AGRICULTURAL SUB-DIVISIONS OF THE COTTOX BELT. 65 
Near the coast in Louisiana and Texas, and in some parts of the allu- 
vial region of the Mississippi and its tributary rivers, the Drift itself in 
turn has been covered with still more recent deposits, a kind of river- 
swamp or Gulf-swamp formation, from which some of the most impor- 
tant soils of these localities have been directly derived. 
Agricultural subdivisions. — The agricultural characters of the 
Cotton States may be described under the following heads: 
L The alluvial region, including — 
a. The alluvial region of tbe Mississippi and other large rivers. 
b. The marsh region of the coast and lakes. 
2. The loicfr prairie region, including — 
a. The central prairies of Louisiana and the coast prairies of 
Texas. 
b. The prairies and savannas of Florida. 
c. The llano estacado and gypsum lauds of Texas and the Indian 
Territory. 
3. Th t lo N g- b af p i n e reg ion, i n el u d i D g — 
a. The long leaf pine hills and Hats. 
b. The oak and hickory uplands with long-leaf pine. 
c. The hammocks of Florida; the shell prairies, lime hills, and 
red lime lands of Mississippi, Alabama, and Florida. 
4. The oak uplands region, including — 
a. The oak and hickory uplands with short-leaf pine. 
b. The table lands of Mississippi and Tennessee, and the Cane 
Hills or Bluii* region, 
5. The upper prairie region, including — 
a. The black Cretaceous prairies of Texas, Mississippi, and Ala- 
bama. 
b. The blue marl hinds and hill prairies (Pontotoc Ridge and 
Chunnenugga Ridge of Mississippi and Alabama), 
6. The red and hroicn loam region, based on the older limestone forma- 
tions, including — 
a. The red loam lands of the Tennessee Basin, of the valley of East 
Tennessee, of the Coosa Valley, and of the Tennessee Valley 
in North Alabama. 
b. The red loam uplands and prairies of Arkansas, Indian Terri- 
tory, and Texas. 
7. The sandy and siliceous lands of the older formation*, including — 
a. The cherty limestone lands and "barrens" of Tennessee, Geor- 
gia, and Alabama; the cherty lands and their prairies of 
northern Arkansas. 
b. The Carboniferous sandstone soils of Alabama, Tennessee, 
and Georgia. 
c. The sandy prairie region of Indian Territory. 
8. The gneissic region. 
63 cong 5 
