<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/EL/T/91" 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 Marten Triewald to John [Theophilus] Desaguliers</dc:title>
  <dc:description>Explanation of his improvement to the diving bell
Figure of diving bell with flap</dc:description>
  <dc:date>1 November 1732</dc:date>
</rdf:Description>