<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/17/224" 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 Thomas Spencer to Sir John Herschel, dated at 192 Euston Road</dc:title>
  <dc:description>Autograph letter signed by sender. Explains and encloses abstract of paper on action of magnetic oxides under various conditions. Discusses their purifying influence on water.</dc:description>
  <dc:date>12 November 1859</dc:date>
</rdf:Description>