278 
FLORIDA STATE GEOLOGICAL SURVEY. 
Sand. 
Yellow clay .... 
Sand and shell . 
Rock . 
Gravel . 
Rock . 
Gravel and rock 
Quicksand . 
Rock . 
Sand. 
Rock . 
Feet. 
0 
-24 
24 
-34 
34 
-40 
40 
-41. 
41 
-45 
45 
-4654 
46}4 
-6154 
61 l / 2 
-65 
65 
-67 
67 
-74 
75 
-88 
The following is an analysis of the water from this well made 
by the American Water Softener Company, Philadelphia, Pa., 
November 3, 1909: 
Grains per Parts per 
U. S. gallon. 
million. 
Calcium carbonate . 
. 7.22 
123.77 
Calcium sulphate. 
. 0.54 
9.25 
Calcium chloride . 
. 0.78 
13.38 
Magnesium carbonate . 
. 0.73 
12.51 
Sodium chloride . 
. 0.81 
13.78 
Free carbonic acid . 
. 0.56 
9.60 
Iron, alumina and silica . 
0.23 
3.94 
Incrusting solids . 
. 9.50 
162.87 
Non-incrusting solids . 
. 0.81 
13.78 
LEE COUNTY. 
LOCATION AND SURFACE FEATURES. 
Lee County lies bordering the Gulf of Mexico and extends 
inland to Lake Okeechobee. The area of the county is 4,641 
square miles. The surface elevation in the northeastern part of 
the county approximates 25 feet above sea level. No topographic 
map has been made of the county, but the surface is prevailingly 
level with, in general, a slope toward the coast. 
WATER-BEARING FORMATIONS. 
The artesian wells in this county are believed to obtain their 
chief supply from the Vicksburg formation. 
