DELAWAKE COUNTY. 295 



separation between the blue Delaware limestone and the Delhi limestone 

 seems to cross the Scioto at or near Bellepoint, perhaps a little south of 

 that village. 



About three-quarters of a mile below Sulphur Spring Station, Wild 

 Cat Run joins the Scioto from the east. It is deeply and almost aston- 

 ishingly ' ut into the hard limestone beds, across which it keeps a fresh 

 section < f the layers finely exposed. At the top of the bluff, where one 

 reaches the general level by ascending the bed of this ravine (dry the 

 most of the year), Mr. Peter Burlet has a fine quarry in the Delaware 

 beds of the Corniferous. Near him Fred. Burlet has another. From the 

 latter there is a continuous exposure to the level of the Scioto, where 

 Mr. Richard Colvin's quarry and kilns for lime-burning are operated by 

 Charles G. Schmidt. Uniting all these exposures, the following section 

 may be made out, in descending order : 



Section at Colvin's Lime Kilns, near Bellepoint. 



No. 1. Blue, hard beds, of from 4 to 10 inches, of Delaware stone, 



seen in the quarries of Peter and Fred. Burlet 9 ft. 



" 2. Heavy layers of Delhi stone ; thin-bedded when weath- 

 ered. Sixteen or seventeen years ago these beds.were 

 extensively wrought for the abutments and piers of 

 the railroad bridge over the Scioto, near here. Very 

 heavy, large blocks were taken out, yet these layers 

 are generally seen but 3 or 4 inches thick where 

 weathered. Fred.' Burlet' s quarry is just on the top 

 of these layers, including 3 feet of the Delaware stone. 

 The ravine below Fred. Burlet's shows of these Delhi 

 layers about 28 " 



" 3. Bluish, hard, less fossiliferous, but having some large 



cephalopods; beds heavy 10 " 



" 4. Very fossiliferous with corals, particularly with a large, 

 massive, globular Favosites, with Stromatopora, Chsetetes, 

 and crinoidal remains ; the bedding becoming thinner 

 than in the last, and tortuous, with bituminous de- 

 posits and films. The color is brown, the stone much 

 softer than in No. 3 * 3 " 6 in. 



" 5. Six-inch beds of soft, bituminous, even-grained, mag- 



nesian limestone, with some chert, seen 6 " 



Total exposed 56 " 6 " 



Colvin's quarry is in the Delhi beds of the Lower Corniferous, near the 

 bottom. The common fossils are seen here in the usual abundance. The 



* Perhaps Nos. 3 and 4 should be in one, the fossils and bituminous matter varying 

 from one horizon to the other, causing the difference in lithological aspect. 



