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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/6/287" 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 Augustus De Morgan to Sir John Herschel, dated at 7 Camden St.</dc:title>
  <dc:description>Autograph letter signed by sender. Many thanks for his invitation, but he does not intend going to Eastbourne. Further remarks on his own theory regarding the marriage of Isaac Newton's niece.</dc:description>
  <dc:date>25 August 1856</dc:date>
</rdf:Description>