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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/1/44" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy extract of a letter from Christian Huygens, Paris, to Robert Moray</dc:title>
  <dc:description>Concerning the finding of the longitude, by observing the Circumjovialists; the descent of Mercury; and the use of long Telescopial glasses without a Tube, a diamond shining in the dark upon friction</dc:description>
  <dc:date>9 December 1663</dc:date>
</rdf:Description>