UNITED STATES GEOLOGICAL SURVEY 



CHARLES D. WALCOTT, ]>IRECTOR 



GEOLOGY 



OF THE 



NAREAGANSETT BASIN 



BY 



K. S. SHALER, J. B. W^ODWORTH, and A. F. FOERSTE 



WASHIIS^GTOIs" 



aOVERNMENT FEINTING OFFICE 



18 9 



