Johannes Walther

Johannes Walther (July 20, 1860 – May 4, 1937) was a German geologist who discovered important principles of stratigraphy, including Walther's Law.

Early life and work Walther came from a religious home and studied botany, zoology, and philosophy at the University of Jena. In 1882 he successfully completed this course with a doctorate. Then he studied geology and palaeontology in Leipzig and later Munich. Modern Lithogenesis, 1883–84 Introduction to geology as a historical science (Einleitung in die Geologie als historische Wissenschaft), 1893–94 History of the Earth and Life, (Geschichte der Erde und des Lebens), 1908 General Palaeontology (Allgemeine Paläontologie), 1919–1927