H. W. Monckton — Marine and Subaerial Erosion. 407 



and rubble. I noticed the surface was then much more regular, the 

 line cutting through both limestone and calcite very evenly. 



We may therefore describe the platform as a tolerably level plain, 

 with here and there knobs of rock projecting above it, and it is most 

 instructive to compare it with the shore in front of it. The sea is 

 now taking another slice off the upturned limestone beds. Gradually 

 the old beach is removed, then the old platform is worn into 

 a collection of jagged points, and these are by degrees planed 

 away, and a new and fairly flat rock floor is cleared with a slope 

 seaward. Still, some parts take longer to wear away than others, 

 and knobs of rock stand up in places. What the width of the old 

 beach may be I do not know, perhaps no wider than the modern 

 platform in front of it. 



View of Cliff between Caswell Bay aj^d Brandy Cove, looking East.. 

 * Here a portion of the Raised Beach projects, 

 t Knob of Carboniferous Limestone rising above Raised Beach. 



I was more especially interested in these platforms as I have some 

 acquaintance with a similar feature on a very much larger scale on 

 the coast of Norway. It was described by Dr. Hans Reusch in 

 the Year Book of the Norwegian Geological Survey for 1892-93 

 (Kristiania, 1894:), and I have since had opportunities of examining 

 parts of it. 



The coast plain, as Eeusch terms it, extends along most of the 

 coast. Like our Gower platform it is cut in solid rock ; it runs like 

 a shelf along much of the mainland, and forms many an island. 

 In the case of other islands it runs all round them, producing an 

 appearance which has been compared to a hat floating on the sea, 

 crown uppermost, hence such names as Torghatten ('market hat'). 



The coast plain is usually but little elevated above the sea, and 

 rises towards the land to a height which varies in difi'erent places. 

 Dr. Eeusch thinks its topmost limit is about 300 feet. Its surface 

 is rounded and ice-worn, and he places the date of its formation 

 either before the Ice Age, or during intervals in that period when 

 the coast was free from ice. 



