CONTENTS 
Pag# 
Administrative report... 7 
State Survey law ... 7 
The purposes and duties of a State Geological Survey..... 9 
Members of the State Survey force ...11 
Co-operation with the National Geological Survey. 12 
Relation of the State Survey to other organizations . 12 
The Survey library . 13 
Exhibition of geological material. 13 
The relation of the State Survey to the ownership of 
mineral-bearing lands ... 14 
Samples sent to the Survey for examination . 14 
The collection of statistical information. 15 
Financial statement . 15 
Sketch of the geology of Florida. 17 
Table of the geologic time divisions . 20 
Fossils contained in the Florida formations... 23 
Fossil human remains in Florida . 2§ 
Mineral industries . 26 
Phosphate . 26 
Varieties . 28 
Location . 29 
Origin and occurrence . 29 
Clay ..I... 31 
Plastic kaolin or ball clays . 32 
Brick-making clay. 33 
Fuller’s earth . 33 
Minerals of fuller’s earth. 33 
Analysis of fuller’s earth .. 34 
Physical properties of .-...... 35 
Tests for fuller’s earth . 35 
Uses . 36 
Occurrence . 36 
Location and extent . 36 
Production of fuller’s earth during 1907 . 37 
Peat . 37 
Diatomaceous earth . 39 
