EXPLANATION OF PLATE 14.—SOIL TYPES. 
Fig. 1.—Sand dune. This view illustrates one of the recent sand dunes 
near Mayport at the mouth of the St. Johns River. 
Fig. 2.—Ancient sand dune. This view is taken at the crossing of the 
public road across the dunes about two miles west of Daytona. The dune here 
consists of light colored sand to a depth of four or five feet, underlaid by ochre 
yellow sands. 
Fig. 3.—Clay soil. Exposure at Saw Pit Landing on the St. Marys River in 
Nassau County. The soil here is a sticky clay soil residual from the decay of the 
clayey limestone. 
i 
! 
