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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/34/10/6" 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Unpublished figure, alpha prism by William Bird Herapath</dc:title>
  <dc:description>A figure in black ink, labelled figure 11, illustrating the results of one of Herapath's experiments into the properties of crystals in which a prism is rotated through 360 degrees. The figure shows a circle with angles labelled on it, illustrating the points at which the prism allowed the most light through as it rotated through 360 degrees.

Subject: Chemistry / Optics</dc:description>
  <dc:date>19 January 1854</dc:date>
</rdf:Description>