T. C. Cantrill — Goal-boring at Presteign, Radnorshire. 487 



The boring (Fig. 2), which was begun on April 9, 1912, and 

 abandoned in the following autumn, is situated on the Wenlock 

 Shales, a few yards north of the outcrop of the Woolhope Limestone. 

 The following is the complete record as furnished by the firm who 

 carried out the work ; for the classification and grouping of the beds 

 and for notes in square brackets the responsibility is mine : — 



Boeing for Coal at Folly Farm, Prksteign. 



New Series 1 in. Ordnance Map, Sheet 180 (Knighton) ; 6 in. Map, 

 Radnorshire, 25 N.E.; Geological Map (1 in.), 56JST.E.; lat.52° 15' 54", 

 long. 3° 0'2". Boring commenced April 9, 1912, abandoned before 

 October 7, 1912. Dip 55°, decreasing downward to 20°. 



Wenlock Shales : — 



1. Yellow clay [sandy, full of stones] 



2. Soft yellow grey shale . 



3. Soft grey shale 



4. Grey shale and hard balls 



5. Grey shale .... 

 Woolhope Limestone and Shales : — 



6. Grey limestone, broken {Woolhope Limestone] 



7. Grey shale with hard balls of limestone . 

 Upper Llandovery Sandstone : — ■ 



8. Hard red grit with soft joints 



9. Bed-grey sandstone with lime and white pebbles 



10. Eed-grey sandstone with pebbles and vertical joints 



11. Eed-grey sandstone with shale and pebbles 



12. Eeddish-grey sandstone ..... 



13. Eeddish-grey sandstone with pebbles and pieces o 



grey shale ....... 



14. Eeddish-grey sandstone and pebbles 



15. Grey shaly sandstone and pebbles . 

 Longmyndian (?) : — ■ 



16. Eed-grey sandstone with pebbles and beds of green 



grey sandstone ..... 



17. Eed-grey sandstone with white joints 



18. Hard red-grey sandstone with white joints 



19. Soft grey sandstone .... 



[Fatclt] 

 Wenlock Shales : — 



20. Soft grey shale ..... 



21. Grey shale with spar veins 



22. Grey shale with white spar veins [Phacops longi- 



caudatus and Monograptus~\ 



23. Grey shale with spar veins 



24. Grey shale with spar veins and partings . 

 ,25. Grey shale with white spar veins .• 



26. Grey shale with spar veins and partings . 



27. Grey shale 



28. Grey shale with 3 in. bed of sandstone . 



29. Grey shale 



30. Grey shale with sandstone 1 inch thick . 



31. Grey shale ...... 



32. Grey shale with black markings 



33. Grey shale with hard sandstone 



34. Grey shale with thin beds of grit . 



35. Grey shale with beds of spar . 



Thickness. 

 ft. in. 



11 6 



3 

 2 



12 







20 3 



4 4 



1 8 



10 



10 6 



17 6 



4 



10 



6 6 



1 



5 



7 6 



9 



46 6 



10 



5 6 

 9 6 



29 



6 



9 



16 



11 



8 



Depth' 



ft. in- 



11 6 



15 



17 



29 6 



29 9 



50 



54 4 



56 



66 



76 6 



94 



98 



6 104 

 10 6 114 6 

 10 6 125 



135 



141 6 



142 6 

 147 6 



155 



164 



210 



220 



225 6 



235 



264 



270 



274 



283 



284 

 291 

 300 

 316 

 327 

 335 



