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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/12/11" 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 James McCullagh to Sir John Herschel, dated at Trinity College Dublin</dc:title>
  <dc:description>Autograph letter signed by sender. Has been on the Continent, which accounts for the delay replying to John Frederick William Herschel's letter of June. Regrets he cannot give an answer to John Frederick William Herschel's queries regarding the constitution of the ether. Fears his hypothesis on the density of the ether is not clear as it has misled John Frederick William Herschel. Has read Michael Faraday's papers with eagerness.</dc:description>
  <dc:date>2 October 1846</dc:date>
</rdf:Description>