RECORD OP AURORAL r HE NO MEN A. 59 



which wore highly inclined and exhibited the prismatic colors, the strongest tints being red, 

 yellow, and greeu. 

 The whole of these coruscations appeared to he interposed between the spectator and a thin filmy mass 

 of cloud." — 2 Franklin, cxlviii. 



0( cobeb 27, 1825. 



"A stream of light extending from E. N. E. to the north, at an elevation of 15°. The motion of 



its parts very rapid. 

 A beam from north to the zenith. On reaching that part, it instantly spread across the zenith, 



and its extremities were pointed S. TV. by W. and E. N. E. 

 Another beam from north, which spread across the zenith as the former had done, having its points 



directed W. by S. and E. by X. 

 The whole coruscation then disappeared, and the needle gradually recovered its usual position. 



Interval of time — from midnight to ten minutes after that hour. 

 Remarks on the 21th. — It should be observed that there were two distinct issues of light from 



E. X. E. along the above-mentioned stream, which, on reaching the north point, rushed towards 



the zenith ; and, in both instances, similar arches were formed across the zenith. 

 The needle betrayed the same course of deviation in both cases. 

 The motion of the light was extremely rapid." — Ibid., p. exlix. 



November 2, 1825. 



"Motion of the Aurora rapid from S. S. E. to X. X. TV. across the zenith. Arch the same; 

 direction of motion not noted. 

 Arch across zenith from south to north; motion rapid. 



Arch across zenith from X. X. W. to 8. ; motion X. X. W. to S. Aurora gradually disappearing, 

 and needle stationary at the last position. Interval of time — between lOh. 30m. and lOh. 

 45m. p. m. 

 Remarks on the 2d. — The Aurora this night was extremely brilliant and active, and exhibited the 



prismatic tints. 

 The coruscations commenced with a highly illuminated arch, spreading/ron! S. E. to X. W across 



the zenith, in which part it formed a corona, from whence slender rays were projected perpvu- 



dicxdarly downwards, giving to the coruscation the appearance of a globe with the meridians 



marked upon it. 

 This Aurora originally sprung/«»« a mass of cloud bearing S. S. E., which gradually changed its 



position to the eastward; and, on its reaching the east point, a band of light, resembling the 



fringe of a curtain, rushed forth and extended round the northern horizon at an elevation of 8°. 

 The corona disappeared at the time this latter change took place, and arches were projected in 



rapid succession from S. S. E. to X. X. W., S. to X, and from X. X. W. to S.; all of them 



displaying the most brilliant colors. 

 The needle betrayed its greatest deviation during the projection of the last-mentioned arches, and 



was, in fact, kept in a state of vacillation for about five minutes, approaching towards, or 



recediug from, the true north, according to the apparent motion of the rays of light." — Ibid., p. el. 



December 7, 1825. 



" A bright beam darted from an elevated arch towards the horizon at the X. X. TV. point. A stream 

 from E. S. E. to X. TV., with a rapid vibratory motion in its parts. Coruscations in the form 

 of a horseshoe; motion following that shape. Interval of time, between lib. and llh. 25m. p. m. 



Remarks on the 1th. — The Aurora this night was very generally diffused, and extremely active and 

 brilliant. 



The most remarkable part of the coruscation was three perfect arches, at the several altitudes of 

 40°, 50°, and 90°, having the same points in the horizon. From the lowest of these arches, a 

 beam flashed towards the horizon to X. X. TV., which produced a change in the needle of 2° 45', 

 as above noted. 



TVhen these arches became faiut, a mass of light rushed from E. S. E., aud in its progress to the 



