West of the Alleghany Mountains. 235 



hibited in Belmont Co., but never to any very marked 

 degree. 



The Setoickhj (VIII 6) is confined, in Ohio, to the neigh- 

 borhood of Wheeling. It may be seen on the National Road, 

 five miles west from the river and near Glenco on the Cen- 

 tral Ohio railroad. At Belleair it is only six inches thick 

 and at Bridgeport barely one foot. At Benwood, on the 

 Virginia side, it shows : 



Coal, 12J in. ; clay, 4^ in. ; coal, 8^ in. ; slaty coal, 5 

 in. Total, 2 ft. 3J in. 



From this point to Wheeling it runs about two feet, but 

 at Wheeling it is much degrr.dsd and shows bituminous 

 shale, 8 in. ; clay, 4 in. ; coal, 8 in. On Wheeling Creek, it 

 shows a very complex division. 



Coal, 1 in. ; shale, 1 ft. 3 in. ; coal, 1 ft. 1 in. ; clay, 3 

 in. ; coal, 10 in. 



It disappears under Wheeling creek about five miles east 

 from Wheeling. It reappears on Scott's Eun, in Monon- 

 galia Co., greatly increased in thickness and much changed 

 in character. W^here first seen above the ran, it is five feet 

 eight inches thick ; a short distance beyond, it is five feet and 

 on the bank of the Monongahela river it is six feet. At all 

 of these openings it is divided about midway by a layer of 

 cannel from two to six inches thick. On Robinson's Run it 

 is four feet six inches, with a clay parting midway and the 

 cannel layer only one foot from the bottom. At its eastern 

 outcrop near Laurel Hill it is only one foot thick, having 

 been torn away during the deposition of its overlying sand- 

 stone. It can be traced southward to the Baltimore and 

 Ohio railroad but does not retain its thickness. The coal 

 from this bed in West Virginia on the east side of the basin 

 is of remarkably good quality, containing only a minute 

 proportion of pyrites and showing little tendency to cake 

 upon the fire. 



In Pennsylvania, this bed is persistent within certain limits, 

 and varies from two to five feet in thickness. 



