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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/O1/109" 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 Henry Oldenburg to Edward Brown, dated at London</dc:title>
  <dc:description>Sends a number of queries about the making of lead and silver from ore; gives prices for making ore from the smelting mills in Cardiganshire, Wales</dc:description>
  <dc:date>19 March 1669</dc:date>
</rdf:Description>