Mr. Wit HAM on the Red Sandstoness of Berwickshire. I79 



Rocks may be traced. They are found alternating with Shales and 

 Limestones, containing many of the most characteristic fossils of the 

 Mountain Limestone. I must here observe, that between Berwick and 

 Ross considerable seams of Coal have formerly been worked. The 

 most singular distortions have taken place by the protrusion of the Tran- 

 sition rocks of the Lamberton Hills, which has raised them to a per- 

 pendicular position, and even caused them to bend over, as will be 

 seen by Figs. 6 and 7- 



Fig. 6. 

 ONE MILE SOUTH OF ROSS. 



Fig. 7. 

 ROSS. 



Red Sandstone, lower part, a 

 Conglomerate, having Shale 

 and other Limestone Beds al- 

 ternating. 



""-^-''-^ ^^.. /'X X/y^'' 



SandstoneSi Limestones, and Shal^l. 



At a point one mile south of Ross, Red Rocks are seen in contact with 

 the Grey wacke. Many of the beds in the lower part are conglomerates 

 which I take to be of the old Red Sandstone. 



Again, on the north side of St. Abbs' Head, I observed many similar 

 alternations with this Red Rock. A blue Limestone, containing organic 

 remains, is worked at Thornton-lough, dip N. E. Further north,* 

 Limestone is seen at Skaterow, which also dips to the N. E., and at the 

 Duke's kiln quarry, two miles south of Dunbar, is seen a Limestone 13 

 feet thick, with thin Shale beds in it, reposing upon a seam of Coal from S 

 to 12 inches thick, all these beds being above the last mentioned red rock. 



Thus it would appear, that along the whole range of coast from 

 Fenwick, nine and a half miles south of Berwick, to the neighbourhood 

 of Dunbar, this Red Rock, although so much resembling the new Red 

 Sandstone, is evidently a subordinate member of the Mountain Lime-r 

 stone group. 



