Northumberland and Durham. 



49 



Strata at Pontop Pike Colliery, situated on Landchester Common. 



Fath. 

 Soil and clay ... 1 



Brown post ... 1 



Grey metal stone w • 3 



Coal ... . — 



Grey metal stone ... 2 

 Coal A. ... — 



Grey metal stone mixed . 8 



Coal ... . — 



Grey metal stone mixed with Coal — 

 Grey metal stone . . 2 



Grey post ... 1 



Grey metal stone, the top mixed \ . 



with girdles . . . J 



White post. Shield row post > 



(the Main post) . . ) 



Shield row Coal. B. \ 



(High main at Sheriff' Hill) 



13 



Whitish grey metal stone with 



post girdles 

 Grey post . , 



Grey metal stone . 



White post 

 Grey metal stone 

 Black grey metal stone . 

 Coal, the Hand Coal Seam C 



(Stone Coal at Sheriff hill) $ 

 Dark grey metal stone mixed ) 



with Coal . . . S 

 Coal, the Bit ass Coal Seam D. ) 



(Yard Coal at Sheriff - hill) \ 

 White post 1 



Grey metal stone with girdles . — 



3 5 



3 — 



3 — 

 2 — 

 1 4 



4 9 

 1 9 



5 3 



Carried forward 58 3 — 



Fath. 



Brought forward 58 



Black grey metal stone . — 



Grey metal stone with post girdles 3 



Dark grey metal stone with post f . 



girdles . . . .\ 



Brown post 

 Grey metal stone 

 Brown post 

 Grey post 

 White post 

 Black metal stone 

 Strong while post 

 Grey metal stone 

 Strong grey post 

 Whin 



Strong grey post 

 Whin . . ' . 



Grey and white post mixed with 



whin . 



Blue grey metal stone mixed 



with whin girdles 

 Coal, the Hgtton's Seam. E 



(Five quarter and Six quarter 



Coal at Sheriff' hill . 

 White post 



Coal F. (20 inch Seam) 

 Blue metal stone 

 Grey post mixed with whin 

 Mlue metal stone 

 Main Coal. G. The Low 



Main at Sheriff' hill 



Ft. In. 



3 — 



1 3 



— 2 



1 — 



3 — 



3 2 



3 1 



3 1 

 5 2 

 1 3 



— 6 



4 6 

 3 7 

 3 — 



-38 

 G 5 6 



5 10 

 1 8 

 3 9 



}- 



Total 



3 6 

 2 2 



Vol. iv. 



