GENERAL INDEX 
783 
Tertiary volcanic rocks, distribution of, 
456, 457. 
igneous rocks intrusive in, 457. 
Testacea, 325-326. 
Tetlow, W. E., 149, 212. 
Tezcuco, Lake, 560. 
Thallophyta, 357. 
Thermocline, 107, 635. 
Thiele, River, 594. 
Thinemann, A., 404. 
Thingvallavatn, Lake, 380, 418, 598. 
Thirlmere, Lake, 149. 
Thompson, Isaac, 24. 
Thonsvatn, Lake, 598. 
Thoulet, J., 14, 131. 
Thrust-planes of post-Cambrian age, 441, 
442. 
Thun, Lake of, 594. 
Tiberias, Lake of, 523, 545. 
Tibet, lakes in, 515, 539. 
Ticino, River, 588, 590. 
Tien- Chi, Lake, 604. 
Tigri, Shott el, 549. 
Tigris, River, 543. 
Tillo, — , 533. 
Tingwall, Loch, plankton of, 349. 
Tiohge, River, 568. 
Titicaca, Lake, 569, 570, 571. 
Tjustrupsi), 418. 
Tlahualila, Lake, 562. 
Toba, Lake, 605. 
Toce valley, 590. 
Tokaanu (hot springs), 642. 
Toma, Lake, 593. 
Tomdok, Lake, 539. 
Tonle Sap, 604. 
Topography of Scotland, evolution of, 
457-469. 
sculpture of the North- West High- 
lands, 459. 
sculpture of the Grampian Highlands, 
462. 
sculpture of the Midland Valley, 465. 
sculpture of the Southern Uplands, 
466. 
Tormasad, Loch, plankton of, 348. 
Torne Triisk, Lake, 376. 
Torrens, Lake, 563, 564. 
Torridonian rocks, classification of, 440. 
distribution of, 441. 
unconformability at base of, 440. 
Tortulacese, 187. 
Town Loch, Dunfermline, flora of, 180, 
183, 255. 
Transparency of water of Loch Ness, 17. 
Traquair, R. H., 449, 452. 
Traunsee, seiches in, 53. 
Traverse, Lake, 630. 
Trealaval, Loch, plankton of, 340, 345. 
Trieg, Loch, freezing of, 138. 
seiches in, 17, 31, 32, 34, 45, 53. 
Triassic rocks, distribution of, 453. 
unconformability at base of, 453. 
Trichoptera in Scottish lochs, 315. 
Trimmer, F., 558. 
Trincheras, River, 640. 
Trool, Loch, flora of, 218, 220, 224. 
Tropical lakes, 104, 105, 397-399. 
Truckee River, 558. 
Canon, 559. 
Trybora, F., 382. 
Tsad, Lake, 551. 
Tsana, Lake, 612. 
Tso-mavang, 539, 540. 
Tuirc, Loch an, plankton of, 344. 
Tula, River, 561. 
Tulare, Lake, 517, 638. 
Tung-ting, Lake, 603. 
Tunicata. 355, 356. 
Turbellaria, 318, 356, 364. 
Turfan depression, 538. 
Turka, River, 600. 
Turkwell, River, 620. 
Tuz Gol, 545. 
Tuzlah, Lake, 545. 
Twin Lakes, 634. 
Two Ocean Pond, 632. 
Typhaceoe, 178. 
Tysnos Island, remarkable temperature 
conditions in lake in, 580. 
Uanagan, Loch, fauna of, 313, 327. 
flora of, 189, 200. 
Ufini, River, 617. 
Ule, Willi, 11, 382, 384, 385, 389, 392. 
Ullswater, 575. 
Umbelliferffi, 172. 
Unconformability at Torridon base, 440. 
at Cambrian base, 441. 
at Lower Old Red Sandstone base, 448, 
at Middle Old Red Sandstone base, 
494. 
at Upper Old Red Sandstone base, 
449. 
at Triassic base, 453. 
at Cretaceous base, 455 . 
Ural, River, 530, 531. 
Urmi, Lake, 526, 542. 
composition of water of, 151. 
Urquhart Bay, flora of, 197, 199. 
Glen, 196, 199, 202, 203, 204. 
Usboi, River, 529. 
Utah Bay, 556. 
Lake, 556. 
Utriculariacefe, 357. 
Vaara, Loch, planktpn of, 344. 
Valencia, Lake, 640. 
A^alerianete, 173. 
Vallentin, R. , 2. 
A^alley, Loch, flora of, 223, 224, 
Valtos, Loch, plankton of, 339, 349. 
Van, Lake, 526, 543. 
composition of water of, 151. 
Vanhoft'en, — , 376, 377. 
Varese, Lake of, 590, 591. 
Variation of plankton, local, 414. 
seasonal, 282, 405. 
Vaucher, J. P. E., 30. 
Vegetation in Scottish lakes, 156-260. 
Velikaya, River, 584. 
Vener, Lake, 580. 
Venezuela, 640. 
Vennachar, Loch, Floridese in, 301. 
