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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/66/29/3" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished map, 'Curves of equal magnetic declination or variation' by E W [Ettrick William] Creak and Henry Wilde</dc:title>
  <dc:description>A Mercator projection (or cylindrical map projection) with curves of equal magnetic declination or variation across its surface in black and red ink.

Subject: Magnetism</dc:description>
  <dc:date>1880</dc:date>
</rdf:Description>