42 P. "'KPORT OF PROGRESS. E. W. CLAY POLE. 



of them. Exposures of the Devonian shales and sandstones 

 are ample and numerous ; exposures of the Utica shale for 

 example on the other hand are few and scanty; but on the 

 whole no county in the State presents a more instructive 

 field to the palaeontologist. 





