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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/5/114" 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 Monsieur Huygens, Paris, to Henry Oldenburg</dc:title>
  <dc:description> ' Containing his thoughts upon Monsieur Slusius his last letter about the Probleme of Alhaneri ; as also his opinion of Mr Newtons Theory of Colours, and Dr Wallis's new Methods of Tangents. '</dc:description>
  <dc:date>27 September 1672</dc:date>
</rdf:Description>