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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/2/263" 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, dated at [Slough]</dc:title>
  <dc:description>Autograph letter signed by sender. Will come up to town and meet David Brewster. Effect of violet light on chemical compound. Gives some of his recent astronomical observations.</dc:description>
  <dc:date>23 June 1831</dc:date>
</rdf:Description>