THE 



JOURNAL OF GEOLOGY 



FEBRUARY-MARCH, iSq-j 



PROFESSOR GEIKIE'S CLASSIFICATION OF THE 

 NORTH EUROPEAN GLACIAL DEPOSITS. 



In Vol. Ill of this Journal, Professor James Geikie gives a 

 concise account of his present ideas concerning the classification 

 of the north European glacial formations. His statement 

 involves a comparison of the drift formations of various north 

 European localities with one another, and with those of the Alps. 

 He differentiates six glacial epochs, separated by five interglacial 

 epochs, which he names after typical localities, as follows : 



First glacial epoch, Scanian. 



First interglacial epoch, Norfolkian or Elephas meridiojialis 

 stage. 



Second glacial epoch, Saxonian. 



Second interglacial epoch, Helvetian or Elephas antiquus 

 stage. 



Third glacial epoch, Polandian. 



Third interglacial epoch, Neudeckian. 



Fourth glacial epoch, Mecklenburgian. 



Fourth interglacial epoch. Lower Forestian. 



Fifth glacial epoch, Lower Turbarian. 



Fifth interglacial epoch. Upper Forestian. 



Sixth glacial epoch, Upper Turbarian. 



I. Sca)iia?i stage. — The oldest glacial formation of north 

 Europe appears in Schonen and points to a Baltic glacier. In 

 England perhaps the Chillesford Clay and Weybourn Crag with 

 Vol. v., No. 2. 113 



