JEFFERSON COUNTY. 747 



The section of the strata below the surface at Sloan's Station has been 

 revealed by a boring and shaft made for Messrs. Carlisle & Co., to reach 

 a thick seam of coal reported by several drillers to be something like a 

 hundred feet below the river. This was found to be mostly a mass of 

 shale, and of no economic value. 



The section of the shaft and boring is, according to Mr. W. W. Rogers, 

 as follows : 



FT. IN. 



1. Earth and gravel 53 



2. Fire-clay 3 



3. Blue shale 23 



4. CoalNo.3 3 4 



5. Fire-clay 9 



6. Hard blue sandstone 9 6 



7. Shale 8 



8. Sandstone 5 6 



9. Blue shale 23 



10. Shale 31 



11. Black shale 3 



12. Sand-rock to bottom. 



A somewhat different section of the strata at Sloan's Station was fur- 

 nished, I think, by Mr. Carlisle, from borings made previous to the sink- 

 ing of the shaft. It was copied on chart 3, published with Vol. I of this 

 report, and was as follows : 



rr. 



1. Earth and gravel 55 



2. Coal No. i 2 



3. Fire-clay 4 



4. Dark shale 22 



5. Coal iVb. 3 3 



6. Fire-clay 9 



7. Sandstone 22 



8. Shaly sandstone 20 



9. Soft, greenish clay 7 



10. Flaggy sandstone 21 



11. Dark shale 21 



12. Black shale — with gas 6 to 7 



13. Very hard sandstone 37 



Coal No. 3, at Sloan's Station, as shown by these analyses given at the 

 end of this chapter, is of unusually good quality. The fire-clay below it 

 is worked by Messrs. Connelly, Hood & Co., successors to Messrs. McFad- 

 den & Carlisle, for the manufacture of drain-pipe, etc. It is reached by 

 a slope at a perpendicular depth of about 60 feet. The upper coals at 

 Sloan's Station have not been thoroughly developed; that called Coal 

 No. 5, in the section above, is known in many places as the " Lime- 



