<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/CLP/12i/17/2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Plate, aero-clepsydra by [John Aubrey]</dc:title>
  <dc:description>Ink drawing showing the design of an aero-clepsydra with bellows, a time measuring device that works on the basis of air instead of water, as was more commonly used. Likely drawn by Aubrey.

Subject: Medicine / Scientific Instruments

Read to the Royal Society on 12 December 1667.</dc:description>
  <dc:date>[1667]</dc:date>
</rdf:Description>