<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/CLP/6/8/4" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Diagram, explanation of the torricellian experiment by Dr Wallis</dc:title>
  <dc:description>Figure 5. from John Wallis's explanation of the Torricellian experiment tried by Jonathan Goddard.

Consists of a cylinder sitting in a pool of mercury. A counterweight seems to be attached to the top of the cylinder.

Diagram found in the margin of the third page of the paper.

Subject: Pneumatics / Scientific apparatus and equipment</dc:description>
  <dc:date>1662</dc:date>
</rdf:Description>