12. BELLAIR SAND REGION. 281 



that publication are reproduced herewith. The locahty from 

 which the samples were taken is not specified, nor are the respect- 

 ive depths. The first column is for soil and the second for sub- 

 soil. 



Mechanical Analyses of "Sandhill," Leon County. 



Soil Subsoil 



Fine gravel (2-1 mm.) 0.2 (Trace; 



Coarse sand (1-.5 mm.) 8.6 9.3 



Medium sand (.5-.25 mm.) ^- 24.5 25.8 



Fine sand (.25-. i mm.) 51.9 49.7 



Very fine sand (.1-.05 mm.) 11. i 11.4 



Silt (.OS-.005 mm.^ 1. 1 i.o 



Clay (.005-0 mm.) 2.3 2.4 



Total 99.7 99.6 



There is comparatively little difference between soil and sub- 

 soil; a fact brought out also by the chemical analysis given below. 

 Samples of soil and subsoil were collected by the writer on dry 

 sandy uplands about 3^ miles south of Tallahassee, July 22, 

 19 1 4, and analyzed by L. Heimburger, Assistant State Chemist, 

 in the manner described in the appendix. The first column of 

 figures represents the first six inches from the surface, and the 

 second, six to twelve inches. 



Partial Chemical Analyses of "Sandhill," Leon County. 



Soil Subsoil 



Moisture .12 .04 



Volatile matter 1.67 .99 



Nitrogen (N) .089 .085 



Potash (K2O) .030 .035 



Lime (CaO) .185 .195 



Phosphoric acid (P2OS) .032 .022 



Iron and alumina (Fe203, AI2O3) 1.15 1.51 



Insoluble matter 97.38 97.69 



Although this soil is of course poorer than that of the neigh- 

 boring red hills in humus and all soluble constituents, it is not the 

 poorest soil there is by any means, and there are many small 

 farms scattered over it. 



them as such), along creeks and rivers in the coastal plain of the Carolinas 

 and Georgia, and near the Gulf coast of Florida. The area under considera- 

 tion belongs to neither of these classes, but in soil and vegetation it is very 

 similar to typical sand-hills. (For descriptions of the vegetation of the fall- 

 line sand-hills of the Carolinas see Bui. Torrey Bot. Club 37:413. 1910; 38:225: 

 1911 ; and for that of the fluvial sand-hills of Georgia see Ann. N. Y. Acad. 

 Sci. 17 :82-89. 1906.) 



