398 



INDEX 



history, 206-210; foreign, 210; 



climate, 211; economic products, 



212; life of, 212-218. 

 Tribes Hill formation, 78. 

 Triceratops, 262-263, 268-270. 

 Trilobites, 57, 75-76, 99-101, 115, 



117-118, 136-137, 157, 175, 191. 

 Trinity, formation, 237, 242, 276; 



time, 244. 

 Trinucleus, 101. 

 Trochoceras, 97-99. 

 Trocholites, 97-99. 

 Troost, 114. 

 Troostocrinus, 114. 

 Tully formation, 120, 124. 

 Turkestan, 225. 

 Turonian formation, 237. 

 Turtles, 216, 234, 273. 

 Tuscaloosa formation, 237, 241. 



Uinta formation, 282, 287. 



Uinta Mountains, 82. 



Uintatherium, 318. 



Ulrich, E. O., 18, 65, 154. 



Ulsterian series, 120, 122; time, 

 128. 



Unconformities, significance of, 27; 

 Archean-Algonkian, 47; base of 

 Cambrian, 61. 



Underground water, 256. 



United States, Physiographic prov- 

 inces of, 382. 



Unkar group, 51. 



Upper Carboniferous period (see 

 Pennsylvanian) . 



Ural Mountains, 305, 306. 



Utah, 181-183, 266, 287, 304, 366. 



Utica formation, 78, 82. 



Valley trains, 338. 



Van Hise and Leith, 41, 48, 51. 



Vanuxem, L., 96. 



Vaqueros formation, 282. 



Vaughn, T. W., 229, 230, 259. 



Veatch, A. C, 316. 



Vermes, 13, 18. 



Vermont, 59, 69. 



Verrill and Smith, 18. 



Vertebrates, 13, 21, 100, 119, 136, 



157, 177-179, 191-193. 

 Vicksburg formation, 282, 287. 

 Vinci, Leonardo da, 6. 

 Virginia, 86, 110, 145, 153, 164, 187, 



203, 212, 213, 251, 256, 312, 371. 

 Voltzia, 213. 



Waagenoceras, 99, 191. 



Waccamaw formation, 282, 286, 291. 



Walcott, C. D., 53, 54, 61, 65, 71, 



73, 74, 76. 

 Wales, 56, 67, 68, 69, 103. 

 Ward, L., 228. 



Wasatch formation, 282, 287. 

 Wasatch Mountains, 82, 181, 183, 



220, 301. 

 Washington, 223, 289, 303. 

 Washita formation, 237, 242, 276; 



time, 246. 

 Wasps, 232. 

 Waterlime, 112. 

 Waucobian series, 57. 

 Well records, diagram, 60. 

 West Virginia, 132, 147, 153, 169, 181. 

 Whales, evolution of, 325-326. 

 White, D., 161, 168, 171. 

 White Mountains, 86, 87, 250, 332, 



372. 

 White River formation, 282, 287-288. 

 Wichita Mountains, 82, 86. 

 Wichita series, 180. 

 Wilcox formation, 282. 

 Willis, Bailey, 30, 33, 44, 58, 64, 66, 



68, 85, 105, 109, 123, 127, 145, 146, 



149, 159, 165, 184, 202, 207, 222, 



238, 239, 245, 247, 283, 285, 293, 



295. 

 Willis and Salisbury, 33. 

 Wilhston, S. W., 173, 178-179. 

 Wind River formation, 282, 287. 

 Wisconsin, 55, 90, 105-107, 110, 115, 



128, 334, 339, 340. 

 Wissler, C, 374, 379-380. 

 Woodbine, formation, 237, 242; time, 



246. 

 Woods, 34. 

 Woodward, 138, 139, 378. 



