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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/D1/62" 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 William Derham to Edmond Halley, dated at Upminster</dc:title>
  <dc:description>Observations of Jupiter and its satellites and an enquiry about the distances, diameters and periods of the planets</dc:description>
  <dc:date>17 August 1714</dc:date>
</rdf:Description>