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

Preface: Stephan Fölske

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).