<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/34/10/9" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished figures, beta prisms by William Bird Herapath</dc:title>
  <dc:description>Two figures in coloured ink, labelled figure 12 and figure 14, showing circles with angles labelled on them, illustrating the points at which the prisms allow the most light through as they  rotate through 360 degrees.

Subject: Chemistry / Optics</dc:description>
  <dc:date>19 January 1854</dc:date>
</rdf:Description>