CONTENTS.
PACE
Introduction ............................................. I .... ......... 85
T he area treated ....................................................... 86
G eology .................................................................. 86
O ligocene ............................................................ 86
V icksburg group .................................................. 86
A palachicola group .................................................. 88.
M iocene ............................................................. 89
P liocene .............................................................. 9()
P leistocene .......................................................... 91
Earth movements d1iring the Pleistocene ............................... 91
'Topography and Drainage ....................... 0 ...................... 92
E levations ....... I ................. .......... 92
R ivers ................................................................ 92
T he Lake R egion ..................................................... 93
C lim ate ........................................................ .......... 94
T em perature ......................... ................................ 94
P recipitation ......................................... ............... 95
Soils 96
General discussion Of underground waters ............................... 99
S ou rce .... ... ..... ........................................ ..........
A nnual rainfall ...................................................... 9.9
D isposition of rainfall ................................................. 100
Amount available for the underground supply ......................... io:2
Underground circulation of water ............. ........................ 102
Cause of m ovem ent ......... .......................................... io2
R ate of m ovem ent .................................................... 102
Depth of underground water .......................................... 102
Hydrogen sulphide' in underground water .............................. 104
Sulphur water not evidence of beds of sulphur .......................... io6
Sulphur deposits formed from hydrogen sulphide. io6
Absence of hydrogen sulphide from certain waters in Florida ........... 166
Amount of hydrogen sulphide influenced by pressure .................. 107
A rtesian w ater ......................................................... 107
A rtesian water defined ................................................. 107
Conditions necessary to retain artesian water ............................ io8
A rtesian basin ...................................................... 108
A rtesian slope ..................................................... 109
Artesian water from unconfined horizontal beds ...................... iio
Artesian water from* solution passages .................... 0 .......... III
Source of artesian water in Florida .................................... III
Formations supplying artesian water ................................... 112
D epth of artesian water ............................................... 112
C ost of w ells .............................................. ......... 112
Increased flow with increased depth ................................... 113
Increased head with increased depth .................................... 113
Increased temperature with increased depth ................... 0..* .. 0 0.. ILI