48 BJØRN HELLAND-HANSEN AND FRIDTJOF NANSEN. M.-N. Kl. 



20), 26, and 28 (perhaps also 29). The observations at all these stations are 

 also near the tops of the "waves" of the curve in Fig. 37. On the other hand 

 the valleys of the "waves" of the Sections are at Stats, 17, 19 (perhaps 21), 

 25, 27, and perhaps 30. The observations at all these stations are in the valleys 

 of the curve in Fig. 37. There is actually no exception from the rule; for 

 the other stations [viz. Stats, 15, 20, 21, 22, 23, 24, and 31) cannot be 

 counted, as they are more or less outside the area of the Atlantic Current, 

 and their vertical distribution of temperature and salinity was such that 

 vertical movements of the water-strata would not make much difference. 



In Sections I and II there are no very conspicuous "waves" of the 

 same kind as in Sects. IV and VI ^ But there are indications of some 

 "waves," V.^. perhaps at Stats. 7, 8, 9, 10, and 11, where the isotherms 

 demonstrate undulations. And in these cases there is actually also agree- 

 ment with the tidal curve in Fig. 38. The great rise of the isohaline of 

 35.0 %o at Stats. 9 and 10, is evidently a phenomenon different from the 

 above-mentioned waves, this being also proved by the fact that the 

 isotherms have no similar rise. 



On the whole the results of the above analysis may seem to be in 

 favour of the view that there is some connection between the "waves" in 

 the sections and the tidal phenomena. Our discussion of the subject in 

 our work on the Norwegian Sea [1909, p. 97] led to similar conclusions, 

 one of them being that at any rate some "waves" in the vertical sections 

 of the Norwegian Sea had some connection with the tidal phenomena. It 

 is not to be expected, however, that the period of these "waves" would 

 be exactly the same as that of the moon ; and therefore it is not probable 

 that there would be perfect agreement between them. But as the material 

 of observations at hand is hardly sufficient for a satisfactory study of this 

 question, it is not worth while to go farther into detail here. 



The Branches of the Spitsbergen Atlantic Current. 



The observations of the Spitsbergen Expedition of 1910 in connection 

 with those of the Belgica Expedition of 1905 demonstrate very clearly the 

 courses and extension of the branches given off from the Spitsbergen 

 Atlantic Current — the branch flowing westward and forming the inter- 



1 Sections I and II were taken between June 25th and 27th, three to five days after 

 spring tide^ the full moon occurring on June 22nd. Sections VI and IV were taken 

 from July 17th to 23rd, from five days before till one day after spring tide. It seems 

 therefore hardly probable that there would have been much difference in this respect; 

 for it is not credible that, for instance, the tidal wave should have been bigger at 

 Stat. 18 on July i8th, four days before full moon, than at Stat. 3 on June 25th, three 

 days after full moon. 



