Zur ethnographie des abflusslosogebietes Deutsch - Ostafrikas, auf grund der sammlung der Ostafrika-expedition (Dr. E. Obst) der Geographischen gesellschaft in Hamburg

In the matter of the origin and the age of the kondoa erosion problems intersting data are available from the records of the German Georgrapher Dr.Erich Obst,who recored his observation concerning the condition of the country as he saw it in 1911/12 on the map which accompanied his articles.