Vol. 54.] PROCEEDIjSTGS op the geological SOCiEIY. iii 



have now shown that the brickearth which, in many respects, 

 simnlates the London Clay, is underlain by deposits which must be 

 classed as of Pleistocene age. 



The President then resumed the Chair, and Mr. H. B. Woodwaed 

 called attention to a block of quartzite from Criccieth (Caernarvon- 

 shire) which had been sent for exhibition by llr. G. J. Day. The 

 rock contained a band of disrupted clayey material which presented 

 on the surface of the block a rude resemblance to hieroglyphics. 

 He thought that this curious structure had been produced on a 

 sea-shore bounded by clay-cliffs, where a film of mud had been 

 spread over the sands ; and that the mud had dried and curled up 

 before other layers of sand had been accumulated on the top of it. 

 Similar phenomena might be produced at the present day on the 

 Cromer coast, where thin films of mud were in places spread over the 

 sands of the sea-shore. It had been suggested that the appearances in 

 the Criccieth stone might have been produced in the original deposit, 

 during the irregular solidification of the sand and its included layer 

 of mud. The rock itself was regarded by the President as probably 

 derived from the Harlech Grits, in which he had observed somewhat 

 similar features. 



Mr. Bauermats^, as one of the three Delegates ajDpointed by the 

 Council on behalf of the Society to attend the recent International 

 Geological Congress, held at St. Petersburg, gave a short account of 

 the work of the Congress, dwelling more particularly on the 

 excursion to the Ural Mountains, in which he had taken part. 



The following communication was read : — 



' A Contribution to the Palasontology of the Decapod Crustacea 

 of England.' By the late James Carter, F.R.C.S., P.G.S. (Com- 

 municated by Prof. T. McKenny Hughes, M.A., E.E.S., F.G.S.) 



The following maps were exhibited : — 



Geological Survey of England and Wales, 4 miles to 1 inch : 

 Index Map, Sheets 3, 4, and 7 (lithographed), and New Series, 

 1-inch Map No. 263, Cardiff (Solid and Drift), 1897 ; also Geological 

 Survey of Scotland, 1-inch Map, Sheet 75, Tomintoul (Banff), 1897, 

 presented by the Director-General of H.M. Geological Survey. 



Beproductions made by the Science and Art Department from 

 W. Smith's Original Maps, which are in the possession of the Society, 

 presented through Prof. J. W. Judd, C.B., LLD., F.R.S., by that 

 Department. 



November 17th, 1897. 



Dr. Heney Hicks, E.R.S., President, in the Chair. 



Henry Fleck, Esq., 128a Qaeen's Road, Peckham, S.E. ; and 

 Edwin Bennett Brierley Newton, Esq., 131 Monton Road, Eccles 

 (Lancashire), were elected Fellows of the Society. 



