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and presented part of an arch based upon the upper part 

 of another, — this latter throwing out singularly brilhant 

 coruscating streamers towards the zenith, while it rested on 

 luminous clouds, near the horizon, somewhat in this manner : 



About twelve o'clock I could only see a luminous cloud, not 

 very extensive, towards the N. W., with the ordinary flashing 

 and playing masses of light. 



" The colour of the aurora, when first seen, was slightly 

 reddish, afterwards decidedly yellow ; the streamers were 

 occasionally very brilliant and perfectly white." 



The subject of the aurora having been brought before 

 the Academy, Dr. Apjohn took the opportunity of describ- 

 ing a very beautiful phenomenon of the kind, which had 

 been observed on the 1 6th of last September, at Sunville, 

 in the county of Limerick. It was first noticed at about 

 half past eight o'clock in the evening, and did not disappear 

 for very nearly an hour. It was first seen in the southern 

 part of the hemisphere, and consisted of a number of stream- 

 ers of variable brilliancy, shooting upwards in vertical cir^- 

 cles, or, more strictly speaking, converging towards a point 

 which appeared a few degrees to the south-east of the 

 zenith. They did not in any case originate from the hori- 



