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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/G1/22" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Extract of a letter, from James Gregory to Mr [John] Collins</dc:title>
  <dc:description>Discussing the telescopic lenses which Isaac Newton took issue with</dc:description>
  <dc:date>23 September 1672</dc:date>
</rdf:Description>