292 GEOLOGY OF OHIO. 
No. 3. The mass of the quarry: blue limestone, with some bands 
of impure chert; beds usually two to five inches, but 
sometimes ten to fourteen inches; contains Cyrlia, Dis- 
CNA SULGDROMENG SPUNUEn Grr nretens eenetae eee ee eee eee 16 feet. 
In the vicinity of Delaware are several other quarries in the same 
beds, viz. : : 
G. W. Campbell’s, a short distance north-west of Mr. Little’s, on the 
same section. 
Harris Allen’s quarry is about a mile south-east of Mr. Little’s, in the 
right bank of the Olentangy. It is on the same horizon, and presents 
the same features. At Mr. Allen’s quarry some blue flagging may be 
seen in process of decay under the action of water and frost, returning 
apparently to shale or clay, the fossils, Cyrtva and Sprirfera, becoming dis- 
engaged, producing a deposit that may be compared to the shale in 
which these fossils abound, and which has been termed Hamilton, where 
an outcrop oecurs in Erie county. This quarry aiso shows Tentaculites, 
the same as at the quarry of Mr. Kawlin, at Sandusky. 
Peter Zimmerman’s quarry is a little above Mr. Allen’s, but in the 
same layers. They both show a slight dip north or north-east. The same 
rock is more or less exposed in the river from Delaware to the mill, three 
miles below. Daniel Kline’s quarry is situated here, also Jos. Slough’s. 
The bed’s quarried by Mr. Little are exposed in the left bank of the 
Olentangy, about two miles above Delaware, on land of Matthis Kruck. 
They form here a rapid across the river, and have been quarried. They 
have also been a little wrought by Frederick Ziegler and Wm. Siegfried, 
as well as by Thoneas Slough, all adjoining or near Mr. Kruck. Stone 
from the river along here has been used in the construction of several 
farm residences and barns. Mr. Slough’s large mill is also built of it. 
The same or similar beds are seen in the Olentangy at the center of 
Troy township, and have been opened for building on the land of J. C. 
Main and of W. G. Norris. 
Peter Wiser’s land, on the right side of the creek, half a mile below 
the mouth of Norris Run, shows this stone, and it has here been opened 
also for quarrying. 
At Stratford there is ample exposure of the Hamilton beds similar to 
the section already taken at Mr. G. W. Little’s, though but little active 
quarrying. Several houses, barns, mills, and churches at Stratford vil- 
lage have been erected of this stone. 
About two miles below Stratford are James Bieber’s mill and quarry. 
