<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/14/9/3" 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Unpublished diagram, five sets of light rings by John Herapath</dc:title>
  <dc:description>Figure 2 showing five sets of light rings surrounded by a larger light ring, observed in Herapath's experiments.

Subject: Optics

Written by Herapath in Cranford [London]. Received by the Royal Society on 17 June [1830].</dc:description>
  <dc:date>15 June 1830</dc:date>
</rdf:Description>