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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/7/309" 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 James David Forbes to Sir John Herschel, dated at Edinburgh</dc:title>
  <dc:description>Copy letter in John Herschel's hand. Includes diagram. Sympathizes with John Frederick William Herschel's feelings of regret over actinometer readings. Has procured a new thermometer and carried out experiments toward correction of actinometers.</dc:description>
  <dc:date>4 March 1847</dc:date>
</rdf:Description>