540 GEOLOGY OF OHIO. 



Ft. In. 



16. Not exposed 8 



17. Nodular limestone (not measured). 



18. Notexposed 7 21 



19. Sandstone 20 



20. Coal (Anderson seam) 1 4 



(See Map XII., No. 14.) 



The coal, No. 14, in this section has been dug to a very limited extent, 

 but not very profitably. It was reported that, in boring for salt water at 

 Senecaville, a seam of coal three feet thick was passed at a depth of from 

 seventy to seventy-five feet below the lowest coal seam in the above sec- 

 tion. At about eighty feet lower, the Cambridge coal should have been 

 passed, if it has not thinned out in this direction. Good brine is re- 

 ported to have been obtained. 



A section was taken on the land of John Anderson, section 8, as fol- 

 lows : 



Ft. In. 



1. Coal, with shale roof 2 1 



2. Clay 1 



3. Coal 1 1 



4. Notexposed 18 



o. Fossiliferous limestone 2 



(See Map XII., No. 11.) 



The fossiliferous limestone is the equivalent of that found on the hills 

 west of Cambridg ■. 



The following analysis has been made of the Anderson coal by Prof. 

 Wormley : 



Specific gravity 1.294 



Water 1.70 



Ash 6.00 



Volatile combustible matter 35.70 



Fixed carbon 56.60 



Total 100.00 



Sulphur 3.13 



" left in coke 1.75 



Per entage of sulphur in coke 2.79 



Color of ash gray. 



Character of coke compact. 



Fixed gas per pound in cubic feet 3.12 



WILLS TOWNSHIP. 



This township lies north of the eastern part of Richland. The Cen- 

 tral Ohio Rail: oad passes along its southern boundary. At Campbell's 



