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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/17/405" 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 John Tyndall to Sir John Herschel, dated at Royal Institution</dc:title>
  <dc:description>Autograph letter signed by sender. Continues experiments with carbonic acid and electric light [see John Tyndall's 1868-11-30], hoping to 'explode' idea that atmosphere's polarization is due to reflection by air particles.</dc:description>
  <dc:date>1 December 1868</dc:date>
</rdf:Description>