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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/19/151" 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 Jacques Babinet, dated at Collingwood</dc:title>
  <dc:description>Copy of a letter. Suggestions on improving Jacques Babinet's gravimetric balance, constructed on principle of 'Bifilar suspension.' Refers to 1861 report of similar invention by J. A. Brown and another article on this topic.</dc:description>
  <dc:date>19 February 1863</dc:date>
</rdf:Description>