292 GEOLOGY OF OHIO. 



No. 3. The mass of the quarry : blue limestone 1 , with some bands 

 of impure chert ; beds usually two to five inches, but 

 sometimes ten to fourteen inches; contains Cyrlia, Dis- 

 cina, Strophomena, Spirifera 16 feet. 



Total 20 " 



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, Cyrtia 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 occurs in Erie county. This quarry also 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 Thomas 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. 



