A PRELIMINARY REPORT ON CLAYS OF FLORIDA 261 INDEX This index does not include the names of persons and corporations mentioned in the financial statement on pages 9-13, the mineral producers on pages 15-23, the fossils in Mr. Mansfield's paper, or the counties in which no clay deposits of importance were found. All the fossils are listed by families and horizons in the folded table inserted between pages 28 and 29, and the counties are discussed in alphabetical order on pages 120-215. (See table of contents.) Names of places near which fossils or clay deposits were found are not indexed as a rule, for such references tell nothing about the places themselves. But such localities are indexed under the respective counties. Numbers in parentheses indicate indirect references. A Blake, J. M., 72 Abandoned brick plants, 112, 129, 130, Bonding power of clay, 99, 103 137, 156, 157, 171, 177, 187, 188, Bone Valley formation, 115, 194 196-199, 210, 249 Bottles, clay, 106 Absorption tests of clay, 101-102 Boulder clay, 68 Adams, T. C., chart by, 63, 98 Bradford County, 125 Adobe, 106 Brevard County, 28 (41), 125 Aeolian clay, 68 (70) Brick, production of, 15, 61, 71, 105, 106, Age of kaolin deposits, 221 242, 243, 248-249, 254, 258 Alachua clay, 109, 115, 260 Brown, Herman, brick maker, 198, 209 Alachua County, 110, 111, 113, 114, 122, Buckley, E. R., work of, 69 234 Buckman, H. 0., 67 Alkalies in clay, 83 Buckman & Pritchard, 17 Allentown Consolidated School, 201-204, Bureau of Census, U. S., cooperation 212 with, 14 Allophane, 72 Bureau of Mines, kaolin tested by, 230 Altoona, kaolin near, 238 Burney, C. W., 178 Alum Bluff formation, 108-109, 113, 114, 160, 170, 217 C Alumina, aluminum,-in clays, 76, 78, 79, 81 Calcareous clay, 68, 70, 83, 181 Ammonia in clay, 83 Calcite, 75, 82 Analyses of clay, 79, 180, 185 Calcium carbonate, 64, 67, 75, 82, 252 Analyses of kaolin, 231, 232 Calcium sulphate, 75 (see Gypsum) Annutalaga Hammock, 169, 170 Calhoun County, 125, 128 Appropriations for Geological Survey, 5 Callahan Brick Company, 188 Caloosahatchee formation, 115 B Campville Brick Company, (15), 121-123 Baker County, 124-125 Carbon dioxide, 67, 74, 78, 80, 82 Ball clay, 14, 15, 70, 104, 226 Cement, 71, 85, 106 Bartow clay, 115, 135, 194, 195 Chamberlain, r. P., 171, 172 Barrineau Bros., 141, 142, 145, 152, 154, Charton formation, 115 155 Chattahoochee formation, 108, 111-112, Bastin, E. S., 98 158, 159 Bath brick, 106 Chemical analyses of clay, 79, 180, 185, Battery cups, 106 231, 232 Baumeister, S. J., 154 Chemical deposits, 70 Bayley, W. S., work of, 259 China clay, 69, 70 Bell, Olin G., 3, 5, 53 Chlorite, 76, 83 Berry, E. W., work of, 116 Choctawhatchee formation, 109, 114-115 Beer, S. W., work of, 69 Cimolite, 72 Bibliography of Florida clays, 259-260 Citronelle formation, 115-116, 139, 140, Biddle, Perry L., 213 201, 203 Billups, G. P., clay of, 213, 241 Citrus County, 128, 217, 235 Biotite, 83 Clapp, F. G., 28, 29 Black, Hugh, 179 Clarke, F. 1W., work of, 73