H. B. 3ftiff8f W. B. Wright— Glacial Beach, Cork. 501 



In the absence of vertebrse it is impossible to be quite certain 

 to wbicli group of Stegoceplialians the new form belongs. In the 

 same beds, however, Mr. Brown has collected vertebral hypocentra 

 of a size sufficiently large to have belonged to the form under 

 consideration, and if, as is probable, the vertebral remains belong 

 to the same form as the skull, its affinities will most probably be 

 with those other forms which have rhachitomous vertebrge. 



The extreme length of the skull from the occipital condyles has 

 probably been about 250 mm. From the back of the ethmoid 

 to the back of the ' supra-occipital ' is 135 mm. ; and the distance 

 between the orbits 82 mm. 



For the new form I propose the name BatracTiosucJius Broioni, in 

 honour of the discoverer. 



VI. — On a Peeglacial or Early Glacial Eaised Beach in 

 County Cork.^ 



By H. B. Muff, B.A., F.G.S., aad W. B. Wkight, B.A. 



[Communicated with the permission of the Director of the Geological Survey.] 



THE existence of a raised beach formed, and probably elevated, 

 before the deposition of the Boulder-clay has already been 

 demonstrated in South Wales ^ and Yorkshire.^ During the progress 

 of the Drift Survey of the country surrounding Queenstown Harbour, 

 a beach of similar age was observed along the shores of the harbour, 

 and was subsequently traced at intervals along the adjoining coast 

 of Waterford and Cork from Dungarvon to Clonakilty, a distance 

 from east to west of about sixty miles. 



The relation of this beach to the well-known submerged river 

 valleys of the south of Ireland is a point of considerable interest. 

 The finding of glacial drift and strias within the valleys led at once 

 to the recognition of their preglacial excavation, but the subsequent 

 tracing of the raised beach beneath the Boulder-clay along their 

 banks showed that their submergence was also preglacial. 



The most persistent relic of the raised beach is a water-worn 

 rock platform, of varying width, sloping gently seaward and 

 terminated at its landward side by a rocky cliff against which 

 the deposits overlying the beach are banked. The higher portions 

 of this platform, just at the foot of the cliff, are from five to ten feet 

 above high-water mark — that is, perhaps, seven to twelve feet above 

 the higher portions of the corresponding plane of erosion in process 

 of formation at the present day. 



^ This paper was read in abstract before the British Association, Southport, 

 September, 1903, in Section C (Geology). 



- R. H. Tiddeman, " On the Age of the Raised Beach of Southern Britain as seen 

 in Gower" : Rep. Brit. Assoc, 1900, p. 760. See also Summary of Progress of the 

 Geological Siu-vey of the United Kingdom for 1899, pp. 154, 155. 



^ G. W. Lamplugh, "Report of the Committee appointed for the Purpose of 

 investigating an Ancient Sea-beach near BridKngton Quay " : Rep. Brit. Assoc, 1890, 

 p. 375. See alsoProc Yorkshire Geol. and Polytechnic Society, 1887, p. 381 ; and 

 " The Drifts of Flamborough Head," Quart. Journ. Geol. Soc, vol. xlvii, p. 384. 



