Syenite, 274 Synclinal fold, 204 Syracuse, N.Y., 436 Syringopora, 339 Tabulæ, 339 Taconic deformation, 329 Taconic Mountains, 376 Talc, 284 Talc schist, 284 Talus, 23 Tapir, 409 Teleost fishes, 349, 382, 405 Tennessee, 90, 373 Terminal moraines, 126, 422, 432 Terraces, 86, 96 Tertiary period, 395 Texas, 15, 69, 71, 166, 336, 356, 357, 371, 373, 374, 378 Theromorphs, 383 Throw, 217 Thrust faults, 217 Till, 418 Till plains, 420 Toronto, 443 Trachyte, 249, 258 Travertine, 52 Trenton series, 327 Triassic period, 369 Triceratops, 387 Trilobites, 322, 332, 339, 363, 367 Tuff, 255 Turkestan, 103 Turtles, 384 Unconformity, 227 Undertow, 174 Utah, 107, 271, 360, 371, 396, 399 Utica series, 327 V-Valleys, 74 Valley drift, 128 Valley trains, 425 Valleys, 66 Vermont, 309, 329, 420 Vernagt glacier, 129 Vertebrates, 334, 349 Vesuvius, 247, 259, 402 Virginia, 48, 84, 106, 370, 403, 442 Volcanic ashes, 244, 255 cones, 257 necks, 267 rocks, 249 Volcanoes, 238 causes of, 278 decadent, 260 submarine, 248 tertiary, 399 Walrus, 414 Warped valleys, 101 Warping, 198 Wasatch Mountains, 375 Washington, 18, 91, 150, 400 Waterfalls, 59, 78 Waves, 156 Weathering, 5 chemical, 10 differential, 29 mechanical, 13 Wells, 41 artesian, 44 West Virginia, 79, 357, 359 White Mountains, 443 Wind, 144 deposition, 147 erosion, 151 pebbles carved by, 152 transportation, 145 Wisconsin, 15, 18, 70, 71, 90, 94, 422, 426 Wisconsin formation, 429, 431 Wyoming, 50, 98, 371 Yahtse River, 131 Yellow Sea, 151, 170 Yellowstone canyon, 74 Yellowstone National Park, 50, 51, 52, 260, 261, 263, 269, 400 Yosemite, 403 Zeuglodon, 414 Zone of cementation, 49, 180 Zone of solution, 45 Zones of flow and of fracture, 207 * * * * * ANNOUNCEMENTS ================================================================= TEXT BOOKS ON SCIENCE FOR HIGHER SCHOOLS AND COLLEGES _List _Mailing price_ price_