<i>Title:</i> Pearl, Raymond, Ph,D., Biologist 
<i>Abstract/medium:</i> 1 negative : glass ; 5 x 7 in. or smaller
Harris &amp; Ewing, photographer
1918
<p>Library of Congress
</p>
<ul><li><i>Catalog:</i> <a rel="nofollow" class="external free" href="http://lccn.loc.gov/2016869082">http://lccn.loc.gov/2016869082</a></li></ul><ul><li><i>Original url:</i> <a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/2016869082/">https://www.loc.gov/pictures/item/2016869082/</a></li></ul>