214 CEMENT MATERIALS AND INDUSTRY. [bull, jj 
of the Selma chalk, comes to the surface. The limestone never com 
to the surface except along the streams. 
When the country was first settled this black prairie soil was I 
strong for cotton. It produced a large stalk, but very little cott« 
Until recent years all the cotton was planted on the poorer "post-oai 
lands, and the prairie lands were put in corn. But after years of m 
tinuous crops of corn the prairie land became the best cotton la: 
and now the finest cotton grows on the prairie lands. 
Later investigation around Columbus and Aberdeen has veriil 
the fact that the land known by all as the "post-oak land," as disl J 
guished from the black "prairie soils," is the land from which i 
entire Lafayette has not been removed. The soil is not so rich i 
the prairie soils, and has been largely abandoned for cultivation. 
The following well sections are of interest in this connection: 
Well at Ravine, on land of J. Q. Poindexter. 
Selma chalk 
Sand, water bearing, and principal source of water 
Red clay 
Depth 
Water rises within 26 feet of surface. Water soft. 
Well 2 miles due east of Rainne, on Sebe Gavin's land. 
Depth of well 
Water flows 16 feet above surface. 
Well on Doctor Patty's land, near Bigbee Valley post-office. 
Depth of well 
Water flows 20 feet above surface. Water found in sand, and soft. 
Well at Bigbee Valley post-office, sec. 16, T. 16, R. 19 E. 
Depth of well 
Thickness of Selma chalk 
Water flows 20 feet above surface. 
Well in sec. 21, T. 16, R. 19 E. 
Depth of well 
Thickness of sand 
Flows. 
Well at (Jliftonville. 
Limestone 
Dark sand, dry 
White sand, water-bearing 
Dark sand, dry 
White sand, water-bearing 
Ferruginous sandstone 
Depth of well, 450 feet; 300 feet in limestone, 150 feet in sand. 
Source of water, green sand. 
