so 



Mr. N. J. Winch's Contributions to the 



but occasionally tinged yellow by ochre. Imbedded in the 

 mass, large rhomboidal crystals, similar to the Dufton spar, of 

 a pale azure blue, were detected : these, however, were of rare 

 occurrence. That sulphate of barytes once covered the lime- 

 stone at the old quarries is evident from patches left on the 

 cliffs not worked away, but which being far out of reach, were 

 mistaken for the remains of a bed of white limestone. Bo- 

 tryoidal heavy spar, of a flesh-red colour, was some years since 

 found in the interstices of the rough partially crystalline 

 magnesian limestone at Man Haven, on the coast of Durham 

 near Whitburn, by the Rev. Mr. Abbs; but I believe that an 

 extensive bed, in places exceeding ten feet thick, is a new 

 feature of this formation. Casts of shells and one impression 

 of a fish, I hear, have been found in the Whitley Quarries ; 

 and small brilliant crystals of blend I have seen in the dyke, 

 on the sea-shore, where the soft yellow sandstone, first de- 

 scribed as underlying the magnesian limestone, appears in the 

 cliffs on the north side of the dyke at Cullercoates ; and after 

 passing under the village of Whitley, may be seen at its 

 northern extremity in a small well, a little to the north of the 

 place where it was detected by Mr. Fryer. 



Section, No. 1 . — An Account of the Strata sunkthrough atGosforth 

 Colliery, Northumberland, finished 27th October 1827. 



°l 



O £ 



I 



2 

 3 



9 

 10 

 11 

 12 

 13 

 14 

 15 

 16 

 17 

 18 

 19 

 20 

 21 

 22 



Brown stony clay 



Gray seggar clay, or thill 



Gray metal stone mixed with gray post in 1 



East Pit j 



Black metal 



Coal 



Thill scared with black slate near the bottom 



Gray metal stone with post girdles 



Brown post, which grew whitish towards the) 



bottom J 



Gray metal with seamy post girdles 



Blue metal 



Coal 



Thill 



Gray metal stone , 



Gray seamy post , 



Black metal , 



Gray post 



Gray shivery post 



Black stone 



Coat 



Thill 



Main post 



Post, in blocks, being high main coal waste . . 

 Carried forward , 



