0. B. B0GGILD. BOTTOM DEPOSITS. 



[nORW. POL. EXP. 



consistency of the clay is one of the most complicated questions met with in a 

 mechanical examination of the deposits; but as it is of the highest importance, 

 and very greatly influences the results obtained, it will be necessary subse- 

 quently to enter into the question more fully. 



The accompanying table gives the geographical situation of the several 

 stations, and the designation, general consistency, and colour of the samples. 



As was already pointed out in the introduction, and as will also appear 

 from this table, the bottom-samples in most respects are remarkable for their 

 very slight variation. They can only be referred to two of the ordinary classes 

 of marine bottom-deposits, namely, (1) the Shallow-Water Deposits, and (2) the 

 Grey Deep-Sea Clay; and these two classes do not differ from one another 

 in any one decided character. The boundary is here placed, as usual, at 

 200 m.; and here, as elsewhere, it is apparent that on the whole this division 

 is fully justified. Where the depth is less than 200 m., the deposits consist 



