56 FLORIDA GEOLOGICAL SURVEY-I5THI ANNUAL REPORT


 CONTENTS-CONTINUED PAGE
 Chemical Effect of Various Constituents in Clays (Continued).'
 Titanium................................................. 84
 Water .................................................... 84
 Organic Matter............................................ 85
 Sulphur................................................. 85-86
 Soluble Salts ............................................. 86-88
 CHAPTER 4:
 Physical Properties of Clays ....................................... 89-99
 Plasticity.................................................... 89-90
 Color........................................................ 90
 Texture...................................................... 91
 Slaking ...................................................... .91
 Shrinkage................................................... 91-93
 Fusibility................................................... 93-97
 Porosity .................................................... 97-99
 Transverse Strength ........................................... 99
 Bonding Strength .............................................. 99
CHAPTER 5:
 Tests Made Upon Clays ......................................... 100-103
CHAPTER 6:
 Kinds of Clays and Their Uses .................................. 104-106
 Kinds of Clays............................................. 104-106
 Kaolin ................................................... 104
 Ball-Clay ................................................ 104
 -Fire-Clay...........................104
 Stoneware Clay ........................................... 104
 Terra-Cotta Clays ...................................... 104-105
 SSewer Pipe Clays.......................................... 105
 aBrick Clays .............................................. 105
 Slip Clays ................................................ 106
 Miscellaneous............................................. 106
 Uses of Clay ................................................. 106
CHAPTER 7:
 Geology of the Clays of F'lorida.................................. 107-119
 Stratigraphy ..................................................... 107
 Table of Geologic Formations in Florida ............................. 107
 Eocene .................................................... 107-108
 Oligocene .................................................... 108
 Miocene................................................... 108-109
 Pliocene ..................................................... 109
 Pleistocene ................................................... 109
 Geologic Age, Occurrence and Distribution of the Clays.............. 109-117
 Conditions of Sedimentation and Sources of Material ...............117-119
CHAPTER 8:
 Distribution and Description of Deposits by Counties ...............120-215
 Alachua County............................................ 122-124
 Baker County.............................................. 124-125
 Bay County .................................................. 125
 Bradford County .............................................. 125
 Brevard County .............................................. 125
 Broward County.............................................. 125
 Calhoun County ................. ........................... 125-128
 Charott Co nty ... ... ... ... .... ... ... ... ... ... ... 12
 Chrlott County.............................................. 128
 Clay County ...........................128-133
 Collier County (see L ee).
 Columbia County........................................... 133-134
 Dade County ................................................. 134
 DeSoto County............................................. 134-135