1894-95O 20 9 



banks in the Irish Sea, incorporated in the ground moraine of 

 the li Irish Sea Glacier/' To this school the diluvial hypothesis 

 is more consonant than the "great submergence" theory. " I 

 believe," writes Professor Carvill Lewis, li that British geology 

 would be much further advanced if, when Mr. Trimmer an- 

 nounced his discovery of shells on Moel Tryfaen, his theory 

 had been accepted instead of that of a marine submergence. . 

 . . . When England is once and for ever free of it the Drift 

 will no longer be a bye- word and a synonym for confusion and 

 helplessness, but will take its rank among the orderly strata of 

 the earth's crust. That once accomplished, post-pliocene deposits 

 will become of the highest interest as having the most direct 

 bearing on the advent of the human race." We must all feel 

 with Professor Carvill Lewis that deposits which bring us to 

 the dawn of the human era have a special interest, but in the 

 light of recent evidence, perhaps we may wish to pause before 

 relinquishing the older theory of "submergence." 



It would be presumptuous in me to offer any opinion. Great 

 workers on both sides have done noble work in the interest of 

 truth alone. Comparative observations are increasing rapidly, 

 and, when all these are marshalled in order, I trust some simple 

 generalization may be discovered, so widespread in its bearing 

 as to include satisfactorily even the capricious, high-level shell- 

 bed of Moel Tryfaen " among the orderly strata of the earth's 

 crust." 



LIST OF FOKAMINIFERA 



From " Shell-bed," Moel Tryfaen. Determined by 



Joseph Wright, F.G.S. 



1. Sand, weight 70Z. Foraminifera, 8 specimens. 



Cassidulina crassa, d'Orb., 2 specimens. 

 Pulvinulina Karsteni (Rss.), 1 specimen. 

 Nonionina depressula (W. & J.), 3 specimens. 

 2 specimens too much broken to identify. 



2. Gravel, weight 50Z. Foraminifera, 24 specimens. 



Miliolina Sp., 1 specimen, very small. 



