18 P. A .ØYEN [No. 2 



overlapped by the follovving one that has a thickness of about 

 four decimetres and is likewise strictly bounded by the line of 

 erosion. This middle layer consists of well assorted, rat her. fine 

 sand in which stones of the size of a pea are rarely seen. This 

 sand has a reddish-grey colour. The uppermost layer consists 

 of coarse sand that is also rather well assorted. It is of a grey 

 colour with a faint dash of red or brown. This layer has a 

 thickness of about two decimetres and is bounded by the above 

 mentioned erosion line quite in the same manner as the two 

 preceding layers. It is a great pitty that no fossils were to be 

 found in these layers. 



Another highly interesting section, J, was opened about 

 25 metres to the north-east of section A. The lowest deposit 

 to be observed in section J was the blue or bluish-grey fossil- 

 bearing clay that was continuously traced from the fourth layer 

 of section A but the section did not penetrate to the bottom of 

 this deposit. In section J, however, we may in several places 

 observe rather large depressions penetrating into this lower clay - 

 deposit to the depth of three or evert four decimetres. These 

 depressions seem to have been caused by an erosive agent ac- 

 ting in nearly the same direction as the river, some of them 

 looking, indeed, rather like indentations having been caused by 

 the very same power. These depressions are filled with coarse 

 gravel containing large stones or blocks. And, this gravel de- 

 posit even expands so as to form a layer that to a thickness of 

 three decimetres is covering the underlying clay for a rather 

 great distance. The rather coarse gravel of this layer has a grey 

 colour that very often is of a rusty appearance; it is only rather 

 slightly assorted and looks like a morainic material that has been 

 to some degree influenced either by the action of littoral waves 

 or river water. No reaction to HG1 is to be seen. Some de 

 composed or weathered material, such as stones for instance, 

 may be seen to be mixed with the upper part of the gravel layer. 

 This gravel layer is in some places overlapped with finely lami- 

 nated layers of sand that was rather fine and well assorted. 

 This lamination proves the sand to have been laid down in 



