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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/P1/14" 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 William Petty to William Brouncker</dc:title>
  <dc:description>Account of Petty's double-bottomed ship (catamaran) called 'Simon and Jude' because it was launched on the feast day of Simon and Jude (28 October) - later called 'Invention' -had two 'cylinders' each two foot in diameter with a mast 20 feet long - sailed with a single 'smack-sayle' from Dublin to Lacy Hill - details about how she sailed - carry 40 men - that several models had been made - one to carry three men was constructed before this version 
Figures in text</dc:description>
  <dc:date>29 October 1662</dc:date>
</rdf:Description>