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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/2/142" 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 Sir John Herschel to Charles Babbage, dated at Slough</dc:title>
  <dc:description>Autograph letter signed by sender. It looks as though their projected Cornish excursion will have to be postponed for a time. Gives the formula for the conversion of rags into sugar. A Finnish astronomer wishes to be elected a member of the Astronomical Society. Observations on the theory of parallax.</dc:description>
  <dc:date>12 August 1820</dc:date>
</rdf:Description>