SECOND ANNUAL REPORT—EULRERS EARTH. 261 
the order of the amounts produced as follows: Florida, Arkansas, 
Georgia, South Carolina, Massachusetts, Colorado and Texas. The 
total output of the United States as reported in the “Mineral Re¬ 
sources” for 1907 was 32,851 short tons. Of this amount Florida 
produces according to reports sent to the Florida Survey 24,148 short 
tons, or nearly three-fourths. 
GADSDEN COUNTY. 
GEOGRAPHY AND TOPOGRAPHY. 
Gadsden County lies in middle west Florida between Ocklocknee 
and Apalachicola Rivers. Its northern boundary is the State line, 
while on the south it joins Teon and Liberty Counties. The interior 
of the county, except where cut into by streams, forms a plateau, the 
top of which lies 250 to 300 feet above sea. This plateau is crossed 
by the Seaboard Air Line Railroad from Quincy to Mount Pleasant; 
by the Apalachicola Northern Railroad from Horsford to Hardaway, 
and by the Georgia, Florida and Alabama Railroad from Gibson to 
Havana. The depot of the Seaboard Air Line at Quincy is according 
to the railroad survey levels 260 feet above sea. 1 From Quincy to 
Mount Pleasant, a distance of nine miles, there is, as indicated by 
barometer readings, but slight change in elevation, Mount Pleasant 
being somewhat higher than Quincy, probably reaching at some inter¬ 
mediate points 300 feet. Along the line of the Apalachicola North¬ 
ern Railroad, crossing the plateau from the south, elevations are found, 
as shown by a profile kindly furnished to the Survey by Mr. R. B. 
Coleman, General Manager of the Apalachicola Northern, in the 
vicinity of Hardaway, up to and slightly exceeding 300 feet above 
mean low tide. 
The Apalachicola River forming the western boundary of the county 
has cut its channel more than 200 feet below the general plateau level. 
In order to reach the plateau with the minimum grade the railroad 
lines'follow streams heading back from the river. Thus from River 
Junction the Seaboard Air Line and the Apalachicola Northern rail¬ 
roads follow Mosquito Creek and its tributaries. Even along these 
streams the descent is rapid, and where not cut across by streams the 
plateau continues with but slightly reduced elevation to the banks of 
the Apalachicola itself. The bluffs at Chattahoochee Landing and at 
Aspalaga reach a height of 175 to 180 feet above the river level with¬ 
in a short distance of the river. Similar elevations may be found at 
many intermediate points. At Rock Bluff, in Liberty County, an eleva- 
1 Bull. U. S. Geol. Surv. 274, p. 192, 1906. 
