﻿Summary of the Contents. 



On the Late Glacial and Postglacial Changes 

 of Level in the Kristiania-Region. 



Pp. 3—205. I. The Subsidence. 



Pp. 3 — 8. The great terminal moraine ridges — the ras — 

 on both sides of the Kristiania Fjord were formerly, especially by 

 De Geer, commonly supposed to indicate the uttermost limit of 

 the last great ice sheet; on pp. 3 — 8 it is proved that this 

 opinion cannot be right, because the land outside and indside 

 the ra does not dif f er. The rock surface on both sides of the 

 ra is equally polished and scratched, and the scratchings are 

 equally fresh, and engraved in the same direction, etc, and the 

 scratchings outside the ra are only covered by the ground 

 moraine or by a marine clay, the yoldia clay, that without all 

 doubt originates from thé last ice epoch. It is therefore evident 

 that Southern Norway, (especially the Kristiania Region) along 

 the south coast, has also, during the last ice epoch, been com- 

 pletely covered by the land-ice out to the extreme limit of the 

 land-mass itself, and even beyond this Hmit. 



Pp. 8—30. A. The Older Yoldia Clay. 



A few years ago only one occurrence of yoldia clay w^ith 

 3 (4) species was known from Southern Norway. Through the 



