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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/O2/70" 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 Henry Oldenburg to Monsieur [Samuel] Fermat, dated at London</dc:title>
  <dc:description>Information exchange - Samuel Moreland's trumpet, and discusses Newton's reflecto-refracting telescope</dc:description>
  <dc:date>25 January 1672</dc:date>
</rdf:Description>