NORTHUMBEELAND AND DUKHAM. 27 



mural cliff 400 feet above the sea level, resting on sandstone, 

 and overlaid by a shale, which is metamorphosed ; it then extends 

 south-eastwards, and at Middleton is intercalated between a lime- 

 stone and a sandstone, the latter being above it and metamor- 

 phosed at the point of junction. From Belford it goes eastward 

 in a succession of high cliffs to Spindlestone, where it rests on 

 limestone, and then to the mouth of the Warn, whence it bends 

 southward to Eamburgh, where it is 75 feet thick, resting on 

 sandstone and shale. Along the coast, between Budle and Eam- 

 burgh, there appear two different overflows or veins, separated by 

 metamorphosed shale, and above the basalt is limestone. From 

 Bamburgh it extends seaward, and forms the mass of the rocky 

 islets of the Fame. It reappears on the south side of Beadnell 

 Bay, having above it what we shall call, for distinction's sake, 

 the Bent Hall limestone, which is here magnesian ; and after 

 curving inland, and again running along the coast southward of 

 JSTewton, it sweeps round by Emblcton and Spittalford to Dun- 

 stanburgh Castle, where, in two places, metamorphosed shales 

 come out of the mass of basalt ; and limestone, when in contact 

 with it, is changed into white crystalline marble. It extends 

 along the coast to Cullernose, where it is 120 feet thick, and 

 where, too, remarkable results of mechanical action are seen in 

 the dislocated sandstone strata. Here it bids adieu to the coast, 

 and trends away south-westward by Howick and Longhoughton ; 

 and at Eatcheugh there are evidences of two, if not three, over- 

 flows or injections, two being distinctly seen in a section at 

 Dunsheugh, where the limestone above as well as the shale 

 below is metamorphosed. It crosses the Aln near to Denwiek 

 Mill, and is next seen southward of Alnwick at Stoney Hills, 

 whence it runs to Snipe House and Shieldykes among the 

 lowest beds of the calcareous division of the Mountain Lime- 

 stone ; but between this and the south bank of the Coquet no 

 traces have been found of this sill. It, however, reappears at 

 Ward's Hill, with the Bent Hall Limestone below it, and goes 

 thence to Hartington, beyond which, for some distance, there 

 are tAvo lines of basalt, one passing the Elf Hills and Bavington, 

 and the other West Whelpington and Throckington ; but from 



