386 Geological Society . 



contributed materials for the valley-gravels. He explained that, 

 with the possible exception of the Westleton Shingle, he entirely 

 rejected the theory of marine action in connexion with the formation 

 of these gravels, and thought that the Glacial Gravels were probably 

 for the most part due to floods during melting of large quantities of 

 ice. The remaining gravels, he believed, had been spread out by 

 water in valleys ; as denudation proceeded, the gravel, by pro- 

 tecting the ground upon which it lay, came to stand out as the 

 capping of the plateaux and hills ; as the gravel itself was 

 denuded, the materials were carried to lower levels, forming new 

 gravels ; and this process has been repeated up to the present 

 time. He explained that Prof. Eupert Jones and Dr. Irving had 

 already adopted this theory in part, but that he differed from them 

 in the entire exclusion of marine action. 



3. "The Bagshot Beds of Bagshot Heath." By Horace W. 

 Monckton, Esq., F.G.S. 



The author stated that certain changes in the classification of the 

 Bagshot Beds had recently been proposed, and he gave reasons for 

 preferring that at present in use, which was originally proposed by 

 Prof. Prestwich in 1847, viz. a threefold division into Upper, Middle, 

 and Lower Bagshot. 



He then argued against the theory that the Upper and Middle 

 Bagshot Beds overlap the Lower Bagshot on the north-western side 

 of the Bagshot district, as had been suggested by Dr. A. Irving ; 

 and, dealing with the various localities where Upper Bagshot had 

 been alleged to exist resting on Lower Bagshot or on London Clay, 

 he contended that in every case the evidence in favour of Upper 

 Bagshot age broke down on examination. 



January 6, 1892.— W. H. Hudleston, Esq., M.A., E.R.S., 



Yice-President, in the Chair. 



The following communications were read : — 



1. "On a new Eorm of Agelacrinites (Lepidodiscus Milleri, n. sp.) 

 from the Lower Carboniferous Limestone of Cumberland." By G. 

 Sharman, Esq., and E. T. Newton, Esq., E.G.S. 



2. "The Geology of Barbados. — Part II. The Oceanic Deposits." 

 By A. J. Jukes-Browne, Esq., B.A., F.G.S., and Prof. J. B. Harrison, 

 M.A., E.G.S. 



The Oceanic deposits rest unconformably on the Scotland Series, 

 with which they contrast strongly in every respect. They are divi- 

 sible into five portions : — 



1. Grey and buff calcareous marls (Eoraminiferal). 



2. Eine-grained red and yellow argillaceous earths. 



3. Pulverulent chalky earths (Eoraminiferal). 



4. Siliceous earths (Badiolarian). 



5. Calcareo-siliceous and chalky earths (Eoraminiferal). 



The whole series is more calcareous in the northern than in the 



