COAL WORKS PASSING THROUGH THE LOWER NEW RED SANDSTONE. 143 



Beneath these overlying beds the shaft at the Drillt traverses the coal measures as 

 detailed in this section. 



Section at the Drillt Coal Works. 



9. 

 10. 

 11. 

 12. 



13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 

 21. 

 22, 

 23. 

 24. 

 25. 



Hard rock bind, with black impressions of 

 plants (crows-feet of the miners) 



Coaly stuff. 



Grey crunch with "hemp-seed" stone 



Hard grey grits in parts pebbly, with coal 

 and impressions of plants 



Dark rock bind (shale) 



Ironstone 



Black shale bind 



Grey chinch. 



Red chinch 



Mushy or coaly shale 



Coal 



Fine stone, with black impressions of plants 

 mixed with pyrites, very hard on the top, 

 passes down into a white rock 



Black close-grained stone bind 



Black ironstone 



Dark bind 



Coal ... 



Dark shaly bind... 



White bind 



Blue bind 



Shale and Coal 



Clunch 



Blue bind 



Black clunch 



Blue bind with ironstone concretions. 



Grey clunch 



yds. ft. in. 



1 1 0 

 0 1 0 



2 0 9 



3 0 0 

 0 2 4 

 0 0 6 



0 2 4 



1 0 0 



4 0 0 

 0 2 2 

 0 0 6 



2 1 0 



0 0 10 



0 1 0 



0 0 1 



0 0 1 



0 1 4 



4 0 9 



0 2 9 



0 0 3 



1 1 0 

 1 0 0 



0 0 8 



1 0 6 

 1 1 10 



26. 

 27. 

 28. 

 29. 

 30. 

 31. 

 32. 

 33. 

 34. 

 35. 

 36. 

 37. 



38. 

 39. 

 40. 

 41. 

 42. 



43. 

 44. 

 45. 

 46. 

 47. 

 48. 

 49. 



Black shaly mush (impure coal) 



Grey clod or ricking 



Black shaly mush (impure coal) 



Grey clod 



Coal 



Clod 



Coals 



Grey clunch 



White bind 



Black bind 



Coal 



Black glossy shale with two beds of iron- 

 stone of four inches near the bottom 



Coal mixed with shale 



Hard grey clunch with ironstone 



Broad flaky bind 



Bind and sandstone mixed with ironstone 



Strong dark blue bind with plants and 

 ironstone 



Coal 



Pricking 



Fine clunch or fire clay 



Clunch mixed with ironstone 



Strong brown bind 



Bind, full of plants 



Coal 



yds. ft. in. 



0 0 6 



0 0 8 



0 0 6 



0 0 8 



0 0 6 



0 0 8 



0 0 6 



1 0 0 

 0 2 10 

 0 0 8 



0 2 3 



4 1 0 



3 0 3 



2 0 0 



3 0 0 



2 0 0 



3 0 0 



1 0 4 



0 0 5 



1 1 0 

 10 7 

 3 0 0 

 1 1 0 

 1 0 0 



Total of underlying coal measures .... 64 0 5 



The two coal beds printed in italics are in use. They are both thinner here than 

 at the old pits, particularly the lower coal, which from six feet near the outcrop, has 

 thinned away to three feet upon the dip. 



The other and newest shaft section, though differing in some respects, agrees in all 

 essential points, and it is therefore unnecessary to load these pages with the details. 

 Further observations respecting the probable extension and value of these seams of coal, 

 will be found at the end of the account of this field, the lower rocks of which, or those 

 unproductive of coal, we first proceed to consider. 



Millstone Grit and Sandstone, (c, d and e of section, PI. 30. fig. 14.). — The rocks 

 composing this formation are very largely developed in the environs of Oswestry, rising 

 into broad ledges between the productive coal-field and the higher hills of limestone, 

 from whence they sweep down to the lower country in the promontory of Sweeny 

 Mountain on the east, and in the hills of Oswestry racecourse on the west, thus folding 



. s2 



