SECOND ANNUAL REPORT—EUEEERS EARTH. 
291 
Section in Prospect Hole North of Pit. 
5. Sand and soil .. 1 foot. 
4. Bone pebble stratum ... 1 to 2 feet. 
3. Unconformity. 
2. Marly limestone . 9 to 10 feet. 
1. Fullers earth. 
The limestone of No. 2 is apparently the same as No. 3 of the 
preceding section, but is not so much decayed as in that section. 
The following section was obtained at the abandoned pit of the 
Columbia Fullers Earth Company, about two miles northeast of 
Ellenton: 
Section in Pit of Columbia Fullers Barth Company. 
Surface sand and soil ... 1^4 feet. 
Dark carbonaceous sands . 1^4 feet. 
Blue calcareous clay, with occasional- bone fragments. 4 feet. 
Fullers earth reported to be . 6to 7 feet. 
The fullers earth of Manatee County, like that of Gadsden County, 
is probably, as stated in the report on Stratigraphic Geology, (p. 92), 
of Upper Oligocene age. 
EXTENT AND AMOUNT OF FULEERS EARTH DEPOSITS 
IN FLORIDA. 
From the localities given above at which fullers earth is known to 
occur it is apparent that these deposits are to be expected over a large 
extent of territory in Florida reaching as far west at least as the Apa¬ 
lachicola River and as far south as Manatee County. 
An estimate of the total amount of workable fullers earth in the 
State is impossible at the present time. The workable fullers earth 
of Gadsden County alone has been estimated on a preceding page to 
be sufficient to supply the demand for this grade at the present rate 
of consumption for about 500 years. Other sections of the State at 
which fullers earth may be expected to occur have not yet been ex¬ 
amined in detail. 
