Lyman.] «J^O [>-ov. 2, 



12. Coal 3^ 



13. Sandstone and shale 20-30 



14. Coal, "Blacksmith" 2-3 



15. Shale 15-20 



16. Sandstone, " Tionesta ". . . 25-30 



17. Shale 25 



18. Coal If 



19. Sandstone 4 



20. Coal 1 



21. Shale 10 



Great conglomerate, Penna. 



No. XII about 350 



The following table of sections shows the coal beds and the intervals 

 between them at Peytona, and in several parts of the Lens Creek field, as 

 well as an average of the whole Lens Creek field, in comparison with the 

 corresponding beds of Prof, Stevenson's section for the northern edge of 

 the State, as just given. 



The columnar sections drawn on the two maps show the correspondence 

 of the coal beds still more clearly. ■ 



Identification op the Coal Beds. 



Comparing these sections with the sections given by Prof. I. C. White 

 in his Bulletin No. 65, it appears that the six-inch coal about twenty-three 

 feet below the Pittsburgh Bed at Peytona is the little Pittsburgh Bed of 

 Fayette county, Pa. ; the Slate Vein would apparently correspond to the 

 Little Clarksburg Coal, likewise slaiy at Clarksburg, W. Va. ; the three- 

 inch bony coal about 200 feet below the Pittsburgh Bed at Peytona (or 

 possibly the five-foot coal fifty-five feet lower) would correspond to the 

 Elk Lick Coal of the Pittsburgh, Allegheny County and Fayette County 

 region ; the six-inch bituminous coal at nearly twenty feet above the Upper 

 Cannel or Wood's Upper Coal, would be the Upper Freeport Bed ; the 

 Main Cannel, or Factory Cannel, would be the Middle Freeport Bed ; 

 Stevenson's coal bed No. 7 would be the Lower Freeport Bed ; the Shoot 

 Coal, or Wood's Lower Coal, or the Winifrede Coal, would be the Middle 

 Kittanning Bed ; the Blacksmith Coal would be the Lower Kittanning ; 

 Jerrold's Coal would be llie Clarion Bed ; and Vicker's Coal would be the 

 Brookville Bed. 



The leveling of the surveys was done partly with the vertical circle of 

 a transit, partly with a hand level and partly with an aneroid ; and 

 though not perfectly exact, was no doubt quite sufficiently so to confirm 

 the identification of the coal beds and to prove that the general sections of 

 the surveys agree very strikingly with the one of northern West Virginia. 



