Geology of BenmcJcshire, 



643 



there darker-coloured. At Hadden Rigg it has been burned, 

 and employed as manure ; but the distance of coal is a great 

 drawback to its use. 



115 



Soil 



ft. in. 

 - 6 



-06 



Magnesian limestone with hornstone 



Claystone porphyry 



Magnesian limestone and hornstone 



Claystone porphyry 



Magnesian limestone and hornstone 

 Claystone porphyry 



Magnesian limestone and hornstone 



Claystone porphyry 



Magnesian limestone and hornstone 

 Claystone porphyry. 



Old Red Sandstone, — In travelling northwards from the 

 Tweed, we first meet with this rock at Greenlaw; all the 

 intermediate country, as we have said, being situated in the 

 new red sandstone formation. The banks of the river Black- 

 adder, above Greenlaw, consist entirely of this rock. To 

 every one who inspects these banks, it must appear desirable 

 that more should be done to improve their appearance ; for 

 we have rarely seen a better situation for art to assist nature, 

 by planting trees in the ravine, and on the high and pre- 

 cipitous rocks, where they would tower aloft, and present an 

 admirable prospect. The rock is soft, and affords a good 

 material for building, although its nearly brick-red aspect does 

 not please the eye so well as the more delicate colour of the 

 new red sandstone. The fracture presents small interspersed 

 portions of white sandstone. The strata dip slightly in the 

 direction of the river. We have traced the rock for several 

 miles above Greenlaw, and the moor is strewed with small 

 masses of it. It may be observed in situ on the east side of 

 Great Dirrington Law, and at the bridge over the Dye, at 

 Longformacus, where it becomes coarser, granular, and runs 

 gradually into greywacke, which occurs a tew yards above it 



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