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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/21/61" 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 letter, from Sir John Herschel to Mary Somerville, dated at Slough</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. Sends new translation of [P. S. Laplace's] Mecanique celeste. Says her revision [of Mary Somerville's Mechanism of the Heavens] has been effective. Still doubts the derivation of the fundamental equation. Discusses force, resistance, and reaction with regard to this equation.</dc:description>
  <dc:date>9 March 1830</dc:date>
</rdf:Description>