1. Map of the rivers Huallaga, Ucayali, & Amazon : from the observations of Lieut. Wm. L. Herndon U.S.N. Maps University Of Minnesota Public content 1853. Tyssowski, Jan, 1811-1856. Detached from: Senate, Ex. Doc. No. 36, 2d Sess. 32d Congress.; Verified in: Catalogue of Maps of Hispanic America, American Geographical Society, ... A. Hoen (Baltimore, MD).