<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/38/21/22" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished figure, three inch aperture by Antoine Claudet</dc:title>
  <dc:description>A small drawing, labelled figure 21, illustrating Claudet's comments about viewing two images side by side through a three inch aperture.

Subject: Physics / Optics</dc:description>
  <dc:date>1856</dc:date>
</rdf:Description>