752 



INDEX. 



Pontotoc band, 620. 



Pope, Capt. John, on the Triassic, 399. 



Porphyries, Hi, 680, 700, 711. 



Port Hudson, Ixxxi. 



Potleg iron ore, 253. 



Potsdam flags, 565. 



greensand, 589. 



limestone, 565. 



sandstone, 564. 

 Potteries, 1. 



Pottery clays, 90, 110, 149, 197, 219, 245, 

 256, 288, 468. 



analyses, 198, 219, 257. 

 Powell, Major J. W., conference with, xviii. 



permission of to use map plates, xxiii. 



on geology of the high plateaus, 412, 425. 

 Pre-Carboniferous rocks, 556. 

 Presidio County, xliii, lxvii, xcii. 

 Presidio mine, lxviii. 

 Presidio Mining Company, lxviii. 

 Pruitt, S. H., 180. 

 Psilomelane, 601. 

 Publications, xxxiii. 

 Public Pen Creek, 616. 

 Public schools, co-operation with, xxxiii. 

 Puddingstone, lxxiii. 

 Putnam, c, 375. 



Mountain, 652. 

 Pyroligneous acid, 35, 36. 

 Pyrolusite, lxx, 601. 



a. 



Quanah, 459. 

 Quarry Station, liv. 

 Quartz — 



crystal, lxxi, 710. 



gold bearing, lxvii. 



miiky, 710. 



rose, lxxi. 



smoky, lxxi, 710. 

 Quartzites, liv. 



Quartzitic sandstone horizons, 731. 

 Quartz mounds, 598. 

 Quaternary, lxxxi, lxxxvii, 20, 27, 240, 304, 



308, 319. 

 Queen Anne prospect, xcii, 694. 

 Queen City, civ, 75, 77, 81. 

 Queen's Peak, 506. 

 Quicksilver ore, 713. 

 Quinn Mountains, 228, 261. 

 Quitman, 184. 



bed, 728. 



Mountains, xxi, lii, liii, lxv, lxvii, lxx, 

 xcii, xciii, 669, 673, 674, 678, 680. 



Pass, xcii. 



Valley, xxviii. 

 Quito, lv, 433, 463. 



Radiate fossils, 457. 



Ragsdale, G. H, xxv. 



Ragsdale Mountain, 20. 



Rainfall, 70, 479, 701. 



Ranger, 462. 



Rattlesnake Tanks, xci. 



Red beds, 21, 420, 422, 423, 424, 428, 429. | 



Red hematite, 231. 

 Red ochre, 231, 288. 

 Refractory materials, lxxiii, 654. 



asbestos, lxxv, 655. 



fire clays, lxxiv, 90, 112, 145, 197, 220, 

 537. 



graphite, lxxv. 



mica, lxxv. 



soapstone, lxxv, 654. 

 Reports — 



of chemist, cvi. 



on Cretaceous deposits, 714. 



on Central Mineral district, 356. 



of geologists, lxxxix. 



Comstock, T. B., xciv, 553. 

 Cummins, W. F., xcvjii, 359. 

 Durable, E. T.,xvii, 7, 56, 57, 303, 318. 

 Herndon, J. H., ciii, 204. 

 Kennedy, W., ciii, 65, 96, 115, 161, 



173. 

 Streeruwitz, W. H., xci, 665. 

 Taff, J. A., 714. 

 Walker, J. B., cii, 225, 244, 255, 268. 



on iron ore district of East Texas, 3. 



on Northwest Texas, 359. 



special, xxii. 



on Trans-Pecos Texas, 665. 

 Resignation of R. T. Hill, xxv. 



J. L. Jones, xxxiii. 



C. C. McCulloch, Jr., xxxiii. 



J. C. Nagle, xxii. 



R. S. Tarr, xxvii. 



P. S. Tilson, xxxi. 

 Retorts for charcoal, 35. 

 Reynolds, 464. 

 Richardson, D., 489. 

 Richland, 39. 

 Riddell, Dr. W. P., 1, 9. 

 Ridges, 67, 117, 118, 204, 225. 

 Riley Mountains, xxvii, lxi, lxv, lxx, 605, 615, 



616, 628, 650, 652. 

 Riley Mountain bands, 628. 

 Riley series, 564. 

 Ripley beds, 223. 

 Ripley division, 22. 

 Ripley group, 316. 

 Road materials, lxxv. 

 Roberts, Gov. 0. M., 274, 293. 

 Robertson, County, 1, li, lxxxiii. 

 Robinson Ed., 17. 

 Rock Creek, c. 

 Rockdale, xxxvii. 

 Rockland, liv, lxxxii. 

 Rock quarry, liv. 

 Rock salt, lxxvii. 

 Rocky Cedar Creek, 25. 

 Rocky Mountain, 221. 

 Roemer, Dr. Ferdinand, co-operation of, xxx. 



acknowledgments to, lxxxviii. 



on Spanish silver mines, 599. 

 Roessler, A. R., tin reported by, 595. 

 Rose gypsum, 457. 

 Rose quartz, lxxi. 

 Rosillas Mountains, 670, 671. 

 Round Mountain, xxvii, 189, 583. 

 Runnels County, 465. 



