<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/1/11/2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished diagram, illustration of trisection of angles by [Barnabé Brisson?]</dc:title>
  <dc:description>An unpublished diagram illustrating the problem of the trisection of angles as explained by the author, possibly Brisson.

Subject: Mathematics</dc:description>
  <dc:date>[late 18th century]</dc:date>
</rdf:Description>