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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/S2/47" 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 Robert Simson [to the Royal Society]</dc:title>
  <dc:description>Wishes to know if there are any new series deduced from Gregory's series in order to find the arch of a circle from the tangent; asks if the lost proposition in 'Pappus Alexandrinus' had been recovered</dc:description>
  <dc:date>4 January 1723</dc:date>
</rdf:Description>