AGE OF THE UNDERLYING ROCKS OF FLORIDA 
89 
1281. feet. 
1305 and 1334 
1421 feet. 
1450 feet. 
1490 feet. 
1495-1575 feet. 
1620-2250 feet. 
2250-3080 feet. 
Large Rotaliidae, no Orbitolina, a brachiopod present, 
feet. Similar. 
Calcite crystals and white limestone. A few foraminifera. 
White limestone and flinty chips. A few Rotaliidae. 
Fine, sandy. No foraminifera. 
White or bluish limestone. Orbitolina. 
Compact limestone. Few poorly preserved foraminifera. 
Hard, grey or whitish limestones, occasionally with peculiar 
foraminiferal casts, appearing at various levels, evidently 
having been derived from around 2500 feet, where it is 
common. 
PROBABLE STRATIGRAPHY. 
As already noted, the upper 380 feet which is not represented 
by samples, probably has the same sequence as in the wells in the 
same general region—that is,- Ocala, at slight depth or wanting, 
then a Nummulite Eocene horizon, below which would come the 
Orbitolina horizon of the lower Cretaceous, Fredericksburg Series. 
Below this, at Anthony, is the hard, brownish limestone and it is 
in this series that the samples at Bushnell begin at 380 feet. At a 
little over 1,000 feet and perhaps much higher are the large., con¬ 
cave Orbitolina forms characteristic of the Trinity group of the 
Lower Cretaceous, The series for a considerable distance, per¬ 
haps throughout, is Lower Cretaceous although peculiar-forms in 
the deepest thousand feet and especially beyond 2,500 feet may 
belong to other older series. 
CITY WELLS AT APOPKA, ORANGE COUNTY, 
FLORIDA. 
Total depth represented by samples, 390 feet, depth of casing 
117 feet. 
The upper 114 feet of the well is represented by samples at the. 
following depths: 50, 60, 103, 104, 106 and 114 feet. No foram¬ 
inifera were found in any of these samples. 
At 115 fee.t foraminifera begin to appear, the most common 
being the high forms of Orbitolina. Specimens of Orbitolina occur 
also at 145, 250, 310, 330, 380 and 390 feet showing that either 
they have come from between that depth and 115 feet or are found 
