1915- ^o- 5- ROALD Amundsen's antarctic expedition: meteorology. 37 



Aurora Australis. 

 Number of Days. 



April May June July Aug. Sept. Total 



Xuniber of Auroras observed in the different Octants. 



Auroras seen in the Zenith. 



6 times 



N\V to SE 

 S ... 

 S-N . 

 SW-NE 

 S\V-NW 

 N and E-\V 

 E— W . . 

 Zenith alone 



Total :8 times 



The Auroras lie chiefly in an arc stretching from X\V — X — XE — E 

 on the XE side of Framheim. The majority of the auroras seen in the 

 zenith extend from X\V — SE. This indicates that Framheim is Ij'ing well 

 within an auroral zone converging towards the SW. 



The magnetic declination at Framheim is 104" X — E. The south end 

 of the magnetic needle points towards the magnetic pole in S. \'ictoria 

 Land, or towards WXW. The auroral zone has not the magnetic pole 

 as its centre, but the so-called magnetic axis, the position of which is SW 

 from Framheim in lat. 79° S. I am indebted to Prof. C. Stormer for this 

 remark. 



Xtimbers of Auroras at various Hours. 



Total 29 ID 49 88 



The auroras were most frequently seen at 8 p. ni. 



