South-western Coal District of England. 



269 



Section 9. 

 In Pennant rockj and lower coal-shale, at Nailsea. See Phil. Mag. 1811 



Descending order. 

 Rubble 

 Withey seam 

 Rock 



Mag. 



as 



1, Seam mentioned in the Phil 



3. King^s-hill seam 

 Pennant 



4. Rock seam (not mentioned in Phil 

 Duns 



Rock 

 Duns 



5. fVhite''s or Main coal. There is 



below this seam 

 CliflF 



Dungy seam 

 Cliff 



7. Little seam (not mentioned in Phil 

 Cliff 



8. Violet seam 



6 



Fath. Ft. In. 

 1 

 4 

 a few fathoms 



above No. 3. 



worked in the pits nearest the 



church. 

 Dip S. 2 in 9. 



2 0\ 

 14 

 a few fathoms 



Mag.) 



no Pennant ; 



3 6 



Mag.) 



a few fathoms 

 18 



a few fathoms 

 1 4 



a few fathoms 



loy 



worked in White's collieries, 

 immediately west of the Glass. 



house. 

 Dip from S. to S.W., 2 in 9. 



An interval follows, which has not been thoroughly examined. The new 

 pit at Backwell, which is said to be sunk in this interval, exhibits, beneath 

 overlying red marl, the following beds : 



New pit at Backwell. 

 8 j^Dip N.N.W. Iin4. 





Rubbly rock 



3 







0- 



\ 





Duns 



10 







I 



9. 



Little rock seam, good coal 







1 



M 





Duns, not sunk through 



4 







oJ 





Duns and stone 



10 







0^ 





10. 



Smithes seam, variable in thickness 







5 











Duns &c. 



13 













11. 



Dog coal, a good fire coal. It has a -j 













thin argillaceous parting, and swells > 







3 











into large irregular masses -' 













Duns 



1 



3 







>. 



12. 



Spider delf coal, good coal 







2 







f 





Duns 



10 













13. 



Crow seam, good coal 

 Below this two other thin seams have 

 been proved, viz. 







3 









14. 



Milway seam 











16. 



Rock seam 







- 





Old pits at Backwell, 

 called Teague's col- 

 liery at Backwell in 

 the Phil. Mag. 



Dip N.N.W. 1 in 4. 



The faults in the Nailsea coal-field are few and inconsiderable. 



