APPENDIX. 621 



bright, about 3° SO 7 high, and a light breeze prevailed 

 from E. S. E. ; still the needle was moving between 

 1° 1C/ E. and 1° 30' E. Thermometer, observatory, 

 — 33J°, air, — 37°, sun, — 36. 



January 15th. — There was a calm nearly all day, 

 the weather sometimes clear, sometimes overcast, and 

 the needle had been found always vibrating slowly and 

 unequally. At 10 h p.m. the moon bore E., and was 

 dimly seen through the grey haze that overcast the sky : 

 I found the needle moving at 1° 00' E., and immedi- 

 ately ran out, but could not detect any aurora, except 

 by a softened flaky appearance for a moment at S.E., 

 at an angle of about 45° ; on my return, the needle was 

 still vibrating at 1° 20' E., from which it went at once to 

 7° 50' E., the farthest I ever saw ; it then returned to 

 6° 40' E., to 6° 00' E., to 6° 20' E., to 4° 50' E., to 

 5° 00' E., to 1° 30' E., to 2° 25' E., to 1° 05' E., to 

 2° 00' E., to 1° 25' E., to 2° 55' E., to 2° 12' E., to 

 3° 00' E., to 2° 10' E., to 2° 00' E., to 1° 40' E., to 

 2° 12' E., to 0° 50' E., to 0° 30' W., to 0° 02' W., to 

 0° 20' W., to 0° 30' E., 0° 20' E., 1° 00' E., 0° 30' E., 

 1° 20' E., 1° 05' E., 1° 15' E., 0° 50' E., 1° 02' E., 

 0° 35' E., 0° 00', 0° 40', W., 1° 00' W., 0° 40' W., 

 0° 30' W. 



Time at beginning 16*» 09 m 00 s 



ending 16 20 00 



Interval 1 1 00 



Thermometer, observatory, — ] 7°, air, —20°. Wind 

 N.E. Weather, overcast and hazy. The aurora was 

 bright before it was overcast. 



February 1st. — The weather had been particularly 

 fine and clear all dav, though the needle had been either 

 slowly moving, or tremulous, or swagging, which I term 

 agitated. The sun was bright, and had the power to 



