274 FLORIDA GEOLOGICAL SURVEY-SEVENTH ANNUAL REPORT. 
of the county, and comprises a part of the better drained country 
above the New and Santa Fe Rivers and Olustee Creek. 
Most of the Norfolk loamy sand is under cultivation. It is one 
of the most productive soils in the county, and is used for the pro¬ 
duction of the general farm crops common to the region. Fertiliz¬ 
ers are used extensively and are deemed necessary for the best yields. 
From, io to 30 bushels of corn and from one-third to one-half bale 
of cotton per acre are the ordinary ranges in the yields of these sta¬ 
ples. Velvet beans, cowpeas, peanuts, and oats do well. Litmus 
tests show the soil to be decidedly acid. Applications of either burnt 
lime or limestone would be beneficial. 
Land of this type ranges in value from $15 to $25 an acre, the 
higher price being asked for improved property of even surface and 
near markets or shipping points. 
The following table gives the results of mechanical analyses of 
samples of the soil and subsoil of this type: 
Mechanical analyses of Norfolk loamy sand. 
Number 
Descrip¬ 
tion 
Fine 
gravel 
Coarse 
sand 
Med¬ 
ium 
sand 
Fine 
sand 
Very 
fine 
sand 
Silt 
Clay 
2fi1115 
Soil 
Per ct. 
1.1 
.5 
Per ct. 
14.1 
12.0 
Per ct. 
21.9 
24.9 
| 
Per ct. 
36.4 
38.9 
Per ct. 
12.0 
10.4 
Per ct. 
5.5 
3.8 
Per ct. 
! 8.9 
9.7 
261110 
Subsoil— 
NORFOLK FTNE SANDY LOAM 
The surface soil of the Norfolk fine sandy loam is a light-gray 
to light brownish gray fine sand, underlain at about 6 to 10 inches 
by a yellow or pale-yellow loamy fine sand to fine sandy loam, 
which becomes heavier with depth, and at an average depth of 
about 28 inches passes abruptly into a yellow or pale-yellow, fria¬ 
ble fine sandy clay. The surface soil is darker in the more nearly 
level areas, where the organic-matter content is higher, and the 
lower part of the subsoil in the poorer drained depressions is often 
slightly mottled with yellowish red and sometimes with gray. 
Although this type is not extensive, it occurs in all parts of 
the county. The largest single area lies southwest of Lake Butler. 
As a whole this type is well drained, although there are slight depres¬ 
sions in some areas which receive the surface drainage from; the 
adjoining higher land and sometimes remain wet for long periods. 
The surface features of the Norfolk fine sandy loam resemble very 
