THE SOILS OF FLORIDA. 
57 
soils resemble transported soils. As the igneous rocks are complex 
chemically and mineralogically, the soils arising from them are 
likely to share more or less in this complexity. The sedimentary 
rocks, having been affected at the time of their deposition by the 
assorting power of wind or water, give rise to soils less complex 
mineralogically, and probably also less complex chemically. The 
residuo-sedimentary soils are of special importance in Florida, 
much the greater area in this state having soils of this type. 
All soils are subjected after their formation to a limited amount 
of assorting of materials. The readily soluble materials, except in 
exeedingly dry climates, pass away in solution. The finer materials 
in the soils in sections of heavy rainfall are to a considerable extent 
removed from the soils by percolating waters. Both solution and 
mechanical transportation have affected the soils of Florida. The 
rainfall over the entire State is heavy and the removal of the finer 
clay particles is an important factor in the formation of the sandy 
soils of the interior of the state. 
TRANSPORTED SOILS. 
Transported soils are those which have been transported from 
the place where originally formed and reaccumulated at another 
locality. The importance of this process arises from the fact that in 
being transported the soil materials are subjected to more or less 
assorting. The alluvial soils of the river valleys are accumulated 
in this way, the alluvium being the finer material carried by the 
water. Soils may be transported by water as the alluvial soils, or 
by the wind. The latter are known as seolian soils. 
COLLUVIAL SOILS. 
The colluvial soils are those which have been slightly removed 
from the place where originally formed and more or less intermixed 
with other soil materials. They are found chiefly along hillsides, 
being due largely to creep of the soils and to slides which carry the 
soil to a lower level and mix it with other material. The chief distinc 
tion between colluvial and transported soils lies in the fact that the 
colluvial soils have not been subjected to the assorting of materials 
which is characteristic of the transported soils. 
Surface wash by running water has an important bearing on soil 
formation. By this means soils are frequently transported and the 
mineral constituents more or less perfectly assorted. Along steep 
slopes surface wash is often so effective that no residual material 
