documents from scientists from early stages of German polar research, i. e. the papers from Alfred Wegener (NL 2), from Johannes Georgi (NL 3) from Fritz Loewe (NL 4), from Hermann Junghenn (NL 7), from Bernhard [...] polar and maritime research, e. g. to the first and second German expedition to Greenland or to Wegener's expedition to this island (S 4), and a collection of 80 documentaries in different formats and