Maupassant, Guy de (1850-1893)

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Lübke, Wilhelm (1826-1893)

Lübke, Wilhelm (1826-1893) Burckhardt, Jacob (1818-1897). Editor Haupt, Karl Albrecht (1852-1932). Editor

Kegel, Wilhelm (1890-1971) Königlich Preussische Geologische Landesanstalt

Wedekind, Rudolf (1883-1961) Königlich Preussische Geologische Landesanstalt

Wegemann, Carroll Harvey (1879-?) United States of America. Geological Survey.

Keilig, Fritz (1889- )

Eckardt, Anton Hefele, Fritz. Preface

Schliepmann, Hans (1855-1929). Editor

Schliepmann, Hans (1855-1929). Editor Schmitz, Bruno (1858-1916)

Zimmermann, Max Georg (1861-1919). Editor

Zimmermann, Max Georg (1861-1919). Editor

Smith, George Otis (1871-1944) United States of America. Geological Survey.

Capps, Stephen Reid (1881-1949) Johnson, Bertrand Leroy (1882-?) United States of America. Geological Survey.

Capps, Stephen Reid (1881-1949) United States of America. Geological Survey.

Siebenthal, Claude Ellsworth (1869-1930) United States of America. Geological Survey.

Munn, Malcolm John (1874-1949) United States of America. Geological Survey.

Nickles, John Milton (1859-1945) United States of America. Geological Survey.

Munn, Malcolm John (1874-1949) United States of America. Geological Survey.

Lupton, Charles Thomas (1878-1935) United States of America. Geological Survey.

Day, David Talbot (1859-1925) United States of America. Geological Survey.