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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/6/140" 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 Warren de La Rue to Sir John Herschel, dated at 110 Bunhill Row</dc:title>
  <dc:description>Autograph letter signed by sender. Has not been able to go to Kew Observatory yet. The photoheliograph has to await John Welsh's return from Scotland. A reflector with a diagonal mirror would be suitable for celestial objects. Has now removed to Cranford.</dc:description>
  <dc:date>28 September 1857</dc:date>
</rdf:Description>