228 PHILOSOPHICAL TRANSACTIONS. [aNNO 17 J 6. 



and the luminous arc, with its black basis, settled down very low in the 

 northern horizon. 



The same two nights, by the observation of Mr. Wm. Lingen, the like 

 appearance was seen at Dublin, about the hours of Q or 10; at which time, 

 in the former night, it was near as light as in a moon-light night. And from 

 France we have an account, that both those nights, the same was seen at Paris, 

 with much the same circumstances as at Dublin. So that it seems this meteor, 

 though no ways comparable to that of the 6th of March, was seen not less 

 than 1 50 leagues, and probably much farther. 



The following night, April 2, when it began to be dark, a luminous arc 

 appeared in the north, with a very narrow black bottom under it, very low, 

 and depressed to the horizon; nor was it seen at, or about London, to project 

 any pointed rays as the former. 



But what was most remarkable, that evening, what was seen at London, by 

 that ingenious gentleman Martin Folks, Esq. R. S, S. about Q that night. 

 He being in the open air at that time, saw in an instant, a bright ray of 

 very white light, appear in the east, out of the pure sky, then very serene 

 and still: it very much resembled the tail of a comet, and was about 20° 

 inclined from the perpendicular to the right, beginning about y of Bayer 

 in the corona borea, and terminating about the informis by some called 

 Cor Carol i. This having appeared only a very short time, disappeared at 

 once, as in a moment. When on a sudden, such another beam was in- 

 stantly produced, not exactly in the same place, but in the same situation. 

 Its lower end being about 20^ high, was terminated exactly between x and y, 

 in the right hand and arm of Hercules, and the middle of it passed over 

 <r and f in the girdle of Bootes, and thence proceeded westwards, leaving 

 Cor Caroli 4 or 5 degrees to the northwards. After it had continued in this 

 situation near 10 minutes immoveable among the stars, it began to move 

 slowly towards the north : and the lower end passing over the northern 

 edge of the crown, and the ray itself over Cor Caroli, it grew fainter, and 

 vanished, having continued in all about 20 minutes. This latter, with some 

 interruptions, was extended between Castor and Pollux, very far into the 

 west. And about that time, the same, or such another beam, was seen at 

 St. Asaph, by Dr. Stanley, the Rev. Dean of that church. 



tfu . ' 



