208 GEOLOaY OF OHIO. 



ferous shale, in alternate layers, very thin, with a total thickness of seven 

 or eight feet. On^the other side of the hill the coal has entirely disap- 

 peared, and the iron is found in a compact layer of nodular ore one foot 

 thick. In Nottingham it has been opened on Mr. J. Ramsay's property, 

 four miles east from Deersville, on the road to Cadiz, where it exhibits 

 the following section : 



FT. IN. 



Coal 1 8 



Clay 1 



Coal 1 8 



Shale ,-- 6 



Limestone 4+ 



The clay parting thins out as the bed is followed into the hill, but the 

 coal does not increase in thickness. The material yielded at this open- 

 ing is exceedingly hard, breaks with a conchoidal fracture, and is of a 

 dull black appearance. Though it burns readily, it can hardly be called 

 coal, but is rather a very compact bituminous shale, which resists the 

 action of the weather. It is probably altogether worthless, and at all 

 events can not be profitably worked, for Coal No. 8 is found in the same 

 hill one hundred and forty feet above it. This coal was not observed in 

 German or Rumley townships. 



The strata between this horizon and Coal No. 8 are subject to great varia- 

 tion. The following section was obtained on the road from Cadiz to Adena : 



FT. IN. 



1. CoalNo.8 8 



2. Sandstone, -svith thin limestone 40 



3. Limestone 4."i 



4. Sandstone and shales 55 



5. Coal 1 



6. Sandstone 8 



7. Crinoidal limestone 6 



Another section was obtained on the road from Georgetown to New 

 Athens, as follows : 



Ff. IS. 



1. CoalNo.8 - — — 



2. Limestone H 



3. Sandstone '20 



4. Limestone 6 



5. Sandstone 90 



The section at the tunnel, near Cadiz .Junction, on the Pittsburgh, Cin- 

 cinnati and St. Louis Railway, is as follows : 



FT. IX. 



1. CoalNo.8 — — 



2. Sandstone 14 



3. Limestone 4 



4. Sandstones and shales 115 



