Keywords: United States Exploring Expedition BHL32614256.jpg United States Exploring Expedition During the year 1838 1839 1840 1841 1842 32614256 101477 69333 Text Map 5 http //www biodiversitylibrary org/page/32614256 1849 10 5962/bhl title 69333 Dougal William H ; Library of Congress ; Stuart Fred D ; U S Congress ; United States Exploring Expedition; United States ; United States ; Wilkes Charles Biodiversity Heritage Library Check categories 2015 October 28 PD-old-70-1923 United States Exploring Expedition 1849 United States Exploring Expedition Images uploaded by Fæ Files from the Biodiversity Heritage Library Biodiversity Heritage Library Engelmann Herbarium collection |