WATER SUPPLY' OP PASTERN AND SOUTHERN FLORIDA. 161 
Among the isolated flowing wells in the State two at Grace- 
ville, in Jackson County, are of especial interest. The first well 
at this locality was drilled some years ago by Mr. F. J. White. 
When first drilled, Mr. White says, the well flowed slightly above 
the surface, but soon afterwards ceased to flow. On the day fol¬ 
lowing the great San Francisco earthquake of 1906, however, the 
well was observed to be flowing, and it has continued flowing 
from that date. The second well at Graceville was drilled in 
1910 for the city by Mr. C. D. Williams. This well is 287 feet 
deep. The water has a head sufficient to rise about 2 feet above 
the surface. The well is eight inches in diameter for 161 feet, 
and six inches to the bottom. The flow is estimated at 20 gallons 
per minutes. Although no well samples have been obtained it 
seems probable from the driller’s notes that the wells at this lo¬ 
cality pass through the Vicksburg Limestone and enter an under¬ 
lying formation. 
A well drilled as a test well for oil about six miles south of 
Chipley, in Washington County, is said to have flowed at a depth 
of about 1,250 feet. 
During 1912 flowing wells were obtained at and near Ponce 
de Leon, in Plolmes County. These wells vary in depth from 200 
to 213 feet. The water rises 5 to 6 feet above the surface. After 
passing through about 100 to 130 feet of sands, sandstone, and 
blue marl, limestone is reached from which the artesian water is 
obtained. The following is a log of one of these wells drilled 
for the town of Ponce de Leon. This well flows 65 gallons per 
minute and has a head of six feet above the surface. The record 
is by the drillers, M. J. Gray & Company. 
Feet. 
Coarse yellow sand . 0- 10 
White sandy clay . 10- 39 
Yellow sand .... 39- 43 
Sandstone ....... 43-60 
Blue marl ... 60-130 
White limestone . 130-203 
