14 Mr. Buddle's Notice of a Whin Dyhe. 



that already described in the quarry, on the East side of the Ouseburn. 

 This quarry is at a point in the Eastern bank of the Dean, which juts 

 out considerably, and lies about mid-way between Yellowley's Pottery 

 and Rennoldson's Mill. 



In the Arkley Dean, which lies about 200 yards further down the 

 burn, to the South of this point, a pit was sunk a few years ago, to the 

 High Main Coal Seam. At a few yards to the North of this pit, the 

 workings terminated at the " Cinder Coal," on the South side of the 

 Whin Dyke. 



The High Main Coal Seam is in perfection at Rennoldson's Mill, al- 

 though it crops out to the surface in the bed of the burn, at a short dis- 

 tance to the South of the Mill. But the Coal being found in a regular 

 state in the pit, in Arkley Dean, and also at Rennoldson's Mill, and the 

 North workings from that pit having been stopped by the Cinder Coal, 

 shews clearly that the Dyke lies between these two points, even if its 

 presence had not been proved by the appearances in the Stone quarry 

 already described. 



The next point at which we have any account of the Cinder Dyke, 

 and which account is also traditionary, is at the Jane pit, in Old Byker 

 Colliery. This pit was sunk close on the South side of the Dyke, and 

 tradition states that it threw the main Coal seam down six fathoms to 

 the North. I have been in the old workings of Byker Colliery, within 

 about 100 yards to the North of this pit, and saw no appearance of Cin- 

 der Coal, in the accessible part of these workings, which shews that 

 the Dyke cannot be of any great width here. 



Proceeding onwards to the South East, the next point, where the 

 Cinder Dyke was proved, was in the South West workings of the 

 High Main Coal, in Lawson's Main Colliery. 



These workings reached the North East side of the Dyke, and con- 

 firmed its supposed line of direction, from the points already described, 

 into Walker CoUiery, where its line of direction and other circumstances 

 are accurately described in the 4th volume of the Transactions of the 

 Geological Society, by Mr. Winch, from Mr. Geo. Hill's Commu- 

 nication. 



