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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/2/288" 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 Charles Babbage</dc:title>
  <dc:description>Autograph letter signed by sender. Regarding Charles Babbage's machine. Edward Ryan's visit. Events at the Cape. Failure of his astronomical observations due to cloud conditions. Has been trying to stir up the South African Philosophical Society. Recent South African expedition.</dc:description>
  <dc:date>23 December 1834</dc:date>
</rdf:Description>