JST. 49.] GLACIAL SUBMERGENCE. 167 



Fusus Bamffius and Fusus antiquus. On this evidence alone, 

 the question of age could hardly be decided. In Derbyshire I 

 have got marine shells at a level, I imagine, of at least 700 feet 

 above the sea. 



Of the extent of the old glaciers in Switzerland there can be 

 little doubt, and I am of your opinion that the Neuchatel block 

 was transported by glacier action. With regard to the extent of 

 subsidence during the Glacial period, that period lasted so long 

 and witnessed so many changes that I hardly know how I should 

 fix it. If, however, you take, as you propose, the whole period, 

 then I should be disposed to leave very little of Scotland, Wales, 

 or England above water. Without going very fully into the 

 question, your map seems to give a fairly correct approximation. 



I was at Wycoinbe yesterday, and discovered another Elephant 

 and Cyclas bed near Princes Eisborough. I have sent on your 

 note to Eamsay, and I am very truly yours, J. PRESTWICH. 



The three papers from his pen published during this 

 season were evidently founded in part upon observations 

 made in the early spring, and also upon his researches 

 in previous years. The first on the list, " On some 

 New Facts in Relation to the Section of the Cliff at 

 Mundesley, Norfolk," appeared in the ' Geologist,' vol. 

 iv. pp. 68-71. Mundesley had been a favourite haunt. 



The second, which came out in the Geological 

 Society's Journal, was entitled : " Notes on some fur- 

 ther Discoveries of Flint Implements in Beds of Post- 

 Pliocene Gravel and Clay ; with a few Suggestions for 

 Search elsewhere." The materials for this paper were 

 doubtless obtained from his researches in Suffolk, at 

 Bury Sb Edmunds and Icklingham ; in Kent, between 

 the Heculvers and Herne Bay, and at Swalecliffe near 

 Whitstable, which he had visited again and again in 

 the hope of finding flint implements. At last John 

 Evans was fortunate enough to discover on the shore 

 an oval-shaped implement identical in form with those 



