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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/14/507" 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 G. W. Royston-Pigott to Sir John Herschel, dated at Lansdowne Crescent</dc:title>
  <dc:description>Autograph letter signed by sender. Discusses his thoughts on high powered definition and residual aberration in microscopes. Thinks they may be applicable to telescopes.</dc:description>
  <dc:date>12 December 1870</dc:date>
</rdf:Description>