BRITISH POSTGLACIAL & RECENT DEPOSITS 451 



CHAPTEE XIX. 



POSTGLACIAL AND RECENT DEPOSITS OF THE BRITISH 

 ISLANDS — Continued. 



Correlation of English Postglacial accumulations — Resume of the evidence — 

 Raised-beaches of English coasts — Postglacial accumulations of inland 

 districts — Their unconformability to Glacial and Palaeolithic deposits — 

 English rivers of larger volume in Postglacial times — Lacustrine alluvia and 

 peat-bogs of England — Their organic remains — Succession of forest-layers in 

 English peat — Arctic flora at Bovey Tracey — Postglacial mammals of Eng- 

 land — Postglacial and Recent deposits of Ireland — Submarine trees and peat 

 — Raised-beaches — Neolithic kitchen-middens — Successive tiers of trees in 

 bogs of inland districts — Mr. Kinahan's observations on succession of changes 

 which these imply — Human relics in Irish bogs — Postglacial mammalia. 



The English. Postglacial beds, of which I have now given a 

 short sketch, while they certainly differ in detail in the separate 

 regions where they occur, yet possess certain characters in 

 common which allow us to compare and correlate them. If, 

 after examining the evidence, we shall discover that certain 

 strongly-marked features present themselves in each of the 

 typical districts which have been passed under review, we shall 

 naturally attach greater importance to these than to such 

 features as appear to be more or less local in their occurrence. 

 Beginning then with the Postglacial and Eecent deposits of 

 the north-west coasts, we find that these may be grouped as 

 follows : — 



1. Lower Buried Forest: greater extent of land than now, climate 



genial. 



2. Lower Peat : conditions unfavourable to forest growth ; climate 



probably more humid than that of No. 1. 



