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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/20/118" 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 Thomas Godfrey, Philadelphia, to the Royal Society</dc:title>
  <dc:description> ' Giving an account of an Instrument (said to be of  his invention) for taking altitudes at Sea by a double Reflection. '

Read to the Royal Society on 31 January 1733</dc:description>
  <dc:date>9 November 1732</dc:date>
</rdf:Description>