Engraving of <a href="//commons.wikimedia.org/wiki/Charles_Darwin" title="Charles Darwin">Charles Darwin</a>, done 1884 after a photograph from about 1854.
<ul><li>Published 1887 in  <i>The Life and Letters of Charles Darwin</i>.</li>
<li><a rel="nofollow" class="external text" href="http://darwin-online.org.uk/converted/scans/1887_Letters_F1452.1(online)/1887_Letters_F1452.1_008.jpg">Darwin online</a></li></ul>