364 D. Jones — On the Carboniferous Deposits of Shropshire. 



but I have not yet found tliat any one has attempted the co-relation 

 of the strata. The points of nearest contact are not more than 

 three miles and a half apart. 



The Cornbrook deposits may be conveniently divided into the 

 following horizons, leaving out the Jewstone capping, which has 

 nothing to do with the question before us : — 



CORNBROOK DEPOSITS.— Section A. 



1. Base of Jewstone to Pennystone 



2. Pennystone Measure ... 



3. From Pennystone to Great Coal 



4. Great Coal 



5. Three Quarter Ironstone 



6. Three Quarter Coal ... 



7. Clumper (Blackbind with Ironstone concretions) 



8. Smith Coal 



9. 



Coal-measures 





10. 



Four-feet Coal 





11. 



Measures 





12. 



Gutter Coal,— 



Coal 



Clunch 



Coal 



Foul Coal 



Coal 



Foul Coal 



Under-clay 



Shale 



Coal 



13. 



Measures variable 





Millstone Grit 







27ft 



Gin 





6 









153 









5 



6 





3 









2 







") 



9 









3 



6 



",'.! ... 9ft 



.to 28 









3 







... 



404 







Oft. llin. 







15 







3 4 







3 







6 







3 







1 4 







6 







3 









30 



7 



10ft. 



to 20 







200ft. 



to 300 







Old Red Sandstone where the Carboniferous Limestone is absent. 



The Brown Clee Hill deposits rest upon Millstone Grit, though 

 I do not think it is more than 50ft. thick. The following section 

 will explain their character, and we shall see there is a considerable 

 difference in the lower portion from that of Cornbrook. Here we 

 leave out the Jewstone cap, and below it we have — 



Section B. 

 1. Jewstone Black Coal, — 



"Tops" ... ... ... 1ft. 2in. 



Black Shale and Fire-clay ... 1 



• Handful " Coal 4 



Clod 1^ 



"Bottoms" ... ... 1 4 



3ft. ll^ia. 



2. Thick Tough. Light grey Clod, containing Ironstone in 



lower part, varies in thickness from 6 to 12ft., say 9 



3. Black Bessie's Eyes (Lumpy, hard, grizzly stuiF, with 



black markings, rather rocky than cloddy) 



4. Dark-coloured Clod ... 

 6. Three Quarter Coal,— 



"Tops" ... ... 4 to 6 in. 



Clod 3 



Bottoms ... ... 1ft. 9 



6. Poundstone 



7. Clumpers ... 



8. Big Bat ... 



9. Clod 



10. Batty Coal,— 



"Handful" Coal Oft. 4in. 



Tile Piece ... ... ... 1 



" Tops " (Sweet Flaming Coal) ... 1 6 

 Cloddy Bat ... ... ... 10 



" Bottoms " (good for Blacksmiths) 2 6 



11. Coal-measures to Top Rock 



12. Top Rock to Level Rock ... 



13. Level Rock to Bottom Coal 



About 9 feet above the Bottom Coal, in some places, 

 is a rider of Coal, called "Foot" Coal, where it 



2 







2 







2 



6 



2 







3 







1 



6 



1 



3 



5 



3 



21 







21 







21 







