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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/17/304a" 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 Fox Talbot, dated at Collingwood</dc:title>
  <dc:description>Copy letter in John Herschel's hand. Congratulates William Henry Fox Talbot on the calotype invention and the patent. Responds at some length to William Henry Fox Talbot's concerns about the infinity of the universe. In postscript, provides a 4-page dialogue on the subject.</dc:description>
  <dc:date>22 March 1841</dc:date>
</rdf:Description>