Georg Agricola, Zwölf Bücher vom Berg- und Hüttenwesen, übers. v. Carl Schiffner, Berlin 1928, S. 502 ff. Scanned by Bibliothek für Sozial- und Wirtschaftsgeschichte / Köln, http://www.digitalis.uni-koeln.de/ rights released to the public domain.
caption:"Die untere Kammer eines anderen zweiten Ofens A. Die mittlere Kammer B. Die oberste Kammer C; deren Fenster D. Die runde Öffnung E. Die viereckige Öffnung F."
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Georg Agricola, Zwölf Bücher vom Berg- und Hüttenwesen, übers. v. Carl Schiffner, Berlin 1928, S. 502 ff. Scanned by Bibliothek für Sozial- und Wirtschaftsgeschichte / Köln, http://www.digitalis.uni-koeln.de/ rights released to the public domain. c