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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/C1/90" 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 de Cocherel to Henry Oldenburg, dated at Rouen</dc:title>
  <dc:description>Autograph letter
De Cocherel provides information about a person who has increased the firing range of a cannon and about a person's theory for determining longitude by astronomical observations. De Cocherel asks if the Royal Society is willing to purchase either of these ideas. He also asks for a map of Jamaica
Oldenburg has written a note on the back of the letter about sea-thrushes and sea-larks found between Ireland and Scotland</dc:description>
  <dc:date>22 April 1669</dc:date>
</rdf:Description>