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Contains: among others: Report by Erich Schoenberg on the astronomical station at Windhoek (South Africa).

Contains: Scientific undertaking: Journey from A. Voeltzkow to East Africa and Madagascar.

Contains: Scientific undertaking: Journey from A. Voeltzkow to East Africa and Madagascar.

Contains: Scientific undertaking: Journey from A. Voeltzkow to East Africa and Madagascar.

Contains: among others: Memorandum about the construction of a German imperial observatory in Windhoek by Paul Guthnick.

Contains: among others: Memorandum about the foundation of a national observatory in Windhoek by Erich Schoenberg - Report by Erich Schoenberg about the expedition of employees of the observatory Breslau to South West Africa - Graphical representation of a round bearing on the radio tower area near Windhoek - Cost estimate by Paul Guthnick and Erich Schoenberg for the annual operating costs.

Contains: among others: Cuno Hoffmeister's research trip to Windhoek - quotation from Paul Guthnick and Erich Schoenberg for the annual operating costs - report on the American and English astronomical observation stations in South West and South Africa.

Contains: among others: essay by Erwin Finlay-Freundlich "Über die Notwendigkeit der Errichtung eines auswärtigen astronomischen Forschungsinstituts" - publication by Paul Range "Neue Temperaturbeobachtungen aus dem Süden Deutsch-Südwest-Afrikas" - memorandum about the erection of a German imperial observatory in Windhoek by Paul Guthnick - German astronomical journalist School reports of a German school in Swakopmund - "Points of view for the selection of a place for the German astronomical station" by Friedrich Becker - Map of Pretoria and surroundings (1908) - General plan of the city of Windhoek (1916).

Contains: J. Frenzel, Research on Histology and Physiology of the Decapods - R. Kossmann, Studies on Epicaridia in Minorca - Lehmann-Filhés, Publication of a work on the determination of meteor orbits - C. Denhardt, research on the Tanafluss in East Africa - Schmitz, studies on florids.

Contains: Herzog zu Mecklenburg, Adolf Friedrich, Berlin, research expedition to East Africa with the participation of botanist Mildbraed, Berlin - K. Bülow, Tübingen, studies on dihydrotetrazine - W. Filchner, Berlin, editing of a work on a journey through China and Tibet - A. Schrammen, Hildesheim, Monograph of the Siliceous Sponges of the Upper Cretaceous of Northern Germany - Committee of the 2nd German Potash Day, Investigation of the North German Potash Salt Deposits - J. Stark, Hannover, Investigation of the Light Emission of the Channel Rays - F. Tobler, Münster, studies on the vegetation communities in the sea - E. Wedekind, Tübingen, magnetochemical studies - L. Krehl, Heidelberg, studies on the change in water excretion by the skin and lungs (topic not researched), metabolism consumption in diabetes - E. Wedekind, Tübingen, Germany W. Zopf, Münster, publication of a work on lichen acids - A. Schmidt, Potsdam, magnetic measurements on the high seas - A. Johnsen, Königsberg, mineralogical and geological investigations on the islands of Pantelleria, S. Pietro, S. Antioco and publication of a work.