<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/11/66" 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 Francis Charles Knowles to Sir John Herschel, dated at Belvedere House, Ryde</dc:title>
  <dc:description>Autograph letter signed by sender. Has received news of a cargo of cryolite from Greenland. Outlines the various possibilities of using it for the manufacture of chemicals and glass. Sends his method of manufacturing aluminium.</dc:description>
  <dc:date>5 December 1856</dc:date>
</rdf:Description>