SMITHSON IAN INSTITUTION 



UNITED STATES NATIONAL MUSEUM 

 Bulletin 109 



CONTRIBUTIONS TO A HISTORY 



OF AMERICAN STATE GEOLOGICAL AND 



NATURAL HISTORY SURVEYS 



EDITED AND COMPILED BY 



GEORGE P. MERRILL 



Head Ciinitoi of Geology, United Sides National Museum 



WASHINGTON 



GOVERNMENT PRINTING OH'ICF, 



1920 



