58 FLORIDA GEOLOGICAL SURVEY— 15 TH ANNUAL REPORT 
CONTENTS—Continued page 
Chapter 9: 
Sedimentary Kaolin . 216-241 
Terminology . 216-217 
Distribution . 217-219 
Description . 219 
Geologic Age. 221 
Origin . 221-226 
History and Development . 226 
Properties . 226-232 
Mineralogy . 232 
Uses.-.. 232-233 
Methods of Mining. 233-234 
Distribution by Counties . 234-241 
Alachua County. 234-235 
Citrus, Clay and DeSoto Counties. 235 
Hernando County. 235 
Highlands County . 235 
Lake County . 235-238 
Levy County. 238 
Marion County. 238 
Pasco County. 240 
Polk County. 240 
Putnam County. 240 
Suwannee County . 241 
Walton County. 241 
Chapter 10: 
Development and Possibilities of the Clay Industry in Florida. 242-250 
Early History . 242 
Recent History . 242-243 
Present Status . 243-245 
Present Tendencies . 245-249 
General Development and Expansion in Florida.... 245-246 
Sources of Structural Materials. 246-247 
Substitutes for Clay Products. 247-248 
Attitude of. Some Contractors and Builders toward Florida 
Products . 248 
Adaptibility of Florida Products. 248-249 
Reasons for Failure of Many Florida Ventures. 249 
Possibilities and Reserves . 249-250 
Chapter 11: 
Methods of Prospecting for Clays.:.. 251-253 
Appendix A. Statistics of Production of Brick.. ; . 254 
Appendix B. Fusion Points of Seger Cones. 255-257 
Appendix C.. Directory of Florida Clay Workers. 258 
Appendix D. Bibliography of Florida Clays. 259-260 
Index. 261 
