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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/H3/66" 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 Robert Hooke to Henry Jacobs, dated at London</dc:title>
  <dc:description>Hooke has collated observations of the eclipse (unclear whether it is of the sun or moon) by Flamsteed at Derby, by Bullialdus and Cassini at Paris, by Hevelius at Gdansk; asks for compass readings ('variation of the magnetic needle') at Lisbon; developments with determining longitude</dc:description>
  <dc:date>10 October 1681</dc:date>
</rdf:Description>