<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/HS/6/247" 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 Augustus De Morgan to Sir John Herschel, dated at 7 Camden St.</dc:title>
  <dc:description>Autograph letter signed by sender. Has been hunting John Frederick William Herschel's proposition through the books and finds that it has dropped out of use, though the older geometrical books include it.</dc:description>
  <dc:date>30 November 1848</dc:date>
</rdf:Description>