Boulton, William Henry (1869- ) Michałowski, Kazimierz (1901-1981). Translator Michałowski, Kazimierz (1901-1981). Preface
Silber, Anatol (1904- )
Arndt, Ernst (1904- )
Technische Hochschule (Danzig). Architekturabteilung
Altmann, Bernhard (1907- )
Vibraye, Henri de (1874-1971) Dąbrowski, Karol (1883-1940). Translator Sinko, Tadeusz (1877-1966). Preface
Siewers, Hermann (1908- )
Deutsche Landwirtschafts-Gesellschaft
Normenausschuß der deutschen Industrie Normenausschuss der Deutschen Industrie Gesellschaft der Freunde und Förderer der Hamburgischen Schiffbau-Versuchsanstalt Hafenbautechnische Gesellschaft
Wells, Francis Gerritt (1898-1969) Waters, Aaron Clement (1905-1991) United States of America. Geological Survey.
Tuck, Ralph (1904-?) United States of America. Geological Survey.
Capps, Stephen Reid (1881-1949) United States of America. Geological Survey.
Smith, Philip Sidney (1877-1949) United States of America. Geological Survey.
Ross, Clyde Polhemus (1891-1965) United States of America. Geological Survey.
Sears, Julian Ducker (1891-1970) United States of America. Geological Survey.
Waring, Gerald Ashley (1883-?) United States of America. Geological Survey.