56 FLORIDA GEOLOGICAL SURVEY—I5TH 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 
Sewer Pipe Clays. 105 
Brick Clays . 105 
Slip Clays. 106 
Miscellaneous . 106 
Uses of Clay. 106 
Chapter 7: 
Geology of the Clays of Florida. 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 
Charlotte County . 128 
Citrus County. 128 
Clay County . 128-133 
Collier County (see Lee). 
Columbia County. 133-134 
Dade County. 134 
DeSoto County . 134-135 
