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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/12/223" 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. Examined the base line on Tuesday; gives a resume of the operations. On Monday night observed the Polar stars; comments on the disappearance of certain stars in the Brisbane catalogue. Thinks a chain is preferable to deal rods in measuring base lines.</dc:description>
  <dc:date>9 November 1837</dc:date>
</rdf:Description>