INDEX 



977 



Upper Barren Coal Measures, 621 



Cambrian, 478 



Carboniferous, see Pennsylvania!! 



Oolite, 709 



Productive Coal Measures, 621 



Silurian fauna, 556 

 Uralite, 26 

 Utica shales, 509 



Vaginalina legumen, 795 



Valley train, profile of, 272 



Valley trains, 871 



Valleys, growth of, 121 



Van Hise, C. R., 199, 366, 408, 412, 



443, 466 



Vanuxemia dixonensis, 527 

 Vaqueros formation, 808, 809 

 Varieties of coal, 637 

 Vaughan, T. W., 731, 746, 795 

 Veatch, A. C., 750 

 Veins, 40, 203 

 Velocity and transportation, 178 



of streams, 144 



Venaricardia marylandica, 796 

 Venus ducatelli, 825 

 Vermes, Cambrian, 499 



Ordovician, 533 

 Vermilion iron ore, 459 

 Vertebrates, origin of, 590 

 Vesuvius, 15 



Viburnum inaequilaterale, 760 

 Vicksburg formation, 797, 804 

 Viscous motion of ice, 282 

 Vitulina pustulosa, 585 

 Viviparus montanensis, 739 

 Volcanic action, early, 434 

 Volcanic activity in Cretaceous, 

 South America, 758 



of Pliocene, 839 

 Volcanic ash, 328, 378, 383 



bombs, 386 



cones, 370 



dust, 21, 89 



gases, 385, 386 



glass, 328, 379 



rocks, 367 (see igneous rocks) 



rocks, gases in. 387 



stage of earth's history, 433 

 Volcanoes, 15, 371 



distribution of, 372 



number of, 372 



products of, 377 



relations of, 376 

 Voltzia, 670 



heterophylla, 671 



Vugs, 44 

 Vulcanism, 2, 295 



cause of, 388 



initiation of under planetesimal 

 hypothesis, 433 



Waagenoceras cumminsi, 675 



Walchia piniformis, 670 



Walcott, C. D., 474, 476, 482, 568, 662 



Wallace, A. R., 748 



Walled lakes, 224 



Wandering pole, hypothesis of, 898 



Ward, L. F., 719, 732 



Warm temperature in high latitudes, 



521 



Warping, effect on drainage, 177 

 Warsaw shale, 597 

 Wasatch stage of Eocene, 777 

 Washington, H. S., 59 

 Wasatch Mountains, 472 

 Washita series, 731 

 Water-gaps, 158, 173 

 Water table, 117, 196 

 Waterlime, 87, 543 



fauna, 557 



Wave-built terrace, 314 

 Wave-cut terrace, 306 

 Wave-erosion, topographic features 



developed by, 303 

 Wave-motion, 297 

 Waverly fauna, 611 



series, 598 

 Waves, 296, 297 



deposition by, 309 



depth of, 298 



erosion by, 299, 302, 306 



work of, 299 



Weathering, 109, 140, 206 

 Weber formation, 629 

 Wedge-work of ice, 103, 223 

 Weed, W. H., 205, 216, 568 

 Weller, S., 509, 563, 568, 587, 742 

 Western Interior coal-field, 626 

 Wewe slate, 460 

 White, C. A., 727, 734, 749 

 White, D., 593, 619, 638, 671 

 White, I. C., 572, 637, 643, 671 

 White Jura, 709 

 White River beds, 812 



formation, 797 

 Whiteaves, J. F., 569 

 Whitfield, J. E., 213 

 Whitney, J. D., 707, 811, 814, 930 

 Wichita formation, 661 

 Wild, J. J., 289 



