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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/NLB/24/80" 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 Robert William Frederick Harrison, to unknown recipient</dc:title>
  <dc:description>Asks to know when is a proof of J Walker's paper 'The Differential Equations of Fresnel's Polarisation-Vector, [with an Extension to the Case of Active Media]', going to be delivered. It is only a short paper and was sent on 14 February.</dc:description>
  <dc:date>28 February 1902</dc:date>
</rdf:Description>