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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/14/1" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished extract and letter, 'A problem to trisect the arc of a circle, the solution of which, has, (it is presumed), been hitherto unknown' by W [William] Barnes</dc:title>
  <dc:description>Printed paper in which Barnes illustrates his method of trisecting the arc of a circle, including a demonstration example. Preceded by a covering letter for AP/14/1-3 from Barnes to the Secretary of the Royal Society.

Subject: Mathematics</dc:description>
  <dc:date>[1830]</dc:date>
</rdf:Description>