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Johannes Walther : ウィキペディア英語版 | Johannes Walther
Johannes Walther (July 20, 1860 in Neustadt an der Orla, Germany – May 4, 1937 in Bad Hofgastein, Germany) was a German geologist who discovered important principles of stratigraphy, including Walther's Law.〔Norbert Hauschke, Silvia Isaac, Lars Schimpf, Martin Seiffert, Wolfgang Gossel (2010). ''Johannes Walther (1860 - 1937) zwischen Riff und Wüste - Spurensicherung in 3 D anlässlich seines 150.'' (''John Walther (1860 - 1937) between the reef and the desert - in 3D crime scene on the occasion of his 150th Birthday''). Halle (Saale). October 2010. ISBN 978-3-00-032815-2〕 ==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.〔 The following year he worked at the Stazione Zoologica in Naples as a lecturer, staying for two years. Among other things, he ran extensive sedimentological and biological studies. In 1885 he returned to Jena and habilitated there in 1886 with a thesis on crinoids. After travelling, he was appointed as a professor at Jena in 1890.
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