560 



APPENDIX. 



[No. III. 



night. At the first display, when the extremities of the arches pointed near 

 234° and 54°, and the interior motion followed the same direction, the needle 

 moved eastward as far as 345° 00' ; but after midnight, the coruscations ceased 

 to appear in that direction, and at 12h. 10' were presented in three arches, 

 traversing the zenith, whose extremities pointed 121° and 302°: the needle then 

 receded towards the west, and rested at 349° 30', having varied its position 

 5° 40' in the course of twenty minutes. 



February 14th, at llh. 30' a faint low band proceeded from 110° to 178 

 elevated 8° degrees, and another at a higher elevation from 121° to 212°. These 

 streams crossed each other in the bearing 155°; and it may be remarked, that 

 this is the only occasion on which I have seen the streams to cross each other. 

 They separated before midnight : the eastern one ascended some degrees higher, 

 but the other remained in the same state. Cloudless sky. 



15th. At 9h. p. m. Aurora across the zenith from 257° to 76° — None 

 visible at midnight, yet the needle had moved forty minutes westward. 



18th. At 9h. p. m. Aurora gleamed through the horizon in a continuous arch 

 from 279° to 99°. 



19th. At 8h. p. m. Aurora appeared to the eastward in five arches, 

 having the same extremities at 88° and 279° ; the upper arch crossed the 

 zenith, and the others were elevated between 1 5° and 20°. At midnight, two 

 concentric arches appeared through the haze, lying across the zenith, their 

 extremities bore 65° and 245. The needle then pointed to 348° 5', having 

 moved 40° eastward. At 12h. 25' a broad and more brilliant arch crossed the 

 zenith, from 133° to 313° ; the needle then moved westward 1° 5' to 349 



10'. This change is a further confirmation of the observations on February 

 13th. 



20th. At 9h. p. m. beams of light issued at 99°, and pointed towards 

 the zenith. At lOh. 30', a brilliant arch from 99° to 279°, elevated 80 

 small arch in the zenith, and several beams at 279°. At midnight, several 

 beams arose parallel to each other, between 335° and 349°. In a few seconds, 

 flashes were emitted from them, which first darted to the zenith, and then twist- 

 ing round, shot towards a stream that had proceeded at the same instant 

 from 212°, which they joined. The coruscation now resembled an irregular 

 horse-shoe, composed of many slender beams of brilliant light. This display 



