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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/17/390a" 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 John Tyndall, dated at Collingwood</dc:title>
  <dc:description>Contemporary copy of the letter. Remarks on John Tyndall's papers on radiant heat and related role of moisture. Will send requested sample of rock salt. Explains difficulties using it and hopes John Tyndall will have better success, perhaps even repeating John Frederick William Herschel's experiments.</dc:description>
  <dc:date>12 April 1862</dc:date>
</rdf:Description>