGHT, in psychology, xx. 57, 75,

83; as subject of logical science, xiv.

780; xvi. 94. THOUGHTS IN PRISON, Dr Dodd s

poem, vii. 319.

THOUSAND AND ONE NIGHTS, Arabic tales, xxm. 316; II. 263.

THOUSAND ISLANDS, Lake of the, Canada, xxi. 180.

THRACE, country, South-Eastern Europe, xxm. 318; coins of, xvn. 640.

THRACIA, Eoman province, South- Eastern Europe, xxm. 318. 1 THRALE, Henry, friend of Johnson, xin. 727.

, Mrs (Hester Lynch, Mrs Piozzi),

English writer, XIX. no.

THRALL, Teutonic bondman, vm. 274; xvn. 529.

THRASAETUS, genus of birds, xi. 491.

THRASAMUND, Vandal king, xxiv. 59.

THRASEA FOETUS, Roman philosopher, xi. 643; xvn. 350.

THRASHING MACHINES, Invention of, I. 302; the first driven by steam, I. 305; improvements on, I. 325; port able, I. 324.

THRASYBULUS, Athenian general, xxm.

3i9- , tyrant of Miletus, XVIII. 528.

, ruler of Syracuse, XXII. 16, 814. THRASYLLUS, Choragic monument of,

at Athens, n. 411. THRAX, Dionysius, Roman grammarian,

xi- 37, 43-

THREAD MANUFACTURE, vi. 502; bleaching of, ill. 820.

THREAD-WORMS, xvn. 324; disease caused by, xvm. 270.

THREAVE CASTLE, Kirkcudbright, Scot land, xiv. 98.

THREE BEARS, The, Southey s tale, xxii. 290.

THREE BODIES, Problem of the, in astronomy, II. 759.

THREE ESTATES, of the realm, in Eng land, vm. 557, 314; xvm. 306.

THREE F. s, The, in Irish land tenure, xiv. 277.

THREE HOLY CHILDREN, Song of the, in Apocrypha, ll. 181.

THREE MUSKETEERS, The, Dumas s ro mance, vn. 522.

THREE RIVERS, town, Canada, xxm. 319; xx. 167.

THREE SISTERS, mountains, Oregon, U.S.A., xvn. 822; xxm. 800.

THREE TETONS, mountains, Wyoming, U.S.A., xxiv. 712.

THREMMATOLOGY, branch of biological science, xxiv. 802, 817.

THRENODIA CAROLINA, Sir Thomas Herbert s work, xi. 722.

THRESHER, bird, xvi. 541.

THRESHER-SHARK, fish, xxi. 777.

TH RIPS, group of insects, xm. 152; as wheat pest, XXIV. 534.

THROAT, Anatomy of the, I. 822; diseases of, xxm. 319; surgical opera tions on, xxii. 690; in relation to the voice, xxiv. 273; of birds, ill. 726.

THROMBOSIS, disease, xvm. 401. THRONDHJEM, town, Norway, xxm.

321.

FJORD, Norway, xvn. 576.

THRONES, chairs of state, ix. 848.

, in celestial hierarchy, XI. 792.

THROSTLE, bird, xxm. 321.

, cotton spinning frame, vi. 495.

THROW-BOARD, Welsh game, v. 597. THROWING, of silk, xxii. 61. THRUSH, bird, xxm. 321; migration of,

in. 765. THUANUS (Jacques Auguste de Thou),

French historian, xxm. 315. THUCYDIDES, Greek historian, xxm.

322; xi. 141.

, rival of Pericles, XVIII. 531.

THUGS, Indian assassins, xxm. 326;

suppression of, XII. 806; vocabulary

of language used by, vn. 191. THUGUT, Frans Maria von, Austrian

diplomatist, XXIII. 327. THUJA, genus of trees, n. 313. THULE, ancient Northern land, xxm.

328; XIX. 315; of Ptolemy, XX. 94;

of Pytheas, xx. 143. THULITE, mineral, xvi. 409. THULIUM, Spectrum of, xxn. 377. THUMB RINGS, xx. 562. THUMMEL, Moritz August von, German

writer, xxin. 329. THUN, town, Switzerland, in. 600. , Lake of, Switzerland, I. 3; Xiv.

218; xxn. 777. THUNBERG, Carl Peter, Swedish

traveller and botanist, xxin. 329. THUNDER, i. 107; xxin. 329. THUNDERBOLT, xxin. 330. THUNDERING LEGION, Miracle of the,

in. 87. THUNDERSTORM, xxin. 329; xvi. 128;

spectroscopic history of a, xx. 256. THUNEN, J. Heinrieh von, German

economist, Xix. 388. THUN-KHWA, district, Burmah, xxin.

33- THUR AND PARKER, district, India,

XXIII. 221.

THURGAU, or Thurgovia, canton, Switzerland, XXIII. 330; XXII. 794.

THURII, town, Magna Graccia, Italy, xxin. 331; xv. 38.

THURINGER WALD, mountains, Ger many, x. 448; xxin. 332.

THURINGIA, district, L pper Saxony, xxin. 331.

THURINGIAN FOREST, mountains, Ger many, x. 448; xxin. 332.

THURINGIAN LAW CODE, xxi. 215.

THURINGITE, mineral, xvi. 414. i THURIUM (Thurii), town, Magna Gra> cia, Italy, xxn I. 331; xv. 38.

THURLES, town, Ireland, xxin. 332.

THURLOE, John, English postmaster, xix. 564.

THURLOW, Lord, lord chancellor of