<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/RBO/4/14" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>A Cypher of Mons. Christian Huygens de Zulichem </dc:title>
  <dc:description>'Containing an Invention of his, which he not thought fit to make publick as yet, but would secure it to himself this way; which he sent to the Royal Society in a letter of his dated 6 February 1669 (st. no.) and exhibited to the said Society 4 February 1669'</dc:description>
  <dc:date>4 February 1669</dc:date>
</rdf:Description>