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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/6/70" 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 Christian Huygens, Paris, to Henry Oldenburg</dc:title>
  <dc:description> ' Concerning his booke de Motu Pendulorum, and the Lord Brouncker's demonstration of the Cycloid, as also the circular pendullum, and Slusius his demonstartion of the method of Tangents. '

Note in margin ' This letter is to precede that of p. 164 and the date of it is after the new style : which is to be taken notice of, because that of p. 164 is an answer to this. '</dc:description>
  <dc:date>24 June 1673</dc:date>
</rdf:Description>