OF ORES AND COALS. 



very large, were turned up, glowed in the fire like other cin- 

 ders, and not to be known from them when taken out. 



The principal lead-works with us are at 



Allen-Head, Shilden, 



Goal-Clugh, Fallo wfield. 



have been worked for time immemorial. The 

 ore lies in the form of a tree, recumbent. The method of our 

 miners working them, is by finking a fliaft till they come to a 

 vein, and then they make crofs-cuts, and with eager purfuit fol- 

 low the feveral branches, or firings, as they call them. They 

 had formerly another method, flill practifed about a mile to the 

 fouth-eaft from thefe, near Rokehope, within the liberties of the 

 bifhoprick of Durham. This was by flooding, or hufljing, as they 

 phraze it; making a large bafon or refervoir of water, which 

 being let out by a fluice in a full ftream through a cut or opening 

 from a defcent, with an irrefiftible impetuofity fweeps away, on 

 frequent repetitions, all the various fubftances which compofe 

 the roof of the mine, freeflone, iron-ftone, whin-ftone, lime- 

 flone, fpar, and talc, and, at length, the ore itfelf, with gravel, 

 'land, and other extraneous matter, in gentler currents. 



Coal-CIugh-Mine is. three miles to the fouth-wefl from Allen- 

 near the fource of the rivulet of Weft- Allen ; by a clugh, or boggy 

 hollow, as the name imports, black and hideous to look upon. 

 ft is faid to be the deepeft lead-mine in England, 100 fathom, a 

 Subterraneous waggon-rway, of a mile in length, leading to its 

 Oftium. 



The 



