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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/H1/66" 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 Christian Huygens to Henry Oldenburg, dated at Paris</dc:title>
  <dc:description>Reiterates his enquiry about Hooke's idea for applying a lodestone to a spring clock because he feels that his previous letter has been mislaid; encloses anagrams of his work which he wants deposited with the Society (see CLP/3i/56); states that the trials for determining longitude with his marine clocks have been successful 
Read to the Royal Society on 21 October 1669</dc:description>
  <dc:date>4 September 1669</dc:date>
</rdf:Description>