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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/W1/142" 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>Discussing his reply to Huygens' letter dated 27 September 1672 about methods for finding tangents which he had used in his work on conic sections of 1656</dc:description>
  <dc:date>2 October 1672</dc:date>
</rdf:Description>