Arnold Escher von der Linth (8 June 1807 in Zürich – 12 July 1872) was a Swiss geologist, the son of Hans Conrad Escher von der Linth (1767–1823).
.jpg)
He made the first ascent of the Lauteraarhorn on 8 August 1842 together with Pierre Jean Édouard Desor and Christian Girard, and guides Melchior Bannholzer and Jakob Leuthold.[1]
He studied geology and other sciences in Geneva, where one of his teachers was Nicolas Theodore de Saussure, and in Berlin as a student of Leopold von Buch and Alexander von Humboldt. In 1856 he became professor of geology at the École Polytechnique in Zürich and established the Geological Institute there.[2] His researches led him to be regarded as one of the founders of Swiss geology.[3]
With Bernhard Studer, he was the first to systematically explore the geology of the Swiss Alps and its neighboring regions (eastern Switzerland, Vorarlberg, Tyrol, Piedmont and Lombardy).[2] Also with Studer, he produced a highly acclaimed geological map of Switzerland (1853).[4]
In particular, his scientific liaison with the Scottish geologist Roderick Murchison (1792–1871) made him a contributor to the discovery of the Silurian system, and the first systematic description of sedimentary rocks and their index fossils.[5]
He was the author of Geologische Bemerkungen über das nordliche Vorarlberg und einige angrenzenden Gegenden (Geological observations on the northern Vorarlberg and some adjacent areas), published at Zürich in 1853.[3][4]