Most Popular Books
- The Mutual Evolution of Earth and Humanity: Sketch of a Geology and Paleontology of the Living Earth
- Essays from Earth’s History: Additional Studies Concerning the Mutual Evolution of Earth and Humanity
- How Can Granite Arise from Basalt? (Earth’s History from a Spiritual Scientific Perspective)
- Das lebendige Wesen der Erde. Zum Geographieunterricht der Oberstufe.
