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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/C1/97" 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 Bertrand de Lacoste to Henry Oldenburg, dated at Hamburg</dc:title>
  <dc:description>Correspondent states that he has invented a machine which he would be willing to show the Royal Society
Read to the Royal Society on 18 February 1699</dc:description>
  <dc:date>30 January 1669</dc:date>
</rdf:Description>