BUILDING STONE. 633 
microscopic sections, and some further remarks concerning its chemical 
composition and structure will be found in the general remarks that 
close this chapter. 
At Owen’s station, in the southern part of the county, there is a 
quarry in the Corniferous limestone from which over 9,000 tons of lime 
and, broken stone were shipped during the census year. Almost the 
‘entire output was used as furnace flux in the Hocking Valley. 
Six miles northeast of Marion, in the township of Grand Rapids, 
the same limestone is worked quite extensively. A ridge occurs at this 
point in which a number of quarries are located. | 
Crawford county is well supplied with building material. The lime- 
stones are quite well adapted for construction of foundations, but they 
are not at the present time extensively quarried owing ‘to a number of 
causes. There are no great demands for stone in this agricultural region, 
and the home resources are thrown into competition with the Berea grit, 
which is quite extensively quarried at Leesville, in the southeastern part 
of the county. In Holmes township, about 6 miles northwest of Bucy- 
rus, and near the Ohio Central railroad, three quarries are at present 
worked in the Corniferous limestone. The material has much the 
appearance of the Marion limestone, but, while it may be of the same 
quality, the courses are generally thinner and not so well bedded. 
In Lykins township the same limestone is also quarried to some 
extent. The material from all these quarries has been used for bridge 
building and for foundations, but it is more and more displaced by the 
Leesville sandstone, especially for bridge-building purposes. 
A large quantity of quicklime has been produced here which has 
been shipped from Nevada, in Wyandot county, by the Pittsburgh, Fort 
Wayne and Chicago railroad. 
For building purposes the limestone which is quarried from the 
Corniferous formation at Bloomville, Seneca county, has a higher repu- 
tation than the Helderberg limestones, and indeed it is said that these 
quarries produce one of the best limestones in northwestern Ohio. The 
material has been quite extensively used in Tiffin for many years for 
trimmings and stone fronts, and also for general building purposes in 
Mansfield and in the surrounding country. Good material for flagging, 
bridges, and foundations is quarried, and a slab 25 feet square might be 
obtained. It has already displaced in a measure at Mansfield the sand- 
stones which are quarried in that vicinity. 
