510 GEOLOGY OF OHIO. 



tributary of the Muskingum. The high lands are unusually rich and 

 fertile, from the abundant limestone. 



The Cumberland seam of coal seen at Cumberland, in Guernsey county, 

 a little north of the Brookfield township line, has been traced into Mus- 

 kingum county, where its relations to the Pomeroy seam are ascertained. 

 This appears on Map No. X., accompanying Vol. I. of the final report 

 of our survey. 



A mile south of the village of Cumberland we find, in Brookfield town- 

 ship, the Cumberland seam of coal at the mines of H. C. Hunter, Esq. 

 In the hills south or south-east from these mines a section was taken, 

 revealing the limestones and other strata above the coal. Other sections 

 were taken to the east of Cumberland, showing the strata for two hun- 

 dred and thirty-five feet below the coal. In a south-east direction from 

 Cumberland the coal seam was found for three miles to rise at about the 

 rate of thirty feet per mile. The full section taken near the north line 

 of Brookfield township and in that vicinity is as follows : 



Ft. In. 



1. Limestone 2 



2. Not exposed 19 



3. Limestone 1 6 



4. Not exposed 10 



5. Limestone 1 



6. Shale 15 



7. Limestones and shales 25 



8. Not exposed 10 



9. Sandstone 10 



10. Shale 10 



11. Coal 1 6 



12. Slate parting, one-half inch. 



13. Coal 1 2 



14. Slate parting, one-half inch. 



15. Coal 1 10 



16. Not seen 3 



17. Limestone 2 



18. Not exposed 31 



19. Sandstone of good quality, quarried 15 



20. Not exposed 30 



21. Bufl limestone 1 6 



22. Not exposed 15 



23. Coal blossom. 



24. Interval to Ames limestone 136 



(See Map XII., No. 7.) 



Four samples of coal were taken from the Hunter bank for analysis- 

 No. 1 from near the bottom, No. 2 from upper part of the lower bench, 

 No. 3 from middle bench, and No. 4 from top bench. 



