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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/MS/928/2/59" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Postcard from Alfred Seabold Eli Ackermann, to Charles Vernon Boys, St Marybourne nr Andover, Hampshire  </dc:title>
  <dc:description>Note on 'four 4s' problems, thanking Boys for his solutions up to 106. Ackermann states that Boys's drawing is also of interest.

Alfred Seabold Eli Ackermann (1867-1951), British engineer.</dc:description>
  <dc:date>1 June 1940</dc:date>
</rdf:Description>