<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/B1/11" 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 William Brouncker to Christiaan Huygens</dc:title>
  <dc:description>Part of an autograph letter concerning a book to be sent by Huygens copied for Henry Oldenburg, titled  'Part of my lettre to M Hugens of June 23 1673'. Note stated: 'Translation entered Letter book 6, 165'
Verso side has the principle upon which Brouncker made his demonstration of the cycloid written by Oldenburg

Subject: Mathematics</dc:description>
  <dc:date>23 June 1673</dc:date>
</rdf:Description>