RECORD OF AURORAL PHENOMENA. 55 



November, 1849. 



" 3d. The night very fine and clear, and freezing intensely; a slight Aurora to the northwestward. 

 12th. A fine Aurora visible, principally in the south and west quarters. 



13th. A fine Aurora at night, extending from east, through the zenith, to west, in an irregular 

 curve." — Ibid., p. 158. 



March, 1850. 



"1st. Cloudy; very mild weather ; wind moderate, from south. In the early evening, the Aurora 



was dully displayed from S. to S. W. by W., in a segment of about 25° altitude at the centre; 



vertical short thick rays proceeding from its upper edge. About lib., the sky cleared, and wind 



came from E. S. E. moderate. 

 3d. About lOh. p.m., a beautiful broad streak of Aurora extended from N. W., through the 



zenith, towards S. E., of a pale yellowish green and very bright. Later, it spread all over the 



sky, and, moving incessantly, threatened an increase of wind. 

 5th. A cold breeze from N. W. ; weather cloudy. The night clear and cold. In the early part, 



an arch of Aurora was visible from 5. E. to E. N. E., of inconsiderable altitude and little 



brilliance; the rays colored pale yellowish green. 

 6th. Rather sharp in the morning. A fine sunny day, with a fresh breeze from S. S. W. The 



night very clear and nearly calm. A light vein of Aurora at E. S. E. 

 "Tth. Very fine and clear; a fresh breeze from the southward. The morning cold. The night 



fine, clear, and cold. Midnight, a broad wave of Aurora from east, through the zenith, to west. 

 8th. Night fine and clear; a slight Aurora to the eastward. At lOh. p. m., a broad arch of 



Aurora from E. to N. N. W. ; altitude at centre about 30°. Calm. 

 10th. In the evening there were visible three bright rays of Aurora, all proceeding from the east ; 



later the Aurora spread all over the sky. 

 11th. The wind has been very unsteady during the day, but blew principally from N. E., especially 



when strongest. The weather has been exceedingly mild, and even oppressive, despite the strong 



breeze. At 9h. p. m., the sky was still overcast. There was a dull but distinct arch of Aurora 



from E. to S. W., the centre having about 35° of altitude. 

 13th. At 2h. a. m., -there was a fine Aurora spread over the sky, and in particular a large mass 



about 20° N. E. of the zenith; the wind was also gentle from N. E., and the sky cloudless; a 



great deal of rime was falling, apparently from the large mass before mentioned. 

 The day fine and rather cold. At lOh. p. m., a broad and bright irregular arch of Aurora extended 



from S. E. to W.N. TV., the centre having about 60° of altitude. There was at this time a 



gentle westerly breeze, from which quarter the wind has been all day, light, and a rime fell, as 



last night, and again, as it seemed to me, proceeded from the Aurora. 

 14th. About lib. p. m., there was an Aurora visible of a pale green hue, extending from S. E. 



towards W. S. W. in a regular arch, thence swerving to W. N. W. 

 15th. At lh. a. m., the Aurora changed its position and appearance greatly, now proceeding from 



E. S. E., in two branches, towards north and west. These united at about 50° altitude, N. W. 



of the zenith, and a large body of light between them passed through the zenith and joined the 



main branch or stem at their junction, thence a beautiful stream led nearly down to the horizon 



at N. W. 

 A fine Aurora at lOh. p. m. from E. S. E., through the zenith, to W. N. W., in two broad streams, 



in vertical waves like a heavy curtain ; the lights and shades beautifully alternating, and, as last 



night, the rays of a pale yellowish green hue. 

 lGth. A very fine cold day; wind blowing strongly from N. N. W. until the afternoon, when it 



moderated. The evening calm, mild, and overcast. A very faint appearance of Aurora at 



midnight to the S. E. 

 '11th. A little snow fell in the small hours, but the day became very fine, sunny, cloudless, and calm. 



The night fine and very clear. A beautiful pale-green 'curtain' Aurora from east, through 



the zenith, to west. 

 21st. A very little thin snow was falling this morning when we rose, but it soon ceased, and the 



day became fine and clear, a moderate breeze blowing from the N. W. The night calm and 



