INDEX. 



409 



Torbert, 228. 

 Tornillo, 235. 



Creek, 234. 

 Tow Valley, 246. 

 Tourmaline, 226, 259, 390, 363. 

 Town Mountain, 284, 285. 

 Toyah, lxxiii. 



Creek, 233. 

 Trans-Pecos Texas, Geology of, 219. 



topography of, 232. 

 Travertine 390. 



Travis County," liv, 117, 118, 121, 122, 126, 

 129. 



Peak sands, 118. 



Postoffice, 118, 120. 

 Tremolite, 390. 

 Trenton division, 302. 



series, 253, 301. 

 Trickham, 151, 152, 159, 160, 161, 168, 111, 



207, 210, 215, 216. 

 Trilobites, 246, 247. 

 Trinity, xxxv. 

 Trinity division, 118. 



formation, 250. 



River, 9, 11. 



sands, lii, 118. 

 Tufa, 390. 

 Turgite, 390. 

 Turritella carinata, 43. 

 Tyler, 71. 



u. 



Unconformity, 202, 203. 

 Unio dockumensis, 190. 

 United States Government Survey, xviii, 



xxii, 5. 

 United States, tenth census, 6. 

 University of Texas, xviii, xxvii. 

 Upland gravel, 59. 



soils, 37. 

 Uplifts, Cretaceous, 315. 



Post-Paleozoic, 311. 

 Upper Carboniferous, 203. 



Cretaceous, xlv, 107. 



Cross Timbers, 118. 



division Black Prairie system, 316. 

 Comanche series, 126. 

 Uppermost Cretaceous beds, 116. 

 Upper Silurian series, 116. 

 Upshur County, xxvi 

 Uralite, 390. 

 Uralorthite, 390. 

 Uranium, 221, 223, 226. 

 Uses of lignite, 97. 



V. 



Valentine, 228, 232. 



Valley Spring, 262, 271, 287, 350, 351. 



Value of lignite, 97. 



Value of Texas ore, 223, 224. 



Van Horn, lxiv, lxxiii, 228, 232. 



Mountains, 225, 232. 

 Van Zandt County, xxvi, 19, 23, 35, 72, 101. 



Grand Saline, 35. 



gray sandy clay, 35. 



shell limestone section, 20. 



Variable dip, causes of, 16. 

 Vermiculite, 391. 

 Vesuvianite, 391. 

 Vicksburg strata, 18. 

 Volcanic disturbance, 113, 125. 

 Von Streeruwitz, W., 119. 



w. 



Waco, xlvii. xxvi, 20, 25, 106, 109, 111, 112, 



117,119, 126, 161, 171. 

 Wad, 226, 346, 390. 

 Wakefield magnetite tract, 351. 



Mr., 351. 

 Walcott, C. D., 248, 149, 250, 252, 253, 255, 

 264, 267, 276, 277, 278, 279, 280, 287, 

 289, 294, 308, 313, 368. 

 Waldrip, 152, 153, 159, 160, 169, 171, 173, 

 174, 208, 213, 214. 



Cisco series, lxvii. 



coal division, 207. 



coal analyses, 215. 

 Walker Creek, 87. 



J. B., xxviii. 

 Waller, E., 172. 

 Washington County, 7. 

 Washita division, 1, 126. 



limestone, 128. 



section of, 127. 

 Water, 170, 193. 



artesian, 138, 170. 



conditions, Cretaceous era, 138. 



mineral, 171, 173. 



power, 174. 



Trans-Pecos region, 230, 234. 



supply, East Texas, 11. 

 Waxahachie, 109, 112. 

 Weatherford, 117. 

 Webb Bluff section, 41. 

 Webb County fossils, 38, 41, 44. 

 Webberville, 20, 28, 105, 107, 115. 

 Webster Creek, 299. 

 Wells, 34, 193, 227, 228. 



Elkhart, 34. 

 Western magnetite belt, lx, 352. 

 White Cliff, 113. 



White, Dr. C. A., xlix, 43, 125, 186, 188, 189. 

 White, J. T., 161, 168, 174. 

 White Marl Bluff, 30. 

 White Oak Creek, 81. 

 White River, 190. 

 White Rock, 112. 

 White sandstone, 88. 



origin of, 88. 

 Whitesboro, 109, 110, 117. 

 Wichita beds, lxix, 187. 



County, 192. 



Falls, xxvi, 194. 



Mountains, 257, 319. 

 Wilcox, O. W., lxxxix. 

 Wilkins, 35. 

 Williams, H. S., 250. 

 Williamson County, 117, 126, 129. 



shaft, 152, 160. 

 Willow City, 364. 

 Willow Creek, 350, 375. 

 Wills Point, 19, 20, 35. 



