TENNESSEE 143 



them only 125 feet thick in western and northern Fentress. The Corbin 

 sandstone, then, is the bottom prominent sandstone of the Wartburg, 

 above which should come the Sharon and Mercer, or Upper Pottsville. 

 The upper or great sandstone of the Wartburg holds the place of the 

 great sandstone underlying the Hunnewell or Tionesta coal bed of Ken- 

 tucky and Ohio, and that coal bed is to be looked for in the important 

 bed reported by Mr Keith at the bottom of the Scott shales. In Fen- 

 tress, except at the extreme east, in the western third of Morgan, and in 

 northwest Scott, rocks higher than the Rockcastle are practically want- 

 ing ; in eastern Morgan and Scott the surface rocks are mostly Briceville, 

 though, especially in Morgan, considerable areas of Wartburg and in- 

 significant areas of Scott remain. In Anderson and Campbell, reaching 

 to the eastern escarpment, those higher groups remain in considerable 

 patches, but at 2 or 3 miles back from the escarpment. 



The Lee conglomerate thickens very rapidly toward the east. At 

 Rugby, in the extreme north of Morgan, where the Bonair is 80 feet, a 

 boring showed for the whole a thickness of about 500 feet, while at 

 Rugby road, 7 miles south-southeast, it is 700 feet, the increase being 

 chiefly in the Bonair and underlying beds, which are represented by 

 250 feet of sandstone and conglomerate, suggesting that the Etna (Cliff) 

 conglomerate has been reached in this direction. The interval between 

 Rockcastle and Bonair in this boring is about 350 feet. The Rockcastle 

 is a sandstone, not showing the conglomerate features characterizing it 

 farther toward the west and northwest. 



Professor Bradley's section on Coal creek, in Anderson county, is the 

 only one embracing the whole column as found in the area ; it was 

 merely preliminary, having been made during a rapid examination for 

 economic purposes, so that it is lacking in detail. A partial section at 

 Coal creek is given by Mr Keith, and another was made by Professor 

 Safford at 3 to 5 miles west from Coal creek. This last, though meas- 

 ured under serious disadvantage, gives important details which are 

 wanting in the others and enables one to reconcile the apparent discrep- 

 ancies. The section by Professor Bradley is given here with very little 

 condensation. 



Feet. Inches. Feet. Inches 



1. Shale and sandstone 200 



2. Coal bed U. 6 



3. Shale, Cliff sandstone 80 



4. Coal bed T. 1 8 to 1 



5. Interval 20 



6. Coal bedS 3 3 



7. Shales 10 



8. Coal bed R 1 



