INTRODUCTORY LETTER. 
3 
Orrice oF THE ARKANSAS SURVEY, 
New Harmony, Indiana, October 15th, 1858. 
Davin Datz Owen, M. D.— 
Dear Sir: I herewith submit my Report of a Geological Reconneis- 
sance, made in the State of Arkansas, during the fall of 1857, and summer 
of 1858; prosecuted in accordance with instructions received from you; at 
different times, while progressing with the survey. 
Allow me, also, to acknowledge here, the many obligations I owe to 
you for valuable counsel and aid, while carrying forward the survey, under 
your direction. 
Most respectfully yours, 
E. T. COX. 
