<bdi><a href="https://en.wikipedia.org/wiki/en:Balduin_M%C3%B6llhausen" class="extiw" title="w:en:Balduin Möllhausen"><span title="German traveler, writer and artist">Balduin Möllhausen</span></a>
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From volume 3, page opposite 30. "Reports of explorations and surveys to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean".