Edinburgh New Philosophical Journal edinburghnewphil48edin Year: 1849 - 1850 '>i-ixon '^^777^7Z- Halo observed at Pictou, Nova Scotia, August 23, 1849. Fig. 2 represents the halo, as drawn by the writer at Pic- tou, with the aid of sextant measurements, made by Mr James Yorston of this place, and the following are the notes taken at the time :— ' The altitude of the sun, at 33 minutes past 3, was 33° 40' 30'. The wind was light, and from the north-west; and the sky was covered by a thin cirro-stratus, curdled into small patches, and distinctly, though iri'egulaidy, fibrous. This cloud a
Edinburgh New Philosophical Journal edinburghnewphil48edin Year: 1849 - 1850 '>i-ixon '^^777^7Z- Halo observed at Pictou, Nova Scotia, August 23, 1849. Fig. 2 represents the halo, as drawn by the writer at Pic- tou, with the aid of sextant measurements, made by Mr James Yorston of this place, and the following are the notes taken at the time :— ' The altitude of the sun, at 33 minutes past 3, was 33° 40' 30'. The wind was light, and from the north-west; and the sky was covered by a thin cirro-stratus, curdled into small patches, and distinctly, though iri'egulaidy, fibrous. This cloud appeared to be the seat of the luminous rings. ' The circle A had a diameter of 45'. Its upper part was bright, and shewed the prismatic colours, and it became gra- dually fainter towards its lower or western side. This I have endeavoured to represent in the figure by the shading,
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