49 



SOJLS. 



object is to give such facts as have been fairly well established 

 by observation, hoping that more thorough investigations in 

 the same line will thereby be stimulated. 



VEGETATIVE BELTS IN NORTHERN MISSISSIPPI. 



The diagram below is a sketch-map of the most northern 

 part of Mississippi, showing the narrow parallel belts of suc- 

 cessive geological formations or terranes running north and 

 south, wllich bear the varying zones of vegetation character- 

 istic of each one, as indicated in the legend beneath. 



FIG. 77. Sketch map of Soil Belts in Northern Mississippi, east and west. 



SOIL REGIONS OF NORTHERN MISSISSIPPI, SHOWING CHANGES FROM EAST TO 

 WEST, AND LIME PERCENTAGES IN SOILS. 



9- 



96. 



.40 



1.12 



.40 

 .26 



.40 



clay. ;hackberry, cane. 



Sandy alluvium, " Frontland. Sweet gum, maple, willow oak, elm, hackberry. 

 Light sandy ioam of " Dog- Dogwood, sweet gum, holly, ash, sassafras, prickly 

 wood ridge." near. 



Limestone Belt, Beginning on the east we have, first, a narrow belt 

 of limestones of the carboniferous formation, on which there is a fine 



