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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/PT/58/15/2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Plate, light falling perpendicular to surface of medium by unknown artist</dc:title>
  <dc:description>Figure 1 showing light falling perpendicular to the surface of the medium.

Subject: Chemistry

Published in Philosophical Transactions as 'Photo-chemical researches.—Part III. Optical and chemical extinction of the chemical rays'.

Written by Bunsen and Roscoe in London. Communicated by Professor [George Gabriel] Stokes. Received by the Royal Society on 20 May 1857. Read 18 June 1857.</dc:description>
  <dc:date>[1857]</dc:date>
</rdf:Description>