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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/17/302a" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Draft letter, from Sir John Herschel to William Henry Fox Talbot, dated at Collingwood</dc:title>
  <dc:description>Draft in John Herschel's hand. Sends William Henry Fox Talbot a copy of the solar spectrum in which each color is represented clearly in a 'positive' picture. John Frederick William Herschel sees this as giving hope for color photography.</dc:description>
  <dc:date>30 August 1840</dc:date>
</rdf:Description>