6 P. A. ØYEN [No. 2 



Axinopsis orbiculata G. 0. Sårs occurred in the typical 

 variety of length 3 mm. 



Abra longicallis Sc. was not rare, but only occurred in 

 small specimens. 



Macoma calcaria Chemn. was not rare as occnrring more 

 especially in juvenile specimens. Exceptionally, specimens were 

 also seen that made one be reminded of M. torelli Steenstr. 

 as well in regard to the hinge as to the shape of the shell, but 

 this form is likely to be regarded as only a variety of the 

 main type. 



The middle thickness of the layers of this series might be 

 computed to be about a couple of centimetres. And, the whole 

 series has a thickness of abont 4,6 metres, viz. one lower part, 

 1,6 metres of bluish clay, and an upper part, 3,0 metres of bluish- 

 grey clay. The number of layers consequently ought to be 

 about 230. 



Above this series there ar more different layers of gravel, 

 sand, and clay, all of them having a yellowish-brown colour, 

 and the thickness of this compound deposit seems to be about 

 six metres. 



In the very lowest part of this series we meet with the 

 following complex layers in ascending order: — 

 2 — 3 centimetres of sand 



5-10 



75 



of clay 



2— 3 



» 



of sand 



0-20 



)) 



of clay 



2 



?) 



of sand 



5 



» 



of clay 



2 





of sand 



To the right or western side this complexity of layers seems 

 either to turn or shade into or to be immediately overlying a 

 deposit of true glacial till covering to the thickness of about seven 

 decimetres a projecting and scratched shelf of the base rock. 

 This till deposit is a very mixed composition of clay, sand, and 

 coarse gravel, often containing stones and blocks of a rounded 

 or edged form having often a transverse section of about three 



