SECOND GEOLOGICAL SURVEY OF PENNSYLVANIA. 

 REPORT OF PROGRESS 



F 2 . 



A PRELIMINARY REPORT 



PALAEONTOLOGY 



PEERT COUNTY, 



DESCRIBING 



THE ORDER AND THICKNESS OF ITS FORMATIONS 



ITS FOLDED AND FAULTED STRUCTURE. 



E. W. CI 





YPOLE. 



XLUSTRATED BY 48 PAGE PLATES OF MAPS AND SECTIONS; A COLORED 



GEOLOGICAL MAP OF THE COUNTY PRINTED IN 1879; AND 



A COLORED GEOLOGICAL MAP OF THE COUNTY 



BY E. W. CLAYPOLE IN 1883. 



HARBISBURG: 



PUBLISHED BY THE BOARD OF COMMISSIONERS 

 TOE THE SECOXD GEOLOGICAL SURVEY. 



1885. 



