xiv PREFACE. 



ansas,* received from Mr, Calboun the appointment of geologist 

 and mineralogist on this expedition ; and having, at a subsequent 

 period, been selected, as the leader of the expedition of 1832, to 

 resume and complete the discoveries under the same authority, 

 commenced in 1820, it is to the journals and notes kept on these 

 separate occasions, that he is indebted for the data of the narra- 

 tives and for the body of information now submitted. 



* Vide Scenes and Adventures in the Semi- Alpine Region of the Ozark Mountains 

 of Missouri and Arkansas, with a View of the Lead-Mines of Missom-i. New York, 

 1819. Philadelphia: Lippincott, Grambo, and Co. 1 vol. 8vo. pp. 256. 1853, 



Washington, D. C, October 24, 1854. 



