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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/MS/743/1/50" 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 David Brewster, Duncliffe, Edinburgh to [John Hall] Gladstone</dc:title>
  <dc:description>Wishes to make use of Gladstone's letter on lighthouses in support of his claim with the Board of Trade. Gives a chronology of his argument with the Stevensons on precedence in the invention of dioptric apparatus..</dc:description>
  <dc:date>15 March 1861</dc:date>
</rdf:Description>