Arctic Auroræ

Abstract

IT will probably interest some of your readers to know that in reply to a communication lately addressed by me to the Admiralty I am informed that Captain Sir George Nares reports that although the auroral glow was observed on several occasions between October 25, 1875, and February 26, 1876, true auroræ were seldom observed, and the displays were so faint and lasted so short a time that the spectroscopic results were not considered worthy of a special report. Although the citron line was seen occasionally, on only two occasions was it well defined, and then for so short a time that no measure could be obtained. A report is preparing with a view to compare the auroral displays with magnetic disturbance, meteorological changes, and other phenomena which will include the few spectroscopic observations obtained.