14 P. A. ØYEN [No. 2 



further on above them give an ordinary reaction to HC1. The 

 clay, b, between the sand-layers is finely laminated as presenting 

 layers of the thickness of only one millimetre; it is of a yellow- 

 ish-grey colour, it is very fine and quite free of stones. The 

 clay, d, above the sand-layers has about the same character as 

 that of the clay between them as just described; we may, how- 

 ever, note that the finely laminated clay-layers are arranged in 

 groups measuring four millimetres in thickness or perhaps more 

 generally speaking the double thickness, viz. eight millimetres. 

 Further on we meet in ascending order with: 



e. Sand, thickness 3 mm. 



f. Clay, thickness 20 mm. 



g. Sand, thickness 1 mm. 

 h. Clay, thickness 6 mm. 

 i. Sand, thickness 1 mm. 

 k. Clay, thickness 10 mm. 

 1. Sand, thickness 12 mm. 



The clay-layers of the series e to 1 are of a yellowish-grey 

 colour and consist of a very fine-grained clay; this clay is finely 

 laminated in layers of the thickness of only one millimetre, and 

 it gives a faint reaction to HC1. The sand-layers of the same 

 series are of a reddish-grey colour and the sand itself is fine-grained 

 too. Sometimes cylindrical concretions of hard clay are found 

 in the deposit and these concretions are either of a yellowish- 

 grey colour or of a rusty brown one. The sand of the upper- 

 most layer, 1, is rather fine but well assorted; it does not give 

 any reaction to HCI. The sand-layers of the deposit in question 

 present the very same laminated structure as the clay-layers. 



This series is fossiliferous as the preceding one and proves 

 to carry about the same species even if some difference may 

 easily be detected as to varieties or even more conspicuously as 

 to numerical occurrence of the species mentioned. Drawing some 

 comparison between this series and the preceding one as to 

 faunistic character we ought perhaps at once to note the dif- 

 ference of Area glacialis Gray. This species occurred in the 

 preceding series in forma typica and a size of about 12 mm. 



