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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/2/31" 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 John Wallis, Oxford, to Henry Oldenburg</dc:title>
  <dc:description>Concerning a rule, 'whereby (for any year assigned the cycles of the Sun and Moon, and the Roman Indiction being given, to find the number of the julian period.'</dc:description>
  <dc:date>16 November 1667</dc:date>
</rdf:Description>