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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/16/1/4" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished diagrams, perpetual motion machine by A B</dc:title>
  <dc:description>Two drawings of A B's perpetual motion machine plan. The first diagram is labelled and corresponds to the text, illustrating how the machine would work using an air pump, pistons, levers and a wheel. The second drawing is a sketch of the air pump and levers.</dc:description>
  <dc:date>January 1831</dc:date>
</rdf:Description>