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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/PP/17/25/2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished photograph, spectrum by George Higgs</dc:title>
  <dc:description>A photograph of a spectrum to accompany Higgs' paper 'On the bisulphite compounds of alizarin-blue and coerulin as sensitisers for rays of low refrangibility'. The caption reads 'Great A head and portion of fluting or "tail" illustrative of paper on bisulphite compounds of alizarin blue and coerulin'.

Subject: Physics / Spectroscopy</dc:description>
  <dc:date>1891</dc:date>
</rdf:Description>