198 Mr. Hutton on the Stratiform Basalt. 



From Tepper Moor the edge of the Whin appears to take a N. N. E. 

 direction ; the bed may be seen above a Limestone in a quarry at Cock 

 Play, on the descent to the North Tyne, which river it crosses a little 

 below Haughton Strother to Barresford, the stream having cut itself a 

 narrow channel through the bed. At Gunnerton Crags the Whin again 

 makes a bold appearance, it presents a very irregular outline, being in 

 some parts not 2 fathoms thick. Eastward of Gunnerton Crags the bed 

 crops out in the Park north of Swinburne Castle ; it then runs north- 

 east by the village of Little Swinburne, which is close to its edge, to 

 Thockerington Church, which stands upon it. A mile north of Thock- 

 erington, a Lead mine is worked at Norheugh, where the Basalt is in 

 three beds, one of which crops out above the stratum upon which the 

 mine shaft commences, and in the shaft there are two beds, one four 

 and the other six fathoms, being separated by a bed of Sandstone five 

 fathoms in thickness ; the Whin here was cut by a vein, which contained 

 a rib of ore 8 or 9 inches thick, much mixed with Iron Pyrites. The 

 circumstance above noticed, of three beds of Basalt, is not known, as far as 

 I am aware, in any other part of the district ; two beds are not uncommon. 

 At Little Swinburne, before mentioned, there is only one bed, but a 

 very little to the north-east of that place there are two. The edge of 

 the more northerly one, running by Thockerington, Quarry House, 

 Norheugh, and a little east of Hawick, to the ruined village of West 

 Whelpington ; from thence it goes by Sledhow Hill, Horn's Castle, 

 Rowley Hill, White Hill, and Caldwell to Hartington, a little beyond 

 which there appears to be but one bed again. The range of the edge 

 of the other bed from Caverton Moor, near Little Swinburne, where 

 the stratum first divides into two, is by Humbledon Hill, Divot Hill, 

 Great Bavington, West Harle, Three Farms, Whelpington, Elf Hills, 

 and Hartington. The new road from Newcastle to Otterburn has been 

 lately cut through the northern bed of Whin a little north of Whelp- 

 ington. The southern bed may be seen in the banks of the Wansbeck, 

 near the village, but it is so much confused by the passage of large 

 veins as to render its true connexion with the adjacent strata difficult to 

 be understood. At Copping Crag, a little below Whelpington Bridge, 



