CHAP, iv.] GEOGRAPHY OF BRITAIN IN PLEIOCENE AGE. 73 



of Suffolk and Essex (See Fig. 10). The Pleiocene coast- 

 line touched also the eastern coast of Scotland near 

 Aberdeen, where Ked Crag strata are met with containing 

 the characteristic shell, Valuta Lamberti. 1 This depres- 

 sion, by which the Arctic became continuous with the 



FIG. 10. Geography of Britain in the Pleiocene Age. 



North Sea, caused it also to become connected with 

 the Atlantic. The Atlantic coast-line at this time may 

 be taken to be marked by the steep slopes passing 

 downwards from the 100-fathom line to 300 or 400 



1 Jamieson, Quart. Jourti. Geol. Soc. Lond. xxi. p. 474. 



