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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/5/19" 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 P [Johannes] Bertet, Paris, a French Jesuit to John Wallis</dc:title>
  <dc:description> ' Concerning divers Geometricall matters; and the present endeavours and labors taken abroad in Mathematicks. '

Includes mathematical diagrams</dc:description>
  <dc:date>1 December 1671</dc:date>
</rdf:Description>