A PRELIMINARY REPORT ON CLAYS OF FLORIDA 263

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Gabbro, 65 Ilmenite, 17, (76), 84
Gadsden County, 63, 111, 114, 158-164 Indianaite, 69, 72 Gamble & Stockton Co., 135-137 Insulators, 106
 International Kaolin Co., 226
Garnet, 77, 81, 82 Iron in clay, 81, 82, 140, 142
Georgia, white clays of, 216, 224, 226 Iron carbonate, 74 Geography of central and southern Flor- Iron dioxide, 64, (74), 78, 79, 81
 ida, 8 Iron sulphate, 87
Gill, A. C., on origin of kaolin, 224 Iron sulphide, 74 Glacial clay, 68, 70
Glasenapp, M., 77 Jackson County, 111, 172-173
Glauconite, 76, 81 Jacksonville formation, 109
Glendale Brick Works, 212 Jardinieres, jars, 243, 244
Gonzalez, Mrs. S. J., 242 Jefferson County, 112, 173-174
Goss, J. J., 201 Jennings, Bryan, 130
Graack & Sons Pottery, 15, 103, 183, 244 Johnson, L. C., work of, 14 Green Cove Springs, 128, 131 Johnson, S. W., work of, 72
Greensand, 76, 83 K
Greer, E. E., 238 Kaolin, 14, 15, 63, 104, 117, 216, 219, 226,
Griffin, 84 231, 232, 244, 258, 260
Grimsley, G. P., 69 Kaolinite, 64, 71, 72, 73, 78-81
Grout, F. F., 69, 70 Kennedy, T. S., 63
Guilford, Bros., Brick Co., 126-128 Key, A. J., 161 Gull Point, 142-146, 148 Keystone Brick Co., 176
Gumbo clay, 106 Kissimmee, 35, 192
Gunter, Herman, 65, 235, 259, 260 Kleis, R. F., 237, 238
Gypsum, 75, 82 Klocker, J. H., 240
 Kohler pottery or ware, 143, 244 H L
Hall, A. A., 259 Lacustrine clay, 68, 70, 110
Hall Brick Co., 214, 215 Ladd, G. E., 69, 76
Halloysite, 72 Lafayette formation, 116
Hamilton County, 111, 164-165 Lake County, 14-16, 63, 114, 174, 235-238
Hardee County, 165-166 Lake County Clay Co., 15, 226, 235, 236,
 Harde Conty,165-66 39
Harper, R. M., (8), 18, 106, 196 Lake region, 189, 217
Hematite in clay, 74, 81 Lakes, 110
Henry, A. M., 185 Lampson, Jas., 240
Hernando County, (112), 166-170, 217, Langenbeck, Carl (Karl), 232, 259
 235 Larsen, E. S., 72
Hickling, G., 72 Leaching, 66
Highlands County, 170, 235 Lean clay, 89, 100
Highlands Farms, 195 Leighton, H., 259
Hilgard E. W., 65 Leon County, 113, 114, 177-180
 Levy County, 111, 180-181, 217, 238 Hill, R. T., 259 Liberty County, 181
Hillebrand, W. F., 80 Lime, 17, 65, 75, 78-80, 82, 83, 134
Hillsborough County, (112), 114, 170-172 Limestone, 8, 17, 67, 69, (82) Hollow blocks, 171, 214, 243 Limonite, 74, 81, 140, 142, 154
Holmes County, 111, 172 Link, J. H., 181
Hornblende, 77, 80, 81, 83 Live Oak, 241
Hydraulic removal of kaolin overburden, Lloyd, George T., 131, 132
 233, 234- Lloyd, Strauss L., 5
Hydromica, 73, 78, 80 Lyle, W. H., 207