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Lübke, Wilhelm (1826-1893) Burckhardt, Jacob (1818-1897). Editor Haupt, Karl Albrecht (1852-1932). Editor
Eckardt, Anton Hefele, Fritz. Preface
Trommsdorff, Paul (1870-1940)
Domansky, Walther (1860-1936). Editor Hartwig, Richard. Editor
Karlinger, Hans (1882-1944) Hager, Georg (1863-1941). Editor Lill, Georg (1883-1951). Editor
Bormann, Walter (1888- )
Kalähne, Alfred (1874-1946)
Kalähne, Alfred (1874-1946)
Brooks, Alfred Hulse (1871-1924) United States of America. Geological Survey.
Licht, Hugo (1841-1923). Editor Rosenberg, Adolf (1850-1906). Editor
Deutsche Landwirtschafts-Gesellschaft
Deutsche Landwirtschafts-Gesellschaft
Spindler, Ernst (1854-1916). Editor Möhring, Bruno (1863-1929). Editor
Hoffmann, Ludwig (1852-1932) Stahl, Fritz (1864-1928). Editor
Schliepmann, Hans (1855-1929). Editor
Wegemann, Carroll Harvey (1879-?) United States of America. Geological Survey.
Smith, George Otis (1871-1944) United States of America. Geological Survey.
Anderson, Robert Pack, Robert W. (1885-?) United States of America. Geological Survey.