234 The Uppe7' Coal Measures 



Shale, 6 ft. ; coal, 10 in. ; fireclay, 10 iu. ; shale, 1 ft. 8 

 in. ; coal, 4 ft. 8 in. ; shale, 3 ft. ; coal, 4 in. ; shale, 3 ft. 



Near Cadiz the same section is repeated. In Jefferson 

 Co., the coal is frequently seen at the roadside but is so 

 degraded as to be worthless. It is little more than a bitumi- 

 nous shale, two to three feet thick. It may be the coal at 

 Knoxville one hundred feet above VIII, but is there not 

 more than eighteen inches. 



Coal IX likewise thins out before reaching the Ohio. It 

 is seen at numerous localities in Belmont, Harrison and Jef- 

 ferson counties, at varying distance above the Pittsburg and is 

 usually about two feet six inches thick, divided midway by 

 a thin clay parting. It is very persistent, rests directly on 

 limestone and being of no economical value, is interesting 

 chiefly because of its relations to the Pittsburg, which will 

 be considered farther on. It is thickest in its southeastern 

 prolongation and thins out toward the borders of the basin, 

 W. and N. 



Coal VIII c is known locally in Ohio as the Glenco Coal, 

 having been worked somewhat extensively at the station of 

 that name, on the Central Ohio railroad, where it is nearly 

 four feet. Along the railroad it retains its size to Belleair, 

 but from that point northward it diminishes rapidly, becom- 

 ing three feet along Wheeling creek and only fifteen inches 

 at Martinsville, five miles north from Belleair. In West Vir- 

 ginia, from Benwood to Wheeling it shows some singular 

 variations. Back of the furnace at Benwood it is eighteen 

 inches ; at the stone quarry, a short distance north, it is six 

 inches, with one foot of coal five feet above it ; at the lime- 

 stone quarry near South Wheeling, it is eight inches and the 

 upper bed concealed ; while at Wheeling it is one foot with 

 fourteen inches of coal six feet above it. Followed up the 

 north fork of Wheeling creek it becomes more important 

 and is mined near Triadelphia where it shows about three 

 feet of very fiiir cannel. The double character displayed 

 along the Ohio, on the Virginia side, is occasionally ex- 



