<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/66/9/2" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished diagram, drainpipe cross-section by Henry Hennessy</dc:title>
  <dc:description>A cross-section of a circular drainpipe with horizontal lines representing the water surface when the velocity is greatest and when its scouring action is most effective as it flows through the pipe.

Subject: Hydraulics</dc:description>
  <dc:date>1889</dc:date>
</rdf:Description>