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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/22/274" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy of draft letter, from Sir John Herschel to James McCullagh, dated at Collingwood</dc:title>
  <dc:description>Copy of draft letter, copied as part of the correspondence project led by Colonel John Herschel FRS following the death of his father. Has just received his remarkable paper on the dynamical theory of crystalline reflection and refraction. Comments on this. The subject has not lately occupied his attention. Would like clarification on some points.</dc:description>
  <dc:date>27 June 1846</dc:date>
</rdf:Description>