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CRAWFORD COUNTY. 245 
the most noticeable fossil. Although the stone, so far as explored, here 
appears rather slaty, it would probably become thicker and very useful 
for common building on reaching the undisturbed bedding. The situa- 
tion of this outcrop demonstrates either a wide detour westward of 
the boundary line separating the geographical areas of the Corniferous 
and overlying shale, or an isolated area of Corniferous surrounded by 
the shale, since it is sufficiently certain that the black slate underlies 
the city of Bucyrus. On the other hand, the Bucyrus area of black slate 
may be an outlier only, surrounded on all sides by the underlying lime- 
stone. Besides the places above mentioned, there are many indications of 
_ the occurrence of the Upper Corniferous in the bank of the Sandusky, on 
the S. E. + section 24, in Dallas township, on the land of Mr. McNeal. 
A little below Mr. McNeal’s, in the same section, flat stone, answering to 
the Upper Corniferous, was taken out of the bed of the Sandusky in 
small quantities, about twelve years since, on land now owned by Mr. 
James Kchart. 
The Lower Corniferous is also exposed in the Broken Sword Creek, 
and at Benton, in the Sycamore Creek. At the latter place it is worked 
a little by Mr. Benjamin Kuntzman and Mr. Martin Stoertzer. It may 
be seen more or less in the bed of the creek between Benton and the 
county line. Throughout this distance the exposures are so meager, 
owing to the prevalence of the Drift, that the rock cannot be seen except 
where the water actually runs, and no reliable section can be obtained. 
It is a coarse-grained, dirty, fossiliferous, and magnesian limestone, with 
considerable bituminous matter, in beds varying from six to twenty 
inches in thickness, suitable for abutments and heavy walls. Near 
Oceola the Lower Corniferous is considerably exposed, and is quarried for 
general building stone and for quicklime. The following quarries are in 
the Lower Corniferous at this place, viz., those of John Schnavely, David 
Schnavely, widow Schnavely, Luther M. Myers, Dennis Coder, Gotleib 
Doerer, and Joseph B. Christie. Of these, John Schnavely’s and Mrs. 
Schnavely’s are in the upper portion of the Lower Corniferous, the princi- 
pal fossils of which are brachiopods. The stone is light-colored and crys- 
talline, appearing somewhat saccharoidal, in beds of about three inches. 
The lime made is nearly white, but slightly creamy. The quarries of 
Messrs. Myers, Coder, Doerer, and Christie are in lower beds. The stone 
of these quarries, when fossiliferous, is characterized by a profusion of 
corals, with very few brachiopods. It is bituminous and also magnesian, 
harsh to the touch, appearing often much likea sandstone. It isa much 
darker colored stone than that of Schnavely’s quarry, but the lime made 
from it is equally white. Large portions of the stone are perfectly free 
