INDEX. 



407 



Series, Waldrip-Cisco, lxvii. 

 Serpentine, 226, 259, 389. 

 Seymour, 194. 

 Shatter silver mills, 234. 

 Shaft, Gibson, 152. 



Williamson, 152. 

 Shaler, N. S., 10. 



Shales, Carbonaceous, 160, 161, 206. 

 Eagle Ford, 111. 

 Milburn, 205. 

 Shape of ore-bed, 66, 76, 81. 

 Sharp Mountain, 284, 285, 286. 

 Shell-bearing strata, G-uererro, 45. 

 Shell bed east of Crockett, 34. 

 Bluff, Burleson County, 27. 

 limestone section, Van Zandt County, 

 19, 20. 

 Shells, 19, 20, 21, 27, 33, 34, 40, 41, 45, 46, 

 64, 73, 93. 

 G-nathodon, 64. 

 Sherman, 108, 109, 112, 113. 

 Shields, L. L., 160, 161. 

 Shinbone Ridge, 314. 

 Shoal Creek, 111, 128, 129. 



limestone, 129. 

 Shumard, B. F., xxii, 5, 121, 127, 130, 240, 

 243, 244, 247, 251, 252, 253, 296, 310, 

 319, 320, 321, 323, 325. 

 Siderite, 226, 342. 



Sierra Blanca Mountains, li, lii, liii, 219, 220, 

 223, 232, 234. 

 Peak, 222. 



Station, li, lii, 221, 228. 

 Sierra Diabolo Mountains, 221, 222, 223, 224, 



232, 234. 

 Sierra St. Jago, 223. 

 Silicates, 375. 



Silicified wood, 24, 26, 50, 55, 90, 157. 

 Milam County, 26. 

 Sulphur Bluff, 55. 

 Silver, lix, 221, 223, 225, 234, 260, 332, 389. 

 analyses of, ores, 342, 343, 344. 

 Mine Creek, 331, 378. 

 Hollow, 340, 368. 

 San Saba River, 241. 

 Moon mine, 209, 210, 213, 214. 

 Silt, Brazos River, 62. 



cause of differences, 60, 61. 

 Colorado River, 61. 

 Rio Grande, 62. 

 river, 60. 

 Silurian system, lxii, 293. 

 Simpson Creek, 150. 

 Slater, D. B., 209. 

 Slates, 372. 



Slaughter Mountain, 315. 

 Sloan, Mr., 177. 

 Smith County, 71, 101. 

 Smith, M. M., xxvii, lxxiv. 

 Smithville, 30. 



Claiborne fossils, 30. 

 Smith wick Mills, 105. 

 Smith, fm, 81. 

 Smoothing Iron Mountain, 285, 286, 293, 



372, 374, 375. 

 Soapstone, 390, 374. 



Soils, 166, 191, 226. 



agricultural, 137, 166, 191. 



analyses of, 37. 



Basal clays, 21. 



Blanco Canyon, 192. 



Brady Creek, 169. 



Cherokee, 167. 



chocolate, 36. 



Coast clays, 64. 



Colorado River, 167. 



Concho River, 169. 



Fayette beds, 58. 



grey sandy, 37. 



Home Creek, 169. 



Lampasas River, 166. 



Lipan Flat, 169. 



lowlands, 36, 37. 



Lynch' s Creek, 167. 



mulatto, 37. 



Permian, 191. 



Putnam, 169. 



red clayey, 36. 



red sandy, 36. 



Richland Creek, 168. 



river bottom, 36 



San Saba River, 168. 



Santa Anna, 168. 



survey, 137. 



Timber Belt, xxxviii, 36. 



Trickham, 168. 



upland, 34. 



upland, Lampasas County, 167. 



Waldrip, 169. 

 South Concho River, 177. 

 Southern border of Central Coal Field, 145. 

 Southern Coal Field, 145. 

 Spence, D. "W., lxxiv, lxxxix. 



Harry, lxxxix. 

 Sphalerite, 226. 

 Spiller mine, lix, 345, 346. 

 Spirifer cameratus, 147, 148, 152. 

 Spiriferina kentuckensis, 148. 

 Spirophyton, 250. 

 Spofford Junction, 112. 

 Sponge Mountain, 291, 302. 

 Spongy chert, 304. 

 Spongy quartz, 304. 

 Spring, Cherokee, 176. 



Creek, 169, 177, 246, 285, 357, 365, 369. 

 Springdale, 35, 78. 



Spring, ferruginous or chalybeate, 98. 

 Spring, Fleming, 165, 175, 176. 



Hancock, 172. 



Hanna, 172. 



Hubbard, 176. 



Lampasas, 172, 174, 175. 



Richland, 168, 170, 175, 177. 



Salt, 175. 



San Saba, 176. 



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

 Staked Plains, xxvi, xxix, 177, 185, 189, 195. 

 Stalactites, 158. 

 Stanley Mountain, 234. 

 Steatite, 389. 

 Stiff, Col. E., 240. 

 Stilpnomelane, 226. 



