Blue plaque erected on 3rd February 2009 by The Royal Society of Chemistry at the Literary and Philosophical Society of Newcastle, 23 Westgate Road, Newcastle upon Tyne NE1 1SE
<a href="//commons.wikimedia.org/wiki/User:Spudgun67" title="User:Spudgun67">Spudgun67</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>