CONTENTS. 
PAGE. 
Fertilizers and fertilization . 48 
Chemical Analyses. 48 
Soil formation . 49 
Rocks of the earth’s crust. 49 
Igneous rocks. 49 
Secondary or sedimentary rocks. 50 
Disintegration of rocks. 52 
Changes of temperature ...» . 52 
Frost and freezing. 53 
Wind . 53 
Water . 53 
Plants and animals. 55 
Accumulation of disintegrated material ..•. 5 5 
Classification of soils . 56 
Residual soils. 56 
Residuo-sedimentary soils. 56 
Transported soils. 57 
Colluvial soils . 57 
Other terms descriptive of soils. 5 8 
Soil names in use in the Bureau of Soils. 58 
Soil literature . 62 
Soil types in Florida. 63 
Pine lands . 63 
Rolling pine. 63 
Flatwoods . 66 
Palmetto flatwoods . 66 
Open flatwoods . 70 
Pine land of the Miami limestone. 71 
Hammock lands. 72 
Calcareous hammock. 72 
Clay hammock. 73 
Sand hills. 73 
Sand dunes . 74 
Scrub . 74 
Prairie and savanna. 75 
Marsh and muck. 75 
The Everglades of Florida. 76 
Alluvial lands. 78 
Swamp lands .. 79 
T v e Water Supply of West-Central and West Florida—By E. H. Sellards and 
Herman Gunter. 
Introduction . 87 
Location . 87 
Climate .. . 87 
Temperature . 88 
Rainfall . 89 
Artesian Water Supply. 89 
County .Reports . 91 
Escambia County. 91 
Location and surface features. 91 
Elevation . 93 
Drainage . 94 
Area of artesian flow. 94 
Local details .. 9 5 
Santa Rosa County. 101 
Location and surface features. 101 
Elevation .. 102 
Drainage . 102 
Area of artesian flow. 103 
Local details . 104 
