FRUITS IX WEST VIRGINIA, KENTUCKY, AND TENNESSEE. 7 



On such a basis, for example, the physiographic Appalachian 

 Valley province as outlined by Fenneman is subdivided. The differ- 

 ence in latitude makes a division of this province necessary, and the 

 difference in elevation near the Tennessee-Virginia boundary line 

 suggests a division into pomological regions at that line. The two 

 parts of this province thus made are called the East Tennessee Valley 

 region and the Virginia Valley and Kidge region and lie partially 

 in the area considered in this bulletin. 



The boundary lines of the remainder of the pomological regions 

 of this area are the boundary lines of the physiographic provinces as 

 defined by Fenneman. 



The pomological regions 4 parts of which at least are included in 

 this area are:(l) The East Tennessee Valley region, (2) the Vir- 

 ginia Valley and Ridge region. (3) the Cumberland Plateau region. 



Fig. 1. — Outline map of the United States, showing the average number of carload ship- 

 ments of strawberries for 1914 and 1915, together with the approximate shipping sea- 

 son for each region. The dots represent 10 carloads each except where they occur 

 singly, when they may represent any number of carloads up to 10. (Adapted from 

 data in Department of Agriculture Bulletins 237 and 477.) 



(4) the Allegheny Plateau region, (5) the Interior Low Plateau 

 region, (6) the Gulf Coastal Plains region. 



These regions are shown and their extent and location indicated 

 on the map (fig. 2). By reference to this map the pomological 

 region in which any section is located may be determined. The 

 boundaries used in making this map are as follows : 



East Tennessee Valley region. — On the north, the Tennessee-Virginia bound- 

 ary line, on the Ocowee and Chilowee geological series and the Knox Dolomite 

 and the Younger formations. These are shown on the folios of the United 

 States Geological Survey and the Geological Map of Tennessee. On the south, 

 the Tennessee-Georgia boundary line ; on the west the line follows the foot of 



4 The pomological regions here outlined are not necessarily coordinate, but simply nat- 

 ural divisions. Certain sections may later be regarded as coordinate with some classed 

 here as regions, while some classed as regions may later be grouped as sections of a region. 

 Such changes are to be expected in the further development and classification of the 

 knowledge of the fruit industry, itself so recent. 



