1865.] 



67 



[Lesley. 



thick coal-bed, corresponding to the large coal-beds of the Freeport 

 series, is very remarkable. 



Record of Boring at Superior Iron-worlcs at Manchester, adjoining 

 Alleghany City, opposite Pittsburg, McClure Township, Alle- 

 ghany County, Pennsylvania. 



Mr. Chase has obtained the following record of a Salt Well bored 

 in 1840-1, at Latrobe, in Westmoreland County, on the Pennsyl- 

 vania Kailroad, 30 miles east of Pittsburg. It is called Saxman's 

 Salt Well, and has been long abandoned. The Pittsburg Coal-bed, 

 8 feet thick, lies 10 feet above the level of the mouth of the well : 

 Soil, &c., ....... 



Slate rock, blue, soft, 



Sandrock, blue, close, 3 ; somewhat softer, 8, 

 Slate rock, sandy, blue 2 ; slate, blue, 5, . 

 Sand rock, blue, 7 (white flint 2 inches), . 

 Black, slate-like coal, 1"10, 

 Limestone, with some ore and mud veins. 

 Slate and sandrock, mostly blue, some almost black, silvery sand 

 came up, gas rein struck at 85,, 10, which boiled for ttoo hours 

 and then stopped, ........ 



