o " 

 O O 



It 



h 



^ 



X 



r 



I 







Potsdanu 

 •• Trenton. 



Hudson Eirar, 

 Oneida. 

 .. Niagara. 



L. HelderberR, 

 Oriskany. 



Comiferous. 



|.. Chemung. 



Carb. Conglomeratou 



<■ Carboniferous 

 (.Limestone. 



Coal Formation. 

 Permian Conglomerate. 



Magneslan Limestone^ 



