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Meyers b. de Die hauptschlichsten frhern hellere Schraffur und heutigen dunklere Schr Gletschergebiete der Erde nach Penck Meyers ca author PDMeyers Images from Meyers Konversationslexikon th edition text figures Maps from Meyers Konversationslexikon th edition maps of the world Glaciological maps Old maps of the Arctic Old maps