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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/69/9/2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished figures, crystals by David Esson</dc:title>
  <dc:description>Five figures in black ink, labelled figures III-VII, showing 'some of the curious and beautiful combinations of crystals of lead sulphide' observed during James Ballantyne's research into the metallurgy of lead.

The figures are described on pages 63-64 of the accompanying paper.

Subject: Chemistry</dc:description>
  <dc:date>1893</dc:date>
</rdf:Description>