1913] THE QUATERNARY SECTION OF FOSS 9 



the section is formed by coarse sand or gravel with stones, that 

 are either rounded or edged. More fine-grained constituents are 

 completely washed away. HC1 gives no reaction. The colour 

 is either grey or in some places of a faint dash of brown or red. 

 In the section this layer has a thickness of only one decimetre 

 and completely wedges towards the south-west so as to make 

 the lowest layer of the section be here directly and immediately 

 overlapped by the third or uppermost layer that is formed by 

 fine sand of a yellowish-grey or even reddish-grey colour and 

 mixed with a little clay. We ought to note that the clayey por- 

 tions have a dash of yellow and the sandy portions a east of 

 red. The material of this layer gives no reaction to HG. 



Quite near to the intersection between the foundation wall 

 and the conduit sewer the section D exposed in descending order 

 clay, gravel, and clay, but without coming down to the bottom 

 of the series. 



About six metres to the north-east of the just above men- 

 tioned intersection between the foundation wall and the conduit 

 sewer a highly interesting section was opened, or we ought 

 perhaps rather to separate two or even three different sections, 

 one at the foundation wall, E, and two at the conduite sewer, 

 viz. one on each side of it. These two last mentioned sections 

 might, however, be regarded as only one, F, as they are con- 

 tinuous with each other. 



In section E we find a somewhat washed gravel immediately 

 covering the scratched rock beneath. The gravel was rather coarse 

 and had a reddish-grey colour; the material was only in part 

 assorted and contained rounded and edged stones. The character 

 of the deposit seemed to be that of a moraine influenced by fluvio- 

 glacial water, or in some places even nearly that of a fluvio- 

 glacial deposit. The thickness of this layer was about three or 

 four decimetres. 



This bottom-gravel was directly overlapped with a fine clay 

 deposit of a yellowish-grey colour to the thickness of about one 

 metre and a half. This clay layer completely corresponds with 

 the lowest clay deposit in section B. 



