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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/23/224" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy letter, from Sir John Herschel to Mary Somerville, dated at Collingwood</dc:title>
  <dc:description>Copy of a letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Lists facts from various astronomical catalogues, such as the number of fixed, double, and binary stars. Discusses parallax. Thanks her for second edition of Physical Geography.</dc:description>
  <dc:date>28 February 1858</dc:date>
</rdf:Description>