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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/W1/120" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Letter, from John Wallis to Henry Oldenburg, dated at Oxford</dc:title>
  <dc:description>Concerning the nature of gravitation; concerning the experiment with an air-pump which was carried out by Huygens in 1661
Read to the Royal Society on 18 May 1671</dc:description>
  <dc:date>13 May 1671</dc:date>
</rdf:Description>