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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/6/179" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Letter, from Augustus De Morgan to Sir John Herschel, dated at 5 Upper Gower St.</dc:title>
  <dc:description>Autograph letter signed by sender. Has received the catalogue and it will be sent to the press. Is grateful for John Frederick William Herschel's offers. Does he know anything of Bullialdi's (Ismael Boulliau) Astronomica philolaica? Refers to Franciscus Vièta's Harmonicum coeleste. 25 copies of John Frederick William Herschel's latest paper has been forwarded.</dc:description>
  <dc:date>16 October 1832</dc:date>
</rdf:Description>