JASPEE COUNTY. 35 



The fossils found in the rotten limestone were: Athyris subtilita, 

 Chonetes mesoloba ? and Product/us longispinus. One mile and a half south- 

 •west of Harrisburg, on Lick creek, found the following beds : 



Ft. la- 

 Bluish argillaceous shale 10 



Black bituminous shale 4 



Impure limestone Tvith fragmentary fossils 6 



Bluish argillaceous shale 2 



The water of the creek is slightly saline, and some prospecting for 

 brine has been done in this vicinity." 



All the outcrops given on the preceding pages belong to the upper 

 Coal Measures, and range about the horizon of coals No. 14 or 15 of the 

 general section. From the general trend of the strata it may be inferred 

 that the lowest beds that outcrop in the county are those along its east- 

 ern border, and the highest those upon the western. 



Economical Geology. 



Coal. — A limited supply of coal may be obtained from the beds out- 

 cropping near Newton and New Liberty, but neither the average thick- 

 ness of the seams nor the quality of the coal they afford would justify 

 an attempt to work them except in a limited way. The main coals are 

 here from five to six hundred feet or more below the surface, and to 

 reach the bottom of the Coal Measures would require a shaft more than 

 a thousand feet in depth. It will probably be many years before the 

 demand for coal will be such in this county as to warrant the opening 

 of mines at this depth. 



Building Stone. — Building stone of good quality is not abundant, the 

 supply being mainly from the sandstone overlaying the coal at Newton 

 and in that vicinity. At some points this bed affords a brown sandstone 

 of fair quality, and at others it passes into silicious shales or shaly sand- 

 stones too soft and thin bedded to be used for building purposes. On 

 Limestone creek, in the south-western portion of the county, there is a 

 bed of compact gray limestone in layers of a foot to eighteen inches in 

 thickness, that is quarried for foundation walls, etc., for the supply of 

 the adjacent region. 



Lime. — The only limestone found in the county that seemed to be at 

 all adapted for use in the lime kiln, was that on Limestone creek in the 

 south-west corner of the county, and a fair quality of lime may be made 

 there for the supply of such portions of the adjacent region as are remote 

 from railroad tranportation. 



Sand and Clay. — These common and useful materials are abundant, 

 and good brick may be made at almost any point on the uplands where 

 they may be required. Sand for mortar and cement occurs at many 



