A class in mathematical geography studying earth's rotation around the sun, <a href="https://en.wikipedia.org/wiki/Hampton_Institute" class="extiw" title="w:Hampton Institute">Hampton Institute</a>, Hampton, Virginia
<bdi><a href="https://en.wikipedia.org/wiki/en:Frances_Benjamin_Johnston" class="extiw" title="w:en:Frances Benjamin Johnston"><span title="American photographer, photojournalist (1864-1952)">Frances Benjamin Johnston</span></a>
</bdi>
1899
Frances Benjamin Johnston Collection (Library of Congress) - <a rel="nofollow" class="external free" href="http://hdl.loc.gov/loc.pnp/cph.3b10023">http://hdl.loc.gov/loc.pnp/cph.3b10023</a>