1 91 2. No. 12. 



THE SEA WEST OF SPITSBERGEN. 



Fig. 3. Vertical Temperature-Curves of Sect. I. Readings of (StatS. 3 and 6) make 

 Nansen-thermometer are not corrected. • 1 j u ^ 



a curious bend between 

 the marks representing 

 the lowermost determi- 

 nation with the Xansen- 

 thermometer and the 

 uppermost observation 

 le reversing thermometer, the 

 ations indicating a considerable 

 of temperature between 400 and 

 metres (Stat. 3 1 or between 500 

 600 metres (Stat. 6|. 

 The vertical temperature-curves 

 stations of Section I (Fig. 3) 

 section II (Fig. 4) exhibit 



Onu 



100 



200 



300 



4O0 



5oa 



600 



70C 



800- 



similar irregularities. In nearly all of 

 them there is a striking difference between the upper parts 

 of the curves which pass through the observations made with 

 the Nansen-thermometer (marked with dots) and the lower 

 parts passing through the observations of the reversing thermo- 

 meter (marked with crosses). The rise of temperature occurs at difterent 

 depths of 300, 400, 500 or even 600 metres, always where the observations 

 of the reversing: thermometer beein. 



r 



There are obvioush' errors of 

 some kind in these series of obser- 

 vations, for with the salinities tbund, 

 the temperature-readings of the Nan- 

 sen-thermometer would make the 

 densities — at 150 metres at Stat. 13, 

 at 200 m. at Stats. 4 and 5, at3oo m. 

 at Stats. 10 and 11, at 400 m. at 

 Stats. 3 and 8, and at 500 m. at 

 Stat. 6 — appreciably higher than 

 those of the underlying strata, whose 

 temperature was determined by the 

 reversing thermometer. Either the 

 temperature-readings of the reversing 

 theimometer must have been too 

 high, or those of the Nansen-thermo- 

 meter must have been too low. 



Fig. 4. Vertical Temperature-Curves of Sect. 



II. Readings of Xansen-thermometer are not 



corrected. 



Om, 



