* Relief shown by hachures.
<ul><li>Inset: Northern &amp; eastern part of Maine and part of lower Canada and New Brunswick. Scale approximately 1:1,267,200.</li>
<li>Mapping the Nation (NEH grant, 2015-2018)</li></ul>
Scan by NYPL
<a rel="nofollow" class="external free" href="https://digitalcollections.nypl.org/items/055e0330-0bc7-0134-627e-00505686a51c">https://digitalcollections.nypl.org/items/055e0330-0bc7-0134-627e-00505686a51c</a>