438 Mr. E. J. Lowe on a remarkable Solar Phcenomenon. 



pair of wings, AA, 70° in length, very sensibly prismatic, the 

 red being next to the sun, and almost as brilliant as the smi 



himself. The sun was pale and sparkling, and the phaeno- 

 menon brightest directly above that luminary. This was 

 about 25° above the sun. 



Qh i3m^ The singular spectacle changed from being pris- 

 matic to pure txiJiite', and a circle, BB, of 50° diameter, having 

 the sun for its centre (also colourless), was now visible. 



0^ 14°i. A mock sun, C, was apparent although faint, being 

 tinged with prismatic colours, and had a well-defined edge. 

 It was situated on the horizontal level of the true sun on the 

 circle of 50° in diameter, and on the preceding side of the 

 sun. 



0"^ 15°^. Mock sun C vanished. 



O'^ le*". Another mock sun, D, was faintly visible, formed 

 on the circle above alluded to, and on its left-hand side, at 

 about an altitude of 12i° above the horizontal level of the true 

 sun. 



Qh 18"^. The appearance of wings, together with the mock 

 sun D, disappeared ; but an arc of a circle, E, of very large 

 dimensions, became apparent, which cut the former circle at 

 C; it was inverted with respect to the true sun, and must 

 have had its centre on or below the north horizon. It did 

 not remain long enough to take any measurements. 



0^ 19™. Mock sun C again visible, but faint. 



0^ 20"". C vanished ; but another mock sun had appeared 

 at F, about 4° below the apex of the circle BB. 



Qh 21°^. F, together with BB, disappeared; but the wings 

 AA once more became visible, being again prismatic. 



(S^ 26™. BB and C again apparent, and AA more brilliant, 



Qh 27™. A mock sun, H, faintly visible, situated on the 

 horizontal level of the sun, and on the succeeding side of the 

 circle BB. 



Qh 27|™. H became brilliant and prismatic, having now a 

 tail of 10° in length tapering otf to a point, diametrically op- 



