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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/26/41" 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 Michael Faraday</dc:title>
  <dc:description>Contemporary copy in sender's hand, signed by sender. Sends Michael Faraday some older samples of imperfect glass. Talks about the way in which different kinds of glass should be layered in lenses.</dc:description>
  <dc:date>26 October 1828</dc:date>
</rdf:Description>