1911 Encyclopædia Britannica, Volume 17… (1911)
“ The chief towns of Upper Lusatia are Bautzen, Zittau, Löbau, Kamenz, Görlitz, Rothenburg, Hoyerswerda and Lauban; in Lower Lusatia they are Guben, Kottbus, Forst, Lubben and Spremberg. The principal rivers are the Spree with its tributaries, the Black Elster and the Neisse. Upper Lusatia is generally mountainous and picturesque, Lower Lusatia is flat and sandy. The chief industries are linen weaving, cloth making and coal mining. ”
