918 GEOLOGY OP OHIO. 



Valley. It is not largely worked even for neighborhood use in Clinton 

 township, nor in Vinton and Bloomfield townships, Jackeon county, be- 

 cause of the fact that the next seam above it, No. Via, is a heavier and 

 better seam in this district. 



In Madison and Jefferson townshipp, Jackson county, and in adjacent 

 townships of Gallia county, the coal remains thin, seldom at lea«t meas- 

 ureing three feet, but its quality is almost always good and is often ex- 

 cellent. This is the seam worked at Washington Furnace for smelting 

 purpo-es. It is here but twenty-six inches thick, but, its quality is 

 good and it is giving satisfactory results in the furnace- It is charred 

 before use. In Walnut township, Gallia county, it makes the Lower 

 Waterloo coal, a seam which yields over five feet of as good coal aa is 

 mined from this great horizon at any point in Ohio. 



Through the central part of Lawrence county, Coal No. VI is less con- 

 spicuous than coal No. V, though its place is generally shown and the 

 seam frequently becomes workable, but in Perry township again, and in 

 the region south of the Ohio River, it shows a thickness of four to five 

 feet and yields a great deal of excellent coal. As the Coalton or Ashland 

 Coal, it has a high reputation, being used in iron manufacture to a con- 

 siderable extent. The Perry township coal is called the Sheridan seam, 

 and this name holds, as has been already stated, as far north as Jackson 

 county. It may be remarked in passing that there is not the slightest 

 uncertainty in regard to the equivalence of the Sheridan and Coalton 

 Coals. No opjDosite sides of a river agree more perfectly than the Sheri- 

 dan and Ashland sections. The sections indeed are identical. 



10. The next seam to bs met. Coal No. Via, has never yet receired the 

 attention that it really deserves. It has been confounded generally either 

 with No. VI, or with No. VK. Its position is about half way between these 

 two coals. In the Hocking Valley, the usual measure is twenty-eight to 

 thirty feet above Coal No. VI. This measure is maintained with surpris- 

 ing steadiness through Viuton and Jackson counties. Thu=<, on the 

 Cawthorn tract, Monday Creek, the interval is twenty-eight feet. It is 

 the same on the Whitmore farm, just beyond Akron Furnace, and also on 

 J. L. Giil'a land, on Meeker Run, west of the Hocking River. On the 

 Ogan Hill, in Elk township, Vint in county, it is thirty-three feet. At 

 Eagle Furnace, it is twenty seven feet ; at Hamden Furnace, thirty feet; 

 at Iron Valley, the same, and also at Buckeye Furnace, and twenty-eight 

 feet at Keystone Furnace and at Hartley's Mills, Wilkesville township, 

 Vinton county, where it is known as the seven feet seam. It will be re- 

 membered that Coal No. VI is increasing its distance from the Gray Lime- 

 ione slowly, but steadily, throughout this last named region; but the 



