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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/7/17" 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 the fourth part of Mr Hugen's  'Book de Motu Pendulorum'</dc:description>
  <dc:date>20 March 1673/1674</dc:date>
</rdf:Description>