White.] 



486 



[Oct. 20, 



beds at the junction of l^o. XI, with the former, exhibiting the following 

 in descending the steep east bluff of the river (Sec. 6) : 



Conglomerate, very massive 100' 1 -^^ ^jj 



Sandstone, coarse, few pebbles 50' 



Shales, sandy, buff, containing some I. O -20' 



Sandstone, massive, buff 10' 



Shales, yellow, and green, containing I. O. . . 30' 



Sandstone, greenish, somewhat flaggy 140' 



Layer of breccia, calcareous 2' 



Sandstone, green, flaggy 20' 



Layer of breccia, calcareous 1' 



Shales, red and green 45' 



Limestone, impure 10' 



Bed shales, and flaggy sandstone 45' j 



Mountain limestone 100' 



" Silicious limestone," and Pocono sandstone. .125' > No. X 

 Concealed to level of Cheat river 450' > 575' 



180' 



og 



)■ 293' 



I was at first disposed to place the line between Nos. XII and XI at the 

 base of No. 2 in the above section, but the massive yellowish sandstone, 

 No. 4, so unlike anything usually found in No. XI, determined its base as 

 the true dividing horizon between the two series. This is also confirmed 

 by the thicknesses which result from placing it there, viz. : 180' for XII and 

 293' for XI shales, which are almost exactly the same as found for each in 

 Sec. 2. 



The "Silicious limestone" is 10'-15' thick at this locality and as usual 

 passes insensibly into the great sandstone deposit below. 



A few rods further south from the last locality another measurement of 

 the beds gave this result (Sec. 7) : 



1. Massive, pebbly sandstone 150' ) No. XII. 



2. Shales and shaly sandstone, buff 35' > 



3. Shales, greenish, sandy 30' ") 



4. Sandstone, greenish-gray, flaggy 90' 



5. Bed and green shales, 12' 



6. Sandstone, greenish, massive at top, flaggy 



and shaly below 65' 



7. Brecciated limestone 2' 



8. Bed and green shales 25' 



9. Blue sandy shales, and green flaggy SS. . . 25' 



10. Limestone, impure, fossiliferous 10' 



11. Red and green shales and sandstone 40' 



13. Mountain Limestone 



185' 



QS 



299' 



