396 



INDEX. 



Circular No. 2, xvii. 



Claiborne fossils, Bombshell Bluff:, 30. 



Smithville, 30. 



Moseley's Ferry, 18. 



White Marl Bluff, 18. 

 Clarksville, 108. 

 Classification of iron ores, 66. 



Post-Tertiary deposits, 58. 



Pre- Paleozoic igneous rocks, 281. 



strata, 132, 133. 

 Clay ironstone, xxxvii, 28, 76, 80, 84, 383. 



analysis of, 80, 84. 



Bastrop County, 28. 

 Clays, Basal, xli, 19. 



general description, 19. 



timber belt beds, 22. 

 Clays, Bastrop County, 28. 



coast, xxxii, 63. 



companies working, 90. 



Eagle Ford, 111. 



Exogyra arietina, 128. 



of East Texas, 89. 



output of ware, 90. 



Palm Bluff, 54. 



Sulphur Bluff, 54. 



White Marl Bluff, 30. 



Van Zandt County, 35. 

 Claystone, 86. 

 Clear Creek, 151, 336, 362, 364, 365, 369, 



315. 

 Clear Fork beds, lxix, 188. 

 Clerk, lxxiv. 

 Click series, 276. 



Climatic conditions, Rio Grande region, 39. 

 Coal fields of Colorado River, 201. 

 Coal fields, southern border of Central, 145. 



Milburn series, lxvi, 212. 



mine, Finks, 153, 160, 208, 214. 

 section at, 153, 209. 

 San Tomas, 96. 

 section of, 43. 



Waldrip division, 213. 

 Coast clays, xxxii, 63. 



soils, 64. 

 Coast prairies, 7. 



timber of, 7. 

 Cold Creek, 291, 293, 295, 302, 307, 308, 321, 



348, 372. 

 Coleman, 210. 



Albany series, lxvii. 



County, 45, 163, 171, 173, 201, 208, 210. 



division, 210. 



series section, 210. 

 Collin County, 111. 

 Collins, Mountain, 68. 

 Colorado City, 195. 

 Colorado River. 



Bastrop and Travis Counties, 29, 30. 



coal fields, 201. 



fall in, 174. 



section, 28. 

 Columbite, 260, 383. 

 Comal County, 117. 

 Comanche, 117. 



County, 122, 125, 185. 



Creek, 277, 334, 339, 370. 



Comanche Mountains, 233. 



Peak, 123, 126. 

 chalk, 123. 



series, 116, 185. 

 Trinity, 118. 

 Fredericksburg, 120. 

 Washita, 126. 

 Common dolomites, 371. 

 Compressed granite, 366. 

 Comstock, Theo. B., xviii, xxiv, xxv, xxvi, 

 xxvii, lxxiv, lxxxix, 282, 342. 



Administrative Report, lxxxviii. 



Preliminary Report Central Mineral Re- 

 gion, 239. 

 Concho County, lxix, 145, 169, 239, 301. 



River, 146, 155, 169, 175, 177, 178. 

 Conclin, G-eo., 240. 



Conclusions, Trans-Pecos Texas, 231. 

 Concretionary hematites, 355. 

 Conglomerate, 156. 



composition, 81. 



ores, 81. 



distribution, 81. 

 origin, 81, 82. 



Quaternary, 29, 60. 



Rochelle bed, 205. 

 Conrad, T. A, 5, 38. 

 Contents, vii. 

 Cook's Mountain, 34, 87. 

 Cope, E. L\, 6, 186, 188, 189. 

 Cooper, 108. 

 Copper, lix, 196, 221, 223, 224, 226, 260, 334. 



analyses of, 342, 343. 



glanz, 224. 

 Corazones Mountains, 225, 232, 233, 234. 

 Cornudas Mountains, 222. 

 Corpus Christi, xxxiii. 

 Correlation, difficulty of, 17, 18. 

 Corsicana, 108, 115. 

 CoryeU County, 126. 

 Cottonwood Springs, 285. 

 Coutelona, 235. 

 Cow Creek, 119, 120. 

 Cow G-ap, 146, 154. 

 Crab Apple Creek, 318. 

 Cretaceous areas briefly defined, 106. 



economic features of, 137. 



island, 14, 33, 91. 



Lower, 116. 



Cretaceous of West Texas, 220, 221. 



rocks of Texas and their economic value, 

 103. 



system, xliv, 145. 



tabular review of, 135. 



uplift, 315. 



Upper, xlv. 

 Crockett, shell bed east of, 34. 

 Cross Timbers, Lower, xlviii, 110. 



Upper, 118. 

 Crowned Peaks, 259. 



Cummins, W. F., xvii, xxiv, xxv, lxxiv, 309, 

 310, 311, 312, 316, 319, 320, 322. 



Administrative Report, lxxxii. 



Southern Border Central Coal Fields, 145. 



Permian beds, 183. 



Mountain, 322. 



