F I K S T REPORT 



SAMUEL HUBBARD SCUDDER COLLECTS 

 BIOLOGICAL LABORATORY, 

 of a WILLIAMS COLLEGE. 



GEOLOGICAL RECONNOISSANCE 



OF THE NORTHERN COUNTIES OF 



ARKANSAS, 



MADE DURING THE YEARS 1857 AND 1858, 



BY 



DAVID DALE OWEN, 



PRINCIPAL GEOLOGIST, 



ASSISTED BY 



"WILLIAM ELDERHORST, Chemical Assistant; 

 EDWARD T. COX, Assistant Geologist. 



LITTLE ROCK: 



JOHNSON & YERKES, STATE PRINTERS. 



1858. 



