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 fiiagments 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 lying in very even courses 

 of suitable thickness. 



Similar courses are worked on the banks of Twin Creek, two miles 

 above Euphemia. 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 i n 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 inan- 

 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) : 



Carbonate of lime 55.20 



Cartiouate of magnesia 43.28 



Alumina and iron 0.60 



Silicious matter 0.60 



99.69 



