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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/19/81" 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 Sir John Herschel to William Radcliffe Birt, dated at Collingwood</dc:title>
  <dc:description>Autograph letter signed by sender. L. A. J. Quetelet's observations follow centigrade thermometer and French meter. Latitude and longitude for five sites. Three sites are unknown to John Frederick William Herschel. Hopes William Radcliffe Birt completes [reduction of barometer observations] before B.A.A.S. meeting.</dc:description>
  <dc:date>18 July 1840</dc:date>
</rdf:Description>