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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/12/124" 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, Cape of Good Hope</dc:title>
  <dc:description>Autograph letter signed by sender. Work will begin on obelisk at Feldhausen. Occultation of Gamma1 and Gamma2 Virginis observed. Triangulation survey will take Thomas Maclear away from Royal Observatory for extended time. Slave ship carries small pox and causes outbreak. Parallax observations show brightest stars, not nearest.</dc:description>
  <dc:date>19 February 1840</dc:date>
</rdf:Description>