Signature of naturalist Louis Agassiz
<bdi><a href="https://en.wikipedia.org/wiki/en:Louis_Agassiz" class="extiw" title="w:en:Louis Agassiz"><span title="Swiss-born American naturalist (1807-1873)">Louis Agassiz</span></a>
</bdi>
published 1900
<i>Appletons' Cyclopædia of American Biography</i>, 1900, v. 1, p. 34