This report turns briefly to the genealogy of geography after Ritter in Germany.
In 1870 geography in Germany was represented at only three Prussian Universities-at Berlin by H. Kiepert; at Gottingen by J. E. Wappaeus; and at Breslau by K. J. H. Neumann. The development of geography in the Universities in the 1870`s witnessed the emergence of the first generation of modern geographers. The tradition of Ritter was continued by the three scholars just noted, but their roots lay in classical history and had little to do with the new trends. The situation rapidly improved with the appointment of O. Peschel to Leipzig(1871), A. Kirchhoff to Halle(1873), H. Wagner to Konigsberg(1875, Gottingen (1880), F. von Richthofen to Bonn(1877) and G. Gerland to Strasbourg(1875). Wagner and Kirchhoff agitated for the inclusion of geography in the Universities and it was largely due to their efforts that the Prussian government decided in 1874 to establish chairs of geography in all the State Universities. It was at this stage that the two leaders entered the academic arena, Richthofen in 1877 at Bonn and Ratzel at Munich in 1875. O. Peschel, who died in 1875 was a third founder of the modern discipline. Other scholars in the last decades of the century were Th. Fischer, J. Partsch, G. Gerland and A. Supan.
In the first quarter of the twentieth century there emerged a considerable number of younger men, all of whom carried out prolonged work in the field and this is the period which Van Valkenburg is inclined to describe as `golden age of German geography. It is invidious to select from all the geographers of this second generation those who were the leaders. Outstanding, however, were Albrecht Penck and Alfred Hettner, Otto Schluter and Alfred Philippson. Among these also were Fritz Machachek (1876^1957), who retired from Munich in 1946, and Otto Maull (1887^1957), who retired from Graz in 1945, both of whom were students of Albrecht Penck and were primarily geomorphologists ; S. Passarge (1867~1958), a student of Richthofen, who retired in 1935 ; and W. Volz (1870 1958), a student of Ratzel, Partsch and Richthofen, who retired in 1935. There were two other important contemporaries, both pupils of Richthofen, and both primarily natural scientists. W. Meinardus (1867~1952, a meteorologist), was professor at Muter from 1906 to 1920, and at Gottingen from 1920 (as the successor of Herman Wagner) until his retirement in 1935. Erich von Drygalski (1865~1949), the antarctic explorer, was prefessor of geography at the University of Munich from 1906 to 1934.
A third generation grew to stature in the thirties and lived their most active years through the Nazi period. Among the most distinguished of the younger men in this interwar period were Leo Waibel, Robert Gradmann, H. Schmitthenner, N. Krebs, E. Obst, and H. Mortensen. H. Schrepfer and H. Dorries, both of great promise, were killed during World War 11.
A fourth generation has grown in the post-war years. Among these outstanding is Carl Troll, but a half dozen other scholars are preeminent-G. Pfeifer, W. Hartke, H. Bobek, J. Budel, H. Lehmann, C. Schott, E. Meynen and H. Schlenger. Both Troll and Meynen state their indebtedness to the leadership and ideas of Albrecht Penck. Hartke stresses his relation to A. Ruhl in Berlin. The fifth generation embraces the large number of younger men in their late thirties or forties on whom will depend the advancement of geographical research over the next thirty years or so-until 2,000 .A. D.
Germany has not had a single school of thought and training, but several. The most influential in the second generation, to judge from the numbers of their trainees, were Penck in Berlin and Hettner in Heidelberg. Richthofen and Ratzel, leaders of the first generation, were contemporaries with an almost identical life span. Albrecht Penck (1858 -1945, retired 1926) and Alfred Hettner (1859-1941, retired 1928) dominated the professional scene in the first quarter of this century.