568 



APPENDIX. 



[No. III. 



needle westward. At lOh. 30m., a very irregular arch from 99° to 234°. The 

 interior motion darted rapidly in opposite directions, and the red, purple, and 

 violet colours were exhibited. Numerous slender beams, in which there was 

 a quick lateral motion, shot from this arch ; some of them were projected to 

 the zenith. The arch separated at 121°, and the western portion immediately 

 rushed towards the north, preserving the same elevation ; at this instant, the 

 wind changed from north to the opposite direction, south. At midnight, a 

 horizontal band appeared from 99° to 234°, and several beams to the south- 

 ward. The needle moved eastward 27' between nine and midnight. 



8th. At llh. 10m. p.m., various streams appeared, stratifying a dense 

 mass of cloud. In two parts of this coruscation, the motion darted from 144 

 and 324° towards the zenith ; in another, from 76° to the horizon at 144°. The 

 needle had moved westward 2° 19' since nine. At midnight, a beam rose at 





bearing 65°, and darted to an elevation of 30°. Nearly at the same instant, 

 another beam issued from 9°, and joined this ; and then an arch was formed, 

 terminating in these bearings. Several other masses of light were seen to the 

 eastward. The needle had moved eastward 1° 55' since the last observation. 

 Heavy dark clouds spread over a large portion of the sky. 



1 1 th. At midnight, a faint gleam of Aurora appeared through a very dense 

 atmosphere, and when there was a halo round the moon. 



1 3th. Atmosphere hazy, no Aurora or stars were visible, yet there was a 

 motion of the needle 7° to the westward, between nine and midnight. 



14th. A faint arch from 313° to 133° at midnight. 



15th. At 9h. several brilliant beams bearing 54°, in which there was 

 much lateral motion and a variety of colours. An arch crossed the zenith 

 from 313° to 133°. Needle moved westward 9'. At midnight, an arch across 

 the zenith from 290° to 110°. Another from 65° to 313°, the motion passing 

 rapidly from the latter to the former horizon. Needle moved a little more 

 westward. 



18th. At midnight, a faint patch bore 144°. 



19th. At midnight, streams of a dense pale yellow light, at a low elevation 

 nearly parallel to the horizon, and extending from 99° to 200°. These were sta- 

 tionary for some hours-^dark clouds lay between them. 



20th. Whilst day-light remained, the Aurora was perceived fringing 

 the upper part of a mass of dense cloud, in shape like the festoons of a 



