252 F2. 



Tlale XXVII. 



Mzrcellus limestone. 

 Centre Mills section. 



limestone. 



dark shale ) . 7 7 , . 

 and \ inter 'bedded. 



limestone J 



MMpp 





4 dark' shale. 



Vo 



qreen calc. shales. 



greenis/i smooth shale. 



Jfo.3 

 jYo.Z 



1'i'in -•' 



ia 



oolitic flint hcols. 



'■-A'o.i.J 

 slaty purple Iron ore . 



ORISKANY SANDSTONE. VI! 



F2 



