Contains: Examination papers: Sinking and extension of the west shaft II of the Camphausen mine (1889); depiction of the storage conditions and operation of the Neustaßfurt rock salt and potash salt mine, Kalbe district (1893); The Fohnsdorf lignite mine in Styria (1892); study trip to Carinthia, Styria and the Salzkammergut (1893); the Blicksilberverarbeitung at the fiscal hut in Lautenthal, Bergamt Klausthal (1894), with sketches of the kilns; Calculation of the costs of the civil engineering works at the monastery gallery of the hard coal mines at Deister for 1893/94, Berginspektion Barsinghausen; file relation on the administrative conditions at the state salt works at Stetten, Hohenzollern (1895); file relation to the statute of the trade union Beisselsgrube (1896); file relation on the measures taken at the Saarbrücken Mining Authority against the weather (1896) Darin:Zeitschrift für praktische Geologie Issue 7/1897; Deutsches Kolonialblatt X. Volume No. 9/1899

N-R; Nestmann, Jürgen - Neumann, Hans - Neumann, Hans Peter - Niepoth, F. Jac. - Niksch, G. - Nolde, Hermann - Nowack, Hugo - Österle, W. - Ostermann, Gustav - Otten, Heinrich - Otterbach, Jürgen - Pawel, S. - Peitz, Gustavo Neto - Penkazki, Werner - Penner, Horst - Pfahl, Gustav - Piel, Wilhelm - Polster, Georg - Raffel, Heinz - Rasche, Wilfried - Raschke, Peter - Rauh, Gerhard - Reinfeldt, Heinrich - Rennstich, Karl - Riedsch, E. - Rohloff, Manfred - Roj, Günter - Rompf, Manfred - Rühle, A.