also produced a third generation. A member of the fourth generation, William E. Doolittle studied with Turner, earned the PhD in 1979, became a professor in the Department of Geography and the Environment at University of Texas at Austin, and has extended the school into the fifth generation: Dean P. Lambert (1992), Andrew Sluyter (1995), Emily H. Young (1995), Eric P. Perramond (1999), Phil L. Crossley (1999), Jerry O. (Joby) Bass (2003), Maria G. Fadiman (2003), and Matthew Fry (2008). Works Sauer published twenty-one books and more than ninety papers and articles. His works include: Geography of the Upper Illinois Valley and History of Development, 1916 The Geography of the Ozark Highland of Missouri, 1920 The Morphology of Landscape, 1925 Basin and Range Forms in the Chiricahua Area, 1930 The Road to Cibola, 1934 Themes of plant and animal destruction in economic history, 1938 Environment and culture during the last deglaciation, 1948 Agricultural Origins and Dispersals, 1952 The Early Spanish Main, 1966 Sixteenth Century North America: The Land and People as Seen by Europeans, 1971 See also Berkeley School of Latin Americanist Geography Geographers on Film List of geographers References Further reading Carl Sauer on Culture and Landscape:Readings and Commentaries, edited by William M. Denevan and Kent Mathewson. Baton Rouge, LA:Louisiana State University Press, 2009 . Culture, Land, and Legacy: Perspectives on Carl Sauer and Berkeley School Geography, edited by Kent Mathewson and Martin S. Kenzer. Baton Rouge, LA: Geoscience Publications, 2003. Carl O. Sauer: The Road to Cíbola. Berkeley and Los Angeles: University of California Press 1932. Carl O. Sauer: Agricultural Origins and Dispersals, American Geographical Society, 1952. Carl O. Sauer: The Early Spanish Main, University of California Press, Berkeley, 1966. Carl O. Sauer: Northern Mists, University of California Press, Berkeley, 1968. Mercatanti L.: Carl Sauer e gli ultimi lavori sul continente americano. The Early Spanish Main, in Rivista Geografica Italiana, 121, 2014, pp. 275–288 . External links Collection Guide to the Carl Ortwin Sauer papers, 1909-1975 at The Bancroft Library UC, Berkeley Biography List of accomplishments on the Berkeley geography website List of Sauer articles on the web 1889 births 1975 deaths American geographers American people of German descent Cultural geographers Historical geographers People from Warrenton, Missouri Presidents of the American Association of Geographers University of California, Berkeley faculty University of Chicago alumni Human geographers Victoria Medal recipients 20th-century geographers