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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/22/118" 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 William Henry Smyth, dated at Collingwood</dc:title>
  <dc:description>Copy of a letter. Thanks William Henry Smyth for C. P. Smyth drawings of Cape monument and Gamma Virginis observations. Notes Johann Heinrich Mädler's work on double stars and the doubt that they obey the inverse square law. Discusses use of photography in astronomy.</dc:description>
  <dc:date>26 May 1842</dc:date>
</rdf:Description>