TRIASSIC STRATA OF CUMBERLAND AND DUMFRIES. 385 



west of England or tlie south-west of Scotland. In it are 

 shown the St. Bees sandstone, the red shales with gypsum_, 

 and a fine development of lower soft sandstone containing 

 a singular bed of magnesian limestone imbedded in red 

 shales and four beds of breccia, which at Barrowmouth 

 is only seen in one bed of breccia 3 feet in thickness, 

 although it is there accompanied by a bed of magnesian 

 limestone found lying above it. This limestone has been 

 as yet nowhere else met with in the border counties ex- 

 cept at Canobie, and it is there found, as previously stated, 

 in the middle of the red sandstone containing four beds 

 of breccia. In addition to the Permian beds, we have 

 probably the best- developed upper coal-measures, with a 

 bed of Spirorbis limestone, yet seen in either England or 

 Scotland. 



In the Moat and Penton section only two beds of 

 breccia were found in the soft sandstone; but the latter 

 is not exposed, owing to some disturbance in the strata, as 

 in the Canobie section; so they may be there without 

 having been yet noticed. The passage of the Permian 

 strata into the underlying or upper coal-measures above 

 Canobie Junction is not so clearly seen as it is at Canobie 

 Bridge; but the fault which brings in the millstone-grit 

 series of coals against the upper coal-measures, called by 

 Mr. Gibsone the Great Permian Fault, is well exposed in 

 the railway-cutting at Penton. 



In the Carlingway Bum section we have as yet found 

 only one bed of breccia in the soft sandstones, and the 

 latter only poorly developed when compared with those 

 seen in the Canobie section; but the millstone grit and 

 carboniferous limestones are well exposed, and their cha- 

 racters are so marked that there can be no question as to 

 their geological age, and they appear to have been brought 

 in by a great fault similar to that noticed in the Canobie 

 and Penton sections. 



