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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/18/13" 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 James Thomas Walker to Sir John Herschel, dated at 24 Blessington Road, Lee, Blackheath</dc:title>
  <dc:description>Autograph letter signed by sender. Received John Frederick William Herschel's two letters acknowledging receipt of 'Volume of Tables of Heights' of the Great Trigonometrical Survey of India. Hopes to visit John Frederick William Herschel and discuss phenomenon of terrestrial refraction. Received valuable assistance on tables from John Frederick William Herschel's son John.</dc:description>
  <dc:date>2 January 1864</dc:date>
</rdf:Description>