GEOLOGY OF PART OF SOUTH DURHAM. 157 



Feet. In. 



Grey shale , 1 5 



COAL 4 



Grey shale, with girdles of sandstone and "whin" 29 



Grey shale, with "whin" girdles 22 8 



Dark grey shale, with girdles 4 3 



SPLINT COAL , 10 



Shale, mixed with foul coal 1 5 



FIVE QUARTER COAL, coarse and splinty the last yard 4 



Grey shale..; 8 



Strong shale 20 4 



COAL 1 6 



Dark grey shale, with sandstone girdles 9 7 



Strong white sandstone 2 6 



Strong shale, with " whin " girdles 6 9 



COAL 6 



Dark grey shale, mixed with coal 4 



Grey shale, with sandstone girdles 15 9 



FOUL COAL, mixed with shale 1 



Dark grey shale 6 



Strong white sandstone, with " whin " girdles 9 2 



"Whin" 1 fi 



Strong white sandstone 1 4 



Grey shale, with thin girdles 19 1 



BROCKWELL COAL 6 7 



Dark grey shale, hard and brassy near top 1 



359 



No. 4.— TABLE OF STRATA SUNK THROUGH AT THE LYON'S 

 PIT, NEWTON CAP COLLIERY, 1857. 



Feet. In. 



Clay 16 



Strong blue clay 9 6 



Brown sandstone 4 



COAL 1 



Blue shale 11 



White sandstone r 2 2 



Feet. In. 



iCoal 4 



COAL | Fireclay 6 



(Coal 8 



Grey shale 3 



