1865.1 35 [Lesley. 



to be much larger and better than is now known, for the 

 country is in so wild and undeveloped a condition, and the 

 coal-beds of the Lower Coal Measures, to which these beds 

 belong, are so variable, that they may be expected to present 

 different aspects of size and quality on every different hillside. 

 The following scheme of the beds, showing their Kentucky 

 and their Pennsylvania names in opposite columns, will be 

 useful to enable one to understand them without confusion: 



Top Hill Sand Rock =: The Mahoning Sandstone. 



Coal No. 4 = Pomeroy Coal = Upper Freeport Coal. 



Coal No. 3 = Coxe'sW. Liberty = Lower Freeport Coal. 



Middle Sand Rock = The Freeport Sandstone. 



Coal No. 2 = Main Peach Orchard = Kittanning Coal. 

 Coal No. 1, C == Clarion Coal. 



Coal No. 1, B = Wheeler's ? = Brookville Coal. 



Coal No. 1, A = Tionista Coal. 



MILLSTONE GRIT := No. XII = THE GREAT CON- 

 GLOMERATE. 



Coal Sub-conglomerate ; = No. XL Coal. 



A few of the hills, being capped by the Mahoning Sand- 

 stone, contain all seven of these horizontal layers of coal ; 

 but the majority of the hills are only high enough to take in 

 Coal-bed No. 2, the Kittanning bed. 



It seems to be well made out, especially by the labors of 

 Mr. Lesquereux, that the Coal Measures become thicker, and 

 the coal-beds larger and farther apart, as one pursues them 

 from the Licking Waters, in Magoffin and Morgan Counties, 

 eastward, across Paint Creek, Jenny's Creek, and Louisa 

 Fork, towards Tug Fork and the Virginia country. The 

 accompanying diagram, Fig. 2, gives three of Lesquereux's 

 comparative sections: one at West Liberty; one at Peach 

 Orchard, on Louisa Fork; and one at Warfield, on Tug 

 Fork of Sandy. 



The Main Coal of the Peach Orchard mines, 5| feet thick, 

 seems to be the same bed with that mined on Paint Lick 

 Creek, Wheeler branch, a mile or two west of Paintsville, at 



