BELMONT COUNTY. 287 
ville cement obtained from this rock has no superior among the cements 
manufactured in our country. This layer is present throughout the 
county, except in the north-west, and invariably presents the same physi- 
eal character. Underlying Coal No. 8), on the river, is a limestone which 
yields a good hydraulic lime. 
Marl.—The calcareous shales interstratified with the limestones under 
Coals Nos. 8b and 9 will prove useful as marls. The analysis of one of 
these has been given (Pease township). 
Fire-clay.—The clay from below the coals is usually too ferruginous to 
be of any value. The deposit in Pease township may prove valuable, 
but the analysis is not encouraging. Clay for bricks is obtained from the 
subsoil. 
Water.—The county is well supplied with water for all purposes. 
