APPENDIX. 



603 



blue colour, and studded with twinkling stars. The 

 thermometer in the air was — 22 J°, and in the observ- 

 atory — 16°, and there was a light breeze from W.N.W. 

 At 1 l h there was no aurora. 



January 14th. — At 9 h a.m. mean of thermometers 



— 59° ; the sky clear in the zenith, but misty about the 

 horizon. Needle 0° 58' E., slightly vibrating. As the 

 sun rose above the adjacent mountain, it began to move 

 between 1° 40' and 50' E. At 10 h p.m. thermometer 



— 55°, sky deep blue, weather calm. The aurora was 

 generally diffused from rays at N.W.b.N., and E.b.S. 

 to an attenuated arch across the zenith, emanating from 

 N. E. b. E., and extending to W. But from the same 

 point, and as far as due east, rose a clear serpentine beam 

 which took a southerly direction at an angle of 25°, 

 and terminated in an obtuse point at W.S.W., 3° high. 

 Some wreaths, and four very singularly shaped beams, 

 were for a time apparently stationary at E. N. E. and E., 

 the latter were almost at right angles to the arch, as 



"/ ; "* v ^*^. 



