WATER SUPPLY OP PASTERN AND SOUTHERN FLORIDA. 203 
404 feet deep, is four inches in diameter and the water stood 
when measured January 6, 1910, 12.5 feet from the surface. The 
second well is two inches in diameter and 220 feet deep. The 
water is reported to stand at about the same level. 
MAGNOLIA SPRINGS. 
Magnolia Springs, a station on the Atlantic Coast Line Rail¬ 
road, one mile north of Green Cove Springs, takes its name 
from a small spring located along the western bank of the St. 
Johns River. A four-inch well owned by O. D. Seavey, pro¬ 
prietor the Magnolia Springs Hotel, was sunk by W. J. Sher¬ 
man in 1882. This well is said to be 325 feet deep and flows 
several feet above the surface, although the exact head could 
not be obtained. This water is bottled and sold as a medicinal 
and table water. The following analysis shows the mineral con¬ 
stituents. Analysis by C. F. Chandler, Ph. D., School of Mines, 
Columbia College, New York, N. Y.: 
\ 
Constituents. 
Sulphate of potash . 
Sulphate of lime . 
Chloride of sodium . 
Carbonate of soda. 
Carbonate of lime .. 
Oxide of iron and alumina 
Silica ... 
Organic and volatile matter 
Parts per million. 
.Trace 
. 21.3 
. 14.4 
. 26.1 
. 40.4 
.Traces 
. 31.0 
. 16.4 
190.4 
Two other wells occur on this same property, but a record 
of these was not obtained. They are both reported to furnish 
an abundant supply of water and are used for general household 
purposes. 
middleburg. 
Middleburg lies in the north-central portion of Clay County, 
just at the point where Black Creek divides, forming the north 
and south forks. There are several flowing wells in the vicinity 
of Middleburg. The wells vary in depth from 355 to 498 feet. 
