INDEX. 219 



iitanic acidin clays 21 



Tita>nic oxide determination 48 



Trenton, New Jersey, potteries, clays shipped to 78 



Tripoli and Mineral Paint Oo„ Florence 112 



Troughing of kaolins 62 



Tullis, A. H., Oalhoun Co., clay of. ! ; 75 



Tuomey, Prof. M., quoted 71 



Tuscaloose, clays at and near 92, 93, 94, 96, 116, 202 



Tuscaloosa County clays 92, 93, 94, 96, 152, 153, 166, 169, 184, 187, 202 



Tuscaloosa formsttion, clays of. 81, 82, 117, 133, 160 



Ultimate analysis 50, 51, 52 



" of clays, see analyses of clays 



" of kaolins, see analyses of kaolins 



" " , uses of 51,52 



Underbeds to coal seams, clay 80 



United States Glological Survey, quoted 58 



Utilization of clays 114 



Utilization of clays for Portland cement 199 



Valley Head, DeKalb Co., clays near 133, 146, 148 



" kaolin near 61 



Valley Regions Reports, quoted 75, 76, 77, 80, 83, 110 



Vance Station, Tuscaloosa Oc, clay' near 94 



■' " " potteryat 80 



Vaugn's pottery, Elmore Co 88 



Vein clays 6, 70 



" kaolins : 7, 61 



Vernon. Lamar Co., clays near 98 



Vineton, Autauga Co., clays near 89, 90 



Viscosity of clays 30 



Viscous clays 30 



Vitrified bricks 80 



" '• , clays for 88 



" " .shales for 105 



Vitrified paving bricks in U. S. in 1897, valuation of. 1 



" ware, clay for 10 



Vitrification of clays 30 



Vogi, G., quoted ;.. 53 



Waldrop's, Fayette Co., clay...' 103 



Wallace's Mill, clay near 102 



Warping of clay in burning 27 



Warwhoop bauxite bank, Cherokee Co., clay in 76 



Washer bauxite bank, Cherokee Co., clay in 76 



Washing of kaolin 62 



Washington County flint clays 131, 158 



Water in clay 22, 45, 51 



Water (combined) detemiination 45 



" '• in clays 51 



Waterloo, Lauderdale Co., white silica from 112 



"Water Smoking'' '. 23 



Wedowee, Randolph Co., clay near 73 



