32 



no great result would be thereby attained. On this account 

 these samples have only been subjected to a single boiling of 

 about one hour's duration. The quantity of the clayey substance 

 itself in proportion to the other ingredients will be shown by 

 the graphical representations. 



As is clearly shown by the table all the samples are 

 exceedingly rich in coarser ingredients over 0*05™™. The 

 average quantity of these is in all the samples 13*2 per Ct., 

 while in the corresponding samples from the I ngo If- Expe- 

 dit i on along the coasts of Iceland and West Greenland, 

 it does not reach 5 per Ct., and in the samples obtained, by 

 the F ram-Expedition along the North coast of Siberia it is 

 far below 1 per Ct. With regard to the last place, the reason 

 of the fineness of the samples is probably for the most part 

 due to the fact that the coast is quite low, and formed of loose 

 rocks such as sand and clay. 'On the other hand, the differ- 

 ence between the samples now described, and those from the 

 Ingolf-Expedition can only be ascribed to the much greater 

 quantity of floating ice found near East Greenland, as, in 

 all other essentials, the localities are alike. 



If the average quantities of all the individual sizes of 

 grains are calculated, the following numbers are obtained: 



below 

 001 mm. 



0-01- 005 

 mm. 



005-0-5 

 mm. 



0-5-1 

 mm. 



1—2 

 mm. 



2—4 

 mm. 



4—8 

 mm. 



8-16 

 mm. 



above 

 16 mm. 



426 



26-9 



17-3 



2-2 



1-7 



1-9 



2-1 



3-5 



1-8 



Herein is shown that the clayey and sandy ingredients, 

 as was to be expected, are in decided majority in comparision 

 with the coarser ones in the samples. It is rather strange 

 that smaller quantities are found between 1 and 4"^"^ of the 

 ingredients than of the somewhat coarser ones. This is mainly 

 owing to the circumstance that moraines at the bottom of the 

 sea probably supply large quantities of coarser ingredients, 



