BUILDING STONE. 595 
the bed of a stream, and only the thin layers are extracted. The 
amount of flag-stone that may be quarried in this vicinity is practically | 
’ inexhaustible. At present the material is carried on wagons 2 miles to 
the nearest railway shipping-point, and a considerable portion of the 
product of the quarries is-carried on wagons to the town of Galion, in 
Crawford county, which is the principal market for the stone quarried 
in the northern part of Morrow county. | 
The thickness of the heaviest layers in the county is only about 23 
feet. 
The Berea grit crosses the eastern part of Delaware county, and at 
Sunbury quite important quarries have been developed. It has here 
been worked to the depth of abont 20 feet, as deep as natural drainage 
is available. Good building stone might be obtained below this depth, 
but artificial drainage would be required. This material bears a close re- 
semblance to the Euclid “blue-stone” of northern Ohio. The layers vary 
in thickness from 3 inches to 3 feet. The thin layers are quarried for 
flagging stones, and the heavy ones for general building purposes and 
to some extent for ornamental work. The material finds its principal 
markets at Delaware, Mount Vernon, Columbus, and Orrville, Ohio. 
Examples of it may be seen in the building of the Ohio Industrial 
Home for Girls in Delaware county, and in the National Bank building 
at Delaware. 
The sandstone of the Berea grit in the eastern part of Franklin 
eounty has considerable local value, because on each side of its outcrop 
the surface of the country is occupied by a belt of shale from 8 to 10 
miles in width, the belt on the west being entirely destitute of building 
stone and the one on the east is nearly so. The formation has, how- 
ever, in this part of the State lost many of the valuable qualities which 
characterize it in Erie, Lorain, and Cuyahoga counties. On account of 
its accessibility, however, it has been used quite extensively in Columbus, 
the Ohio Institution for the Blind being constructed of it as well as 
several stone fronts. 
The entire product of a quarry 10 miles east of Columbus is sawed 
at the quarry for caps, sills, ashlar, etc., and shipped to various points 
along the lines of the Baltimore and Ohio and Pan-Handle railroads, 
but principally to Columbus. 
The greater portion of the surface of Licking county is occupied 
by the rocks of the Waverly formation, but a portion of the eastern 
