212 



GEOLOGY OF OHIO. 



The coal in the lower portion is hard and compact, and is in high re- 

 pute among blacksmiths. In the bank of Mr. William Holmes, on the 

 road from Hopedale to Miller's Station, the intimate structure of the bed 

 is very well shown. We there find : 



FT. IN. 



Koof-coal 3-8 



Fire-clay 6-8 



Coal 2 1 



Parting 1 



Coal 1 3 



Parting, with pyrites -. 1 



Coal (seen) 1 



Specimens from Mr. Allison's bank were analyzed, with the following 

 results : 



TOP. MIDDLE. BOTTOM. 



Specific gravity 1.295 1.278 1.253 



Moisture 2.50 2.60 2.20 



Ash 5.20 5.45 5.20 



Volatile combustible matter 33.50 31.40 32.20 



Fixedcarbon 58.80 60.55 60.40 



Totals 100.00 100.00 100.00 



Sulphur 3.32 2.30 2.26 



Sulphur left in coke 1.75 1.19 1.45 



Sulphur forming of the coke 2.75 1.80 2.22 



Fixed gas per pound, in cubic feet 3.40 3.64 



Ash FawH. Gray. Gray. 



Coke — Coiripact. 



In German township the coal is extensively worked in the neighbor- 

 hood of Jefferson to supply a large district of country. No workable bed 

 being known in North or Rumley, or in the adjoining portions of Carroll 

 or Jefferson counties, coal is drawn from Jefferson to meet the demand. 

 At Mr. Hibbs's bank, near Jefferson, the roof-coal is not exposed, but the 

 lower coal gives the following section : 



FT. IN. 



1. Coal 1 9 



2. Parting i 



3. Coal 6 



4. Parting 1^ 



5. Coal .■ 1 2 



6. Parting i 



7. Coal 1 2 



4 9i 



The coal is traceable south from Jefferson into Green township, and is 

 worked at various points. At a short distance north from the tunnel, 



