ABSTRACT
This chapter focuses on three scholars who exercised a powerful influence in the third generation namely Oskar Schmieder, Leo Waibel, and Wilhelm Credner. Waibel was greatly influenced not only by Hettner in his formative years but also by Albrecht Penck and Otto Schluter. Wilhelmy, now at Stuttgart, is now mainly concerned with geomorphology, but his interest in the geography of urbanism is evident in a book on the cities of Latin America, the major area of his travel and research. After World War I, Wilhelm Credner studied geography under Hettner, following short spells at Greifswald and Upsala in Sweden. His interest in economic geography was undoubtedly due to the influence of the thinking of Leo Waibel, another of Hettner's students. Schmieder began his studies, like most of his contemporaries, with geomorphology and the other natural sciences.
