SOUTH DAKOTA 



GEOLOGICAL SURVEY 



BULLETIN NUMBER SIX 

 1914 



A Preliminary Report on the Biology of Harding County 

 Northwestern South Dakota 



By STEPHEN S. VISHER 



Report of State Geologist 



STA TE, PUBLISHING CO, 



; D. 



LLWOOD CHAPPELL PERISHO, State Geologist 

 1914 



