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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/W2/12" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Letter, from John Wallis to Henry Oldenburg, dated at Oxford</dc:title>
  <dc:description>Concerning the centrobaric rule of Gulden and Wallis provides extracts from his  'Arithmetica infinitorum'  on the topic of rotating parallelogram; discussing his treatise on the cycloid
Figures in text</dc:description>
  <dc:date>20 September 1673</dc:date>
</rdf:Description>