LICKING COUNTY. 353 



The following is a general section of the rocks exposed in the county : 



Fire-clay ten feet below top of hill. 



70 



tel^^^Si^S^^^ Chert, with quartz- crystals, "Flint Ridge" 2 to 8 



Coal thia, often wanting. 

 ^_^^_^_^_^^^^ Fire-clay 2 to 4 



JgsBSsBsgk^^ggs^fel Sandstone and sandy shale. 520 to 25 



Coal thin, often wanting. 



1^ 



I , i I I I I I 



^^■7'\ < 



Sandstone and shale . 



75 



BSyBSg i^^jSs B Limestone 4 to 14 



Coal, cannel or bituminous . 



3 to 5 



!^^^Hte^^HBIS| Ferruginous sandy shale 25 to 35 



Coal, outcrop. 



^=^^=^=^g^-^=>^l Sandstone and shale. 



20 

 2 to 3 



^^|»^^^^^™^ Coal thin, in places 



RwJ>?iS;g?i^-'iis% aa Fire-clay and shale 2 to 5 



iHSa^MM^lS! Consrlomerate 15 



Conglomerate 



Fine grained olive shaJes of Waverly 150 to 190 



40 to 60 



wsm^^i^m 



The number of this series found on the summit of most of the hills in 

 the south-east part of the county is the flint, which is ordinarily regarded 

 as on the horizon of Coal No. 6, the Great Vein of Perry and Hocking 

 counties, this coal being represented by the thin and worthless seam un- 

 derlying the flint. I am disposed, however, to regard the flint as the 

 equivalent of the " Black Marble," so-called, of Coshocton county — which 

 has beneath it a thin seam of coal, and is found in places only ten or 

 23 



