<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/LBO/30/65" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Copy letter from Constantine Hugens [Huygens]de Zulichem to Henry Oldenburg</dc:title>
  <dc:description>Written at Haye
 ; Concerning his Son's [Christian] Invention of the circular Pendulum  etc. '</dc:description>
  <dc:date>29 March 1675</dc:date>
</rdf:Description>