Karl Ludwig Deffner (8 February 1817 in Esslingen am Neckar – 11 June 1877 in Esslingen am Neckar) was a German

manufacturer Manufacturing is the creation or production of goods with the help of equipment, labor, machines, tools, and chemical or biological processing or formulation. It is the essence of secondary sector of the economy. The term may refer to ...

politician A politician is a person active in party politics, or a person holding or seeking an elected office in government. Politicians propose, support, reject and create laws that govern the land and by an extension of its people. Broadly speaking, ...

and

geologist A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...

. He was the son of manufacturer and politician, Carl Christian Ulrich Deffner (1789–1846).

Biography

He received his education at polytechnic schools in

Stuttgart Stuttgart (; Swabian: ; ) is the capital and largest city of the German state of Baden-Württemberg. It is located on the Neckar river in a fertile valley known as the ''Stuttgarter Kessel'' (Stuttgart Cauldron) and lies an hour from the Sw ...

and

Berlin Berlin ( , ) is the capital and largest city of Germany by both area and population. Its 3.7 million inhabitants make it the European Union's most populous city, according to population within city limits. One of Germany's sixteen constitu ...

. In 1846, following the death of his father, he took over management of a metal goods factory. In the 1850s he gradually handed over the company's business to his younger brother, Wilhelm Deffner (1829–1897). He is known for his geological investigations of

Württemberg Württemberg ( ; ) is a historical German territory roughly corresponding to the cultural and linguistic region of Swabia. The main town of the region is Stuttgart. Together with Baden and Hohenzollern, two other historical territories, Württ ...

, in particular, exploratory studies of the Nördlinger Ries crater and the Filder Graben (located near Filderstadt). He also made significant contributions towards publication of the geological map of Württemberg. Shortly before his death, he donated his paleontological, mineralogical and geological collections to the ''Oberrealschule'' in Esslingen. Between 1855 & 1870 he was a member of the ''Württemberg Landtag'' (Liberal Party), and between 1868 & 1870 was part of the ''Zollparlament''.

Selected published works

* ''Die Jura-Versenkung bei Langenbrücken : geognostische Monographie'', (with

Oscar Fraas Oscar Friedrich von Fraas (17 January 1824, in Lorch (Württemberg) – 22 November 1897, in Stuttgart) was a German clergyman, paleontologist and geologist. He was the father of geologist Eberhard Fraas (1862–1915). Biography He studied ...

) 1859. * ''Der Buchberg bei Bopfingen'', 1870. * ''Begleitworte zur geognostischen Specialkarte von Württemberg : Atlasblätter Bopfingen und Ellenberg'', (with Oscar Fraas) 1877. * ''Geognostische Karte von Württemberg'', (with Oscar Fraas and Jakob Hildenbrand).Most widely held works by Carl Deffner
at WorldCat Identities

References

{{DEFAULTSORT:Deffner, Karl 1817 births 1877 deaths 19th-century German geologists People from Esslingen am Neckar