Portrait of anthropologist Karl Hermann Berendt
Unknown author<span style="display: none;">Unknown author</span>
published 1900
John M. Weeks. <a rel="nofollow" class="external text" href="http://www.library.upenn.edu/exhibits/rbm/at250/anthropology/jw.pdf">The Penn Library Collections at 250:  Anthropology:  The Daniel Garrison Brinton Collection</a>. Retrieved on <span class="mw-formatted-date" title="2011-10-23">23 October 2011</span>.  This source obtained the portrait from <cite class="book" style="font-style:normal">Daniel G. Brinton (1900)      <i> Catalogue of the Berendt Linguistic Collection</i>, <a href="https://en.wikipedia.org/wiki/en:Philadelphia" class="extiw" title="w:en:Philadelphia"><span title="largest city in Pennsylvania, United States">Philadelphia</span></a>:  Dept. of Archaeology and Paleontology, University of Pennsylvania  <small></small></cite>