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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/23/193" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy letter, from Sir John Herschel to Edward Sabine, dated at Collingwood</dc:title>
  <dc:description>Copy of a letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Thanks Edward Sabine for his paper. Sun spot activity should increase in 1857. Discusses his own earlier ideas concerning relationship between sun spots and Aurora Borealis.</dc:description>
  <dc:date>3 April 1857</dc:date>
</rdf:Description>