Reports
The Matumbi Caves in German East Africa. After diary pages of Reg.-Rat Prof. Dr. K. Braun - Stade [published in "Der Sammler" on 16.06.1926, entertainment and literature supplement of the Munich-Augsburger Abendzeitung; on 30.06. and 07.07.1926 in special print from the "Unterhaltungsblatt", weekly supplement to the "Stader Tagesblatt"]. (print title)