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<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/CLP/21/51" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Paper, 'An instrument to observe the motions of the heaven through a telescope by reflection and concerning a lad who swallowed a knife' by Edmond Halley</dc:title>
  <dc:description>Paper on the telescope was read to the Royal Society on 23 March 1691. Subject: Astronomy, Scientific instruments.

Concerning the lad who swallowed a knife - it was drawn out of the stomach on a silk thread on 2 August 1692 after being there for seven months. Subject: Medicine</dc:description>
  <dc:date>[1691]</dc:date>
</rdf:Description>