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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/20/90" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy of letter, from Sir John Herschel to David Brewster</dc:title>
  <dc:description>Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Sending all his papers on the deviations of tints, suitably amended to give David Brewster due acknowledgement. Queries regarding some of David Brewster's statements. Supports his theories in a new paper he has written for the Cambridge Philosophical Society. Includes graphs</dc:description>
  <dc:date>19 April 1820</dc:date>
</rdf:Description>