14 



H. MOHN. METEOROLOGY. 



[norw. POL. EXP. 



SoDERBERG No. 105 a. 



SoDERBERG No. 105 b. 



(repaired) 

 verified in Christiania. 



From 

 0° 

 + 2-5 

 + 8 

 + 16 



To 



+ 2-5° 

 + 8 

 + 16 



+ 20 



Corr. 

 + 0-4° 

 + 0-3 

 + 0-2 

 + 0-1 



The dates on which the thermometers were taken into use are as 

 follows : 



Dry-bulb Thermometer. Wet-bulb Thermometer. 



105 a 



When the Fram was under way or at anchor, the observations were 

 made with the thermometers placed on a whirling machine, and rotated for 

 one minute. This was done as far as possible in the shade, and on a spot 

 that was free from radiating or conducted heat from any part of the ship. 



From the day when the ship became fast in the polar ice, the thermos 



