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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/16/21/2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished letter, regarding instructions for making meteorological and magnetic observations from  A T [Adolph Theodor] Kupffer to Colonel Jackson</dc:title>
  <dc:description>Covering letter to Colonel Jackson at the Royal Geographical Society, introducing the paper.

Written by Kupffer in St Petersburg [Russia]. The letter is dated '6/18 Mai 1836' to account for both the Julian and Gregorian calendars.</dc:description>
  <dc:date>18 May 1836</dc:date>
</rdf:Description>