Petermann, August Heinrich (ouˈgŏst hĪnˈrĭkh pāˈtərmän) [key], 1822–78, German geographer, an authority on the geography of Africa and the Arctic. He had (1847–54) a cartographical establishment in London and in 1854 became director of the Perthes Geographical Institution, Gotha. In 1855 he founded Petermanns Geographische Mitteilungen, a geographical journal.
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