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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/CLP/3i/46" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Cyphers, two cyphers by Christian Huygens and Chr [Christpher] Wren</dc:title>
  <dc:description>Paper containing two cyphers, one by Christian Huygens containing an inversion, sent in a letter to the Royal Society on 6 February 1669 and shown to the Society on 21 February 1669. Wren's cypher was communicated the same day and ordered to be sent to Huygens.

Subject: Mathematics

Read to the Royal Society on 4 February 1669 [likely inaccurate given dating surrounding Huygens' cypher].</dc:description>
  <dc:date>[1669]</dc:date>
</rdf:Description>