408 



INDEX. 



Stinkstone, 188. 



St. Jago Mountain, 223, 225, 232, 233, 234. 



St. Jo, 117. 



Stone, building, liii, lxviii, 86, 89, 122, 123, 



126, 127, 139, 162, 194, 364. 

 Stone, J. S., xxvii, lxxiv. 

 Stonewall County, xxv, lxxi, lxxxv, lxxxvi, 



lxxxviii, 185, 195, 196. 

 Straparollus, 244. 



sanctisabse, 305. 

 Strata, classification of, IT. 



disturbances of, 113, 125. 



Guererro, 45. 



indurated, 39, 42, 43, 49, 88, 89. 



proofs of littoral character, 15. 



thickness of, 16, 17. 



Vicksburg, 18. 

 Stratigraphic Geology, 254. 

 Stratigraphy, 13. 



Black Prairie region, 109. 



Comanche series, 131. 



Penrose report, 13. 

 Strawn, lxvi. 



Streeruwitz, ~W. Yon, xvii, xxiv, xxv, lxxiv, 

 219, 254, 269, 337. 



Administrative Report, lxxix. 



Report of, 219. 

 Stroma tocerium, 297. 



rugosum, 302. 

 Stromatopora, 304. 



concentrica, 202. 

 Stromyrite, 226. 

 Strontianite, 123, 162. 

 Structural material, liii, lxviii, 86, 89, 122, 123, 



126, 127, 139, 162, 194, 364. 

 Sub-Carboniferous, 202, 212, 216. 

 Sulphur, 42, 43, 46, 48, 52, 53, 55, 99, 100, 

 122, 226. 



Bluff, 54. 



Colorado River section, 52, 53. 



Payette beds, 148. 



Porks furnace, 65, 79. 



spring on Colorado, 150, 158, 165, 173. 

 Survey, soil, 137. 



Geological, of Texas, 243, 244, 245, 246, 

 247, 248. 



Mexican Boundary, 5. 



United States Government, 5. 

 Sycamore Creek, 118. 

 Synocladia biserialis, 148. 

 System, Algonkian, 276. 



Burnetan, lv, 255. 



Cambrian, lx, 283. 



Carboniferous, lxiii, 145, 201. 



Cretaceous, 103. 



Devonian, lxiii, 310. 



Pernandan, lvi, 267. 



Laurentian, 255. 



Niagaran, 309. 



Ontarian, 267. 



Permian, lxix. 



Silurian, lxii, 293, 309. 



Texan, lvii, 276. 



T. 



Table of Contents, vii. 



Table land, old, Rio Grande region, 39. 



Tabletop Mountain, 196. 



Tabular Review Cretaceous System, 132, 133. 



Taff, A. G., xxvi, lxxxv. 



Taff, J. A., lxxiv, lxxxvi, 121, 131. 



Tait, J. L., lxxiv. 



Talc, 226, 259, 389. 



Taonurus cauda-galli, 311. 



Tarlinga Creek, 234. 



Tarr, R. S.,xxiv, xxvi, lxxiv, 310, 311, 312, 316. 



Tarr, R. S., Report, 201. 



Taxonomy, 263, 274, 280, 292, 305, 306. 



Taylor, 106, 108, 119. 



Taylor Mountain, 68. 



Temperature, 180. 



Temple, 108. 



Tengerite, 259, 390. 



Terebratula wacoensis, 128. 



Tenth Census United States, 6. 



TerreU, 108. 



Terrell, W. M., 213. 



Tertiary, xxxiii. 



Tertiary strata, general description, 7. 



Tetrahedrite, 226, 333, 335, 336, 390. 



Texan system, lvii, 276, 277, 278, 279, 280, 



281, 282, 283, 287, 292. 

 Texas Copper Mining Company, 186. 

 Texas, Geology of Trans-Pecos, 219. 

 Texas, Geological Survey of, 243, 244, 245, 



246, 247, 248. 

 Thames, carbonate of lime in, 23. 

 Thickness of strata, 17, 109, 111, 115, 119, 



121, 124, 127, 186, 190, 206, 207. 

 Thinning of ore, 67, 79 

 Thorogummite, 259, 390. 

 Thrifty, 207. 



Throckmorton County, xxv, lxix. 

 Throckmorton, Governor, 244. 

 Tilson, P. S., xviii, xxvii, lxxiv, 37. 

 Timber, 8, 9, 10, 11, 39, 40, 181, 195, 234. 



Coast Prairies, 8. 



creek, 110. 



of Rio Grande region, 39, 40. 



region, physical characters of, 8. 

 timber of, 9. 

 Timber Belt beds, xxxvi, 22. 



cause of mottled beds, 25. 

 composition of, 22. 

 soils, 36. 



source of carbonate of lime, 23. 

 Timbers, Lower Cross, xlviii, 110. 



Upper Cross, 118. 

 Tin, 221, 226, 345. 

 Titles, 230. 



Tom Green County, 145, 163, 169, 185. 

 Topographers, lxxiv. 

 Topography of Central Mineral District, xxv. 



of Texas, xxi. 



of iron region, 67. 



of Trans-Pecos Texas, xxiv, 232. 



Penrose's Report, 7. 



