350 



H. MOHN. iMETEOROLOGY. [2nd arc. exp. FRAM 



OBSERVATIONS OF AURORA BOREALIS. 



1899 



1900 



igoi 



1902 



Au. NW-SE 



Streamer in NE. Au. N-S 



Au. in NE. 



Slight Au. in NE. 



Strong Au. Arch and banded. 



Aurora. 



Au. banded and moving rapidly from NE-SW. 



Au. from SE-NW through the Zenith. Flasing. 



Slight Au. in NE. Banded in N. 



Au. through the Zenith, from SE-NW. 



Slight Au. NW-SE towards the Zenith. 



Streamer from NNW towards the Zenith. 



Another Band in W. 



Slight Au. from SE-NW. 



Slight Au. in NNW towards the Zenith. 



Coloured Au. from E-W. 



Au. on the horizon in W. 



Au. Sheaf. SE-NW. Duration 40™. 



Slight Au. in SE. 



Streamers in NE-SW. 



Slight Arch NE-SW. 



Slight Arch E-NW. 



Arch in SE-NW, low. 



Band NW-SE. 



Cloudlike patches of Au. E-WS and up near Zenith. 



Aurora. 



Slight Au. 



Slight Au. in SE. 



Slight Arch. ENE-WNW, c. 45° high. 



Aurora. 



Strong Band. 



Slight Band from SE-NW c. 20° from Zenith. 



Aurora. 



