<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/14/488" 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 W. Richardson to Sir John Herschel, dated at Brede near Northiam</dc:title>
  <dc:description>Autograph letter signed by sender. Sends sketch of reflecting camera and describes its composition. Can now make reflectors under 7 inches very inexpensively.</dc:description>
  <dc:date>21 April 1862</dc:date>
</rdf:Description>