. Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 [microform]. Scientific expeditions; Expéditions scientifiques. No. III.] AURORA BOREALIS. 669 curtain. It extended from 99° to 200°, At midnight, a waving arch of low elevation from 76° to 21-2°, Needle had moved 45' westward since nine. 21st. At 7h. p. m., some streams of cloud which resembled the Aurora in shape and colour crossed the zenith; but, when the daylight disappeared, no Aurora was visible. 23d. At lOh. 30m. p. m., Aurora first appeared in an arch from 279'' to 189°; elevation 12°. Needle mo
. Narrative of a journey to the shores of the Polar Sea, in the years 1819, 20, 21, and 22 [microform]. Scientific expeditions; Expéditions scientifiques. No. III.] AURORA BOREALIS. 669 curtain. It extended from 99° to 200°, At midnight, a waving arch of low elevation from 76° to 21-2°, Needle had moved 45' westward since nine. 21st. At 7h. p. m., some streams of cloud which resembled the Aurora in shape and colour crossed the zenith; but, when the daylight disappeared, no Aurora was visible. 23d. At lOh. 30m. p. m., Aurora first appeared in an arch from 279'' to 189°; elevation 12°. Needle moved westward 1° 11'. 27th. At midnight, Aurora appeared through the haze in two low arches, from 99° to 189°. 29th. Aurora beamed through the haze in low streams of faint yellow colour. - 30th. At llh. 40m., some patches of Aurora at 144°, elevated 20°. No motion perceptible in the needle. May 1st. The coruscations were very agitated and brilliant between llh. and midnight, but they did not produce any change in the needle. 3d. Midnight, Aurora proceeded from a mass of dense cloud, bearing 99°, passed near the zenith to 257°. The attenuated beams of which this arch was composed, had a quick lateral motion. Little change in the needle. Daylight in the eastern part of the sky, 5th. A faint stream proceeded from 144° to an elevation of 45°. Nee"^';" moved westward. I did not observe any Aurora after this day, but Mr. Hood saw it on the fith, 10th, llth, 12th, and 13th, after which date there was constant daylight, which prevented us from seeing it. 4 D. ni. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Franklin, John, Sir, 1786-1847. London : J. Murray
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Keywords: ., bookcentury1800, booksubjectscientificexpeditions, bookyear1823
