LAMPLUGH : NUTKS ON THE WHITE CHALK OF YORKSHIRE. 191 
completely choked. The laud was probably still elevated above its 
present level, so that one would have looked eastward from the old 
headlaud over a rolling plain continuous with that of Holderness, the 
hollows of which held numerous pools and lakelets. The climate for 
some time remained colder than at present, and the fauna included 
many animals which are now extinct in Britain. 
But much detailed work remains to be done throughout the 
country before the history of the long series of events since Glacial 
times can be compiled. We know, at any rate, that the land was 
eventually again depressed, perhaps for a time to slightly below its 
present level, and that then the sea ate rapidly into the incoherent 
drift material. The mantle was soon stripped away from the 
headland, and the waves started work again upon the cliffs of Chalk 
very nearly at the place where they had left off when interrupted by 
the ice-age. These ravages of the sea upon the drifts which fill its 
old bed are still proceeding apace, and if the land should remain at 
its present level Flamborough Head will some day regain much of its 
erstwhile prominence, and the bay to the south of it will once more 
reach to the foot of the Wolds. 
