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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/18/314" 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 Samuel Young to Sir John Herschel, dated at Formosa Cottage</dc:title>
  <dc:description>Autograph letter signed by sender. Mineral apophyllite [Argentine spar]. Offers gems and minerals from India for John Frederick William Herschel's experiments. David Brewster's papers raise questions about polarized light. Describes microscope Samuel Young found.</dc:description>
  <dc:date>17 June 1819</dc:date>
</rdf:Description>