358 Branner — Former Extension of the Appalachians 



Louisiana, Mississippi and Tennessee are shown by a considera- 

 ble number of facts, some of which, if taken alone, have but 

 little weight, but pointing, as they do, all in the same direc- 

 tion, they make a reasonably strong case. 



The Reversal of the Arkansas drainage* — In studying the 

 origin of the lower Mississippi the possibility of the headwater 



* See also Origin of the Lower Mississippi, by L. S. Griswold, Proc. Bost. Soc. 

 Nat. Hist., xxvi, 474-479. 



