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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/19/284" 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 Augusta Ada King, Lady Lovelace to Sir John Herschel, dated at Ashley-Combe, Somerset</dc:title>
  <dc:description>Autograph letter signed by sender. Quotes passage from A. E. P. Gasparin comparing John Frederick William Herschel's actinometer to other such instruments. Seeks John Frederick William Herschel's opinion of Adolphe Quetelet's hypothesis of heat. Question on photographic chemicals and 'calorific rays.'</dc:description>
  <dc:date>12 October 1848</dc:date>
</rdf:Description>