UNION COUNTY. 329 



stone or a clean quartz grit, has the character of a conglomerate in Union 

 county, consists in the appearance of that character near the county 

 line, in Mill Creek, as already mentioned in the report on Delaware 

 county. It there contains water-worn pebbles of the underlying Water- 

 lime, which are sometimes two or three inches in diameter. The whole 

 thickness is not more than two feet. 



The Waterlime. — This limestone is so named from its known hydraulic 

 qualities, in other States as well as in some places in Ohio. It appears 

 in outcrop in widely separated parts of the county, and probably is the 

 surface bed-rock throughout the most- of the county. The quarry of Wm. 

 Ramsey, in the bed of Mill Creek, in Mill Creek township, although not 

 now in operation, is sufficiently developed to show the Waterlime char- 

 acters. Aaron Sewell burns a little lime here. The foundation for the 

 old court-house at Marysville was taken out here. The stone is in beds 

 of about four inches, but is wavy. Some of it is brecciated. The creek 

 has excavated about ten feet in this limestone along here, the overlying 

 Corniferous receding from the stream on both sides. This narrow belt 

 of Waterlime extends northward and makes, probably, an isolated out- 

 lier of Corniferous which occupies part of Dover township, and crosses 

 Scioto, in Delaware county, from near Millville, south-westerly. The 

 Waterlime also is exposed on Ingham Wood's land, one mile north-west 

 of Pharisburg, in Boggs's Creek ; also on John Grandy's, near Wood's, as 

 well as on the next farm above, Peter Jolliff's. It occurs again on John 

 Gray's and Alfred Davis's land, half a mile north of Byhalia, in the bed 

 of Little Rush Creek. At York Center it appears on Aaron Shirk's 

 and Hiram Watts's land, on the north side of Boggs's Creek. On the 

 south side of the creek it also affords good exposures on the land of 

 Montreville Henry, John Timons, John Shirk, and Finley Davis, where 

 it has been burned some for lime by Mr. Shirk ; but it is not now 

 wrought. It is mainly a surface exposure in the bed and low banks of 

 the creek. 



At Unionville the Waterlime appears in Big Darby Creek. It was 

 recently opened for lime by F. J. Sager and J. C. Robinson. The beds 

 are from four to eight inches thick, and fine-grained. This is said to be 

 underlain by a blue clay which is four feet thick. It also occurs two 

 miles above Unionville, on James Martin's land; and a mile further 

 down, on land of Elijah Mitchell. It was formerly wrought a little on 

 the land of Mr. Sager, three-fourths of a mile below the village, where 

 the beds were from four to eight inches. It also is seen on H. Penning- 

 ton's land, just below Mr. Sager's. 



The Drift. — This deposit in Union county shows evidence of more re- 



