VIII. Description of a set of halo's and parhelia, seen in the year 1771, in North-America

Abstract

“ January 22, 1771. Laft night and to-day the froft has been more fevere than at any time this w inter: I was hardly able, at mid-day, to keep my face to the wind uncovered,, though the fun fhone very bright, and the Iky clear; “ In the morning the wind was eafterly, which went aboutr Wrth the fun to the fouth and weftward, returning to the eaft in the evening; a very fmall breeze. u A little before two o’clock P.M. obferved as follows. There was a very large circle or halo round the fun (fee Tab. V .) within which the fky was thick and dufky, th e reft of thehemifphere being c l e a r a n d , a little more than one-third way from the horizon to the zenith, was a' beautifully enlightened; circle, parallel to the horizon, which went quite round, till the two ends of it terminated in the circle that furrounded the fu n ;; Read December 7, 1786..