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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/2/113" 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. Regarding the disposal of the tourmaline. Address of his cousin. Drawing and description of the apparatus for experiments on tourmaline. Chemical experiments.</dc:description>
  <dc:date>25 March 1819</dc:date>
</rdf:Description>