38 ECONOMICAL GEOLOGY. 



the horizon of another coal, which had been broken up and re- 

 deposited along with the bituminous shale and sandstone with 

 which it was associated, find it probably represents the horizon 

 of coal No. 7 of the general section. Coal No. G is the seam 

 being worked here at this time, and it affords a product of fair 

 quality. A heavy flow of salt water issues from the white sand- 

 stone No. 18, which is here a hundred feet in thickness. 



A boring at Greenville, the county seat of Bond county, re- 

 ported five and a half feet of coal at a depth of 488 feet from 

 the surface. At this point the drift was found to be 200 feet in 

 thickness, consisting largely of sand and gravel with so great 

 an amount of water percolating through it that the parties in- 

 terested were deterred from attempting to sink a shaft for the 

 present. For the following record of this boring I am indebted 

 to the Hon. J. P. Slade of Greenville: 



Ft. In. 



1. Surface clay and soil 10 



2. Sand and clay 20- 



3. Coarse sand 10 



4. Gravel 20 



5. Conglomerate 90 



6. Clay and sand 20 



7. Sand 8 



8. Light colored clay and sand 8 



9. Dark colored clay and sand 18 



10. Gray limestone 5 



11. Hard black slate 5 



12. Light and dark shales 77 



13. Sandstone and sandy shale !9 



14. Clay shale 17 



15. Sandy shale , 5 



16. Clay shale 27 



17. Limestone 1 



18. Clay shale 5 



19. Limestone 9 



20. Clay shale and green clay 10 



21. Black fault 5 



22. Clay and sandy shales 10 



23. Limestone 3 



24. Clay shale 4 



25. Limestone 2 



2C. Coal 5 G 



27. Shale... 7 



Total depth 500 6 



It is probable the coal seam at the bottom of this boring is 

 No. 6, and the stratum numbered 21, which is described in the 

 record as a black fault, represents the horizon of coal No. 7. 



