Lewis,] 



286 



[April 21, 



The corona itself was a somewhat elliptical crown of radiating streamers, 

 within which Avas a permanent nebulous mass of light, having a curdled 

 appearance. This inner curdled mass was continually moving and heav- 

 ing like the sea, and Avas often traversed by dark rifts. It continually 

 drifted eastAvard to vanish suddenly, and to be continually replaced by 

 other cloud-like forms at the centre. Meanwhile the brilliant flashes ot 

 red light, disconnected, apparently, with the other phenomena, appeared 



N 



Fig. 2. Aurora at 13.25 a. m. 



in many portions of the sky, and often continued to form a back-ground 

 for the quivering white streamers. 



The streamers south of the corona presented quite a different appearance 

 from those to the north. They Avere quite short, and Avere often broken 

 into two or more segments, which fluctuated to and fro, but did not extend 



