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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/M1/98" 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 Molyneux to Edmond Halley, dated at Dublin</dc:title>
  <dc:description>Thanks for sending a paper on the foci for spherical lenses; observations of an earthquake in Chester; wishes for Halley's last thoughts on shooting
On the reverse Molyneux discusses Halley's double convex and double concave lenses 
Read to the Royal Society on 15 October 1690</dc:description>
  <dc:date>8 October 1690</dc:date>
</rdf:Description>