REGIONS AND HUMAN ECOLOGY 33 



masters. Systems of land tenure have followed the migra- 

 tion of cotton culture to the Western Belt. Gins, com- 

 presses, oil mills, and warehouses have been built to 

 facilitate the handling of the fiber and its seed. As cotton 

 culture has increased cities have grown up to serve as 

 primary markets and points of export. Over and above 

 all is the warm sun that makes cotton the product of the 

 South. Under all is the soil which seems by its texture 

 and topography to sift out races and systems of land 

 tenure to fit with cotton culture. 



