410 | GEOLOGY OF OHIO. 
tology of the present volume as Encrinurus, occurs not infrequently in 
the Eaton beds, but is known only in fragments. The most charac- 
teristic, and, at the same time, the most common, of the fragments thus 
far found, is the highly ornamented pygidium. The same fossil, in the 
same state of preservation, is found at various points in the Niagara 
series of this quarter of the State, as at Yellow Springs, Springfield, 
Cedarville, etc. 
On Banta’s Fork, three miles from Eaton, excellent quarries are 
worked in the lower beds of the Niagara. The quarries yield an unusu- 
ally fine quality of flagging stone, the stone fying in very even courses 
of suitable thickness. | 
Similar courses are worked on the banks of Twin Creek, two miles 
above HEuphemia. Slife’s quarries are the largest here, and from them, in 
some years, nearly one thousand perch of building stone have been raised 
in a year. Some of the courses answer well for cutting, and all of the 
product finds a ready market in‘the quarryless regions to the east and north. — 
The most extensively worked quarries of the county are located at New 
Paris. The upper member of the Niagara series is well developed, and 
is easily reached. The building stone courses are also accessible. The 
main interest, however, is the production of lime. Large quantities of 
the best of lime are annually burned here, being distributed mainly to 
the westward by railroads leading out of Richmond, Indiana. Patent 
kilns are in use, and the business is economically and successfully man- 
aged. David Ireland manufactures three hundred bushels per day for 
eight months of the year, using one cord of wood for the burning of sev- 
enty-five bushels of lime. 
The quarries of Christian Disher, on the east side of Twin Creek, op- 
posite to Lewisburg, include, beside the building stone of the Springfield 
division, the lime-producing courses of the Cedarville section. Lime has 
been burned here for thirty years, and for the last few years the demand 
has largely increased, owing to the excellent character which the pro- 
ducts of these kilns have acquired in the blue limestone areas to the 
southward. It scarcely needs to be added that the lime is identical in 
character with that furnished by this whole section of the Niagara rocks 
in south-western Ohio, and of which the Springfield lime can be taken 
as the proper representative. | 
An analysis of Disher’s limestone is here appended (Wormley): 
Garbonaterof Aime i ois ey eee eNO Re) eal aenomae AIRS Ps  N P 55.20 
Carbonaterof magn esis cies Mi se led pe a AUER ar ap eeaad es se bps ata 43.28 
PAO Noy ral ats tre: 5 4(0 1x0) 1 PMN UME ne Ma aaT ey Migs MS CTRL a ge a 0.60 ' 
Silicious/ matters as... seh eee L ee ve aU eM Tae vA ANU SRE NSAI 2.8) 28 0.60 
