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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/22/124" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy letter, from Sir John Herschel to C. A. von Steinheil, dated at Collingwood</dc:title>
  <dc:description>Copy of letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father.  Thanks for suggestion of gold plating the telescope mirrors. Mentions idea of mounting a reflector horizontally but finds its execution 'insufferable'. Thanks for work on photometric measurement of light of stars. Disagrees on some results. Encloses new photographic specimens.</dc:description>
  <dc:date>16 June 1842</dc:date>
</rdf:Description>