GLA CIAL SUCCESSION IN NOR WAY. 139 



appear, represented by the well-known refuse heaps, the kdkken 

 moddinger, where, with shells and bones of Bos primigeniiis and 

 Alca impetmis, are found many rude instruments of horn, bone, or 

 stone. This culture, which did not know any other domesticated 

 animal than the dog, is by some archeologists called mesolithic. 

 Kdkken moddinger and implements of the same type, the coast 

 finds, are only discovered in non-deuteroglaciated places of Den- 

 mark and Sweden, which fact alone goes far to prove the 

 assumption that the Pi?ms sylvestris period really is interglacial, 

 as I have advocated above. And the molluscs in the refuse 

 heaps on the northern shores of the Danish isles are quite the 

 same as in the (upper) Cyprina-c\z.y on the southern shores, 

 which overlies the proteroglacial moraine, and is here generally 

 ploughed out by the rather feeble margin of the deuteroglacial 

 Baltic ice tongue. This interglacial layer contains often a stratum 

 with fresh water molluscs and in this supramarine deposit there 

 was found in Langeland shells of Cardium edide and Nassa retic- 

 ulata, in which I cannot but see a rudimentary kdkken mddditig 

 and a proof for the interglacial age of this mesolithic culture. 



From Norway we have only a few finds of implements of this 

 type, as might be expected, because the habitable coast was so 

 greatly depressed and covered in the following deuteroglacial 

 period. But it is reasonable to suppose that it also was inhabited 

 by a population akin to the Danish. When the latest ice sheet 

 pushed forward to the great mostly-submarine terminal moraine, 

 the retreat of this population on the western foreland was inter- 

 cepted, and interglacial man was obliged to adjust his mode of 

 life somehow to Esquimau fashion. But there is no reason to 

 think him quite exterminated here on the shore of the life-giving 

 Atlantic. And anthropologic studies have indeed proved that 

 on the western margin, just so far east as the deuteroglacial ice 

 left land outside, there lives yet a brachycephalic population, 

 while everywhere else (even in the innermost western fjords) 

 dolichocephals and mesocephals are in great majority. This 

 distribution of anthropological types is quite unaccountable by 

 any other supposition than that the brachycephals are descend- 



