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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/12/204" 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 Thomas Maclear to Sir John Herschel, dated at Royal Observatory</dc:title>
  <dc:description>Autograph letter signed by sender. Captain [F. W.?] Grey has just been to the Observatory as he wished to ascertain the error of his chronometers. Outlines the signalling devices adopted. Fine definition last evening. Will call on Saturday if convenient.</dc:description>
  <dc:date>15 December 1835</dc:date>
</rdf:Description>