526 GEOLOGY OF OHIO. 



Volatile combustible matter 1 35.50 



Fixed carbon 52.10 



Total 100.00 



Sulphur 6.61 



Permanent gas per pound in cubic feet 3.26 



Ash Fawn color. 



Coke •"• '*• Compact. 



The seam of coal from Mr. Collins's dips rapidly down the East Pork 

 of Duck Creek. A mile above the mouth of Road Fork 'the seam is only 

 twenty-five to thirty feet above the stream, while three-fourths of a mile 

 up Road Fork the seam is ninety feet above the latter stream. These 

 facts show local undulations in- the strata. 



ELK TOWNSHIP. 



This is the south-eastern township of the county. It lies chiefly upon 

 the waters of the East Fork of Duck Creek, but in the southern part are 

 some of the sources of Pawpaw Creek. The land is generally hilly, but 

 the limestone layers in almost all the hills tend to render the soil fertile. 

 The principal seam of coal is the Cumberland seam, which is every 

 where to be found in its appropriate geological horizon. In section 25 

 the following geological section was taken : 



Ft. In. 



1. Blossom of coal. 



2. Not exposed 15 



3. Limestone 1 6 



4. Not exposed 22 



5. White limestone 3 0- 



6. Not exposed 48 



7. Sandstone and sandy shale, somewhat ferruginous 12 



8. Blue, sandy shale 2 



9. Coal, Cumberland seam 2 



10. Clay, " " 1 8 



11. Coal, '' " 3 6 



12. Underclay 5 



13. Limestone 2 



14. Not exposed 53 



15. Magnesian and blue limestones 5 



(Map XII, No. 36.) 



On the land of Lewis Uhlman, near Harrietsville, the same seam of 

 coal appears in the following section : 



Ft. In. 



1. Sandy shale 5 



2. Coal 2 3 



3. Clay 10 



