<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/24/72" 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 Peter Guthrie Tait, 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 PT for papers on energy. Discusses topics of the papers, including quaternions and the concept of heat equalling motion.</dc:description>
  <dc:date>1864-12</dc:date>
</rdf:Description>