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ABSTRACT PERIODICITIES. AN annual periodicity was early suspected in my own observations in England. At the time of writing, observations lasting over five years are available, so far as the
auroral component is concerned. To examine impartially whether or not an annual variation is present, the observations of each calendar month (say, November 1926) are averaged, and the mean
is adopted as representative of that particular month, without further reference to the data for individual nights. Access through your institution Buy or subscribe This is a preview of
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ADDITIONAL ACCESS OPTIONS: * Log in * Learn about institutional subscriptions * Read our FAQs * Contact customer support Authors * LORD RAYLEIGH View author publications You can also search
for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE RAYLEIGH, L. Some Recent Work on the Light of the Night Sky1.
_Nature_ 122, 351–353 (1928). https://doi.org/10.1038/122351a0 Download citation * Issue Date: 08 September 1928 * DOI: https://doi.org/10.1038/122351a0 SHARE THIS ARTICLE Anyone you share
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