PLAN OF REGIONAL DESCRIPTIONS. 



THE description of each natural region into which the 

 state is here divided follows as nearly as possible 

 the following plan, the amount of space given to each 

 head varying with the character of the region. 



Location and area. External relations. 



References to previous literature. 



Geology and soils. 



Topography and hydrography. 



Climate. 



Types of forest. Frequency of fire. 



LIST OF TREES. 



Percentage of evergreens. Other noteworthy features of 



the list. 

 Economic aspects. 



Density of population. Increase in last decade. Percentage 



of whites. 

 Relative area of forests and clearings. 

 Status of stock laws. 



Changes in relative abundance of certain species, from va- 

 rious causes. 

 Principal forest products and wood-using industries. 

 Illustrations. 



Location and external relations. — The location of each 

 region is not described in detail, for that is indicated 

 with sufficient exactness by the map. As most of the 

 regions are not confined to Alabama, some account of 

 their extent outside of the state is appropriate. 



References. — In the references to literature the titles 

 in the foregoing bibliography are not reepated, but only 

 the author's name and the number of his paper (if more 

 than one by that author is listed), and then in parenthe- 

 ses the numbers of the pages on which the region 

 under consideration is described, if they are not too 

 numerous. 



The geology and soils, topography and hydrography, 

 are described very briefly. Full geological details can 

 be found in several of the reports cited in the bibliogra- 

 phy. 



Climate. — For convenience of reference all the cli- 

 matic data used herein are collected on a single page, 

 which follows the regional descriptions. (Appendix B.) 



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