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BUCH, CHRISTIAN LEOPOLD VON, BARON (1...

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Originally appearing in Volume V04, Page 714 of the 1911 Encyclopedia Britannica.
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BUCH, See also:CHRISTIAN See also:LEOPOLD VON, See also:BARON (1774-1853) , See also:German geologist and geographer, a member of an See also:ancient and See also:noble Prussian See also:family, was See also:born at Stolpe in See also:Pomerania on the 26th of See also:April 1774. In 1790-1793 he studied at the See also:mining school of See also:Freiberg under See also:Werner, one of his See also:fellow-students there being See also:Alexander von See also:Humboldt. He afterwards completed his See also:education at the See also:universities of See also:Halle and See also:Gottingen. His Versuch einer mineralogischen Beschreibung von See also:Landeck (See also:Breslau, 1797) was translated into See also:French (See also:Paris, 18o5), and into See also:English as See also:Attempt at a Mineralogical Description of Landeck (See also:Edinburgh, 181o); he also published in 1802 Entwurf einer geognostischen Beschreibung von Schlesien (Geognostische Beobachtungen auf Reisen durch Deutschland and Italien, See also:Band i.). He was at this See also:time a zealous upholder of the Neptunian theory of his illustrious See also:master. In 1747 he met Humboldt at See also:Salzburg, and with him explored the See also:geological formations of See also:Styria, and the adjoining See also:Alps. In the See also:spring of the following See also:year, von Buch extended his excursions into See also:Italy, where his faith in the Neptunian theory was shaken. In his previous See also:works he had advocated the aqueous origin of basaltic and other formations. In 1799 he paid his first visit to See also:Vesuvius, and again in 18o5 he returned to study the See also:volcano, accompanied by Humboldt and See also:Gay Lussac. They had the See also:good See also:fortune to See also:witness a remarkable eruption, which supplied von Buch with data for refuting many erroneous ideas then entertained regarding volcanoes. In 1802 he had explored the See also:extinct volcanoes of See also:Auvergne. The aspect of the See also:Puy de See also:Dome, with its See also:cone of See also:trachyte and its strata of basaltic See also:lava, induced him to abandon as untenable the doctrines of Werner on the formation of these rocks.

The scientific results of his investigations he embodied in his Geognostische Beobachtungen auf Reisen durch Deutschland and Italien (See also:

Berlin, 1802-1809). From the See also:south of See also:Europe von. Buch repaired to the See also:north, and spent two years among the Scandinavian islands, making many important observations on the See also:geography of See also:plants, on climatology and on See also:geology. He showed that many of the erratic blocks on the North German plains must have come from Scandinavia. He also established the fact that the whole of See also:Sweden is slowly but continuously rising above the level of the See also:sea from Frederikshald to See also:Abo. The details of these discoveries are given in his Reise durch Norwegen and Lappland (Berlin, 181o). In 1815 he visited the See also:Canary Islands in See also:company with Christian See also:Smith, the See also:Norwegian botanist. His observations here convinced him that these and other islands of the See also:Atlantic owed their existence to volcanic See also:action of the most intense See also:kind, and that the See also:groups of islands in the South Sea are the remains of a pre-existing See also:continent. The See also:physical description of the Canary Islands was published at Berlin in 1825, and this See also:work alone is regarded as an enduring See also:monument of his labours. After leaving the Canaries von Buch proceeded to the See also:Hebrides and the coasts of See also:Scotland and See also:Ireland. Palaeontology also claimed his See also:attention, and he described in 1831 and later years a number of Cephalopods, Brachiopods and Cystidea, and pointed out their stratigraphical importance. In addition to the works already mentioned von Buch published in 1832 the magnificent Geological See also:Map of See also:Germany (42 sheets, Berlin).

His geological excursions were continued without interruption till his 78th year. Eight months before his See also:

death he visited the mountains of Auvergne; and on returning See also:home he read a See also:paper on the See also:Jurassic formation before the See also:Academy of Berlin. He died at Berlin on the 4th of See also:March 1853. Von Buch had inherited from his See also:father a fortune more than sufficient for his wants. He was never married, and was unembarrassed by family ties. His excursions were always taken on See also:foot, with a See also:staff in his See also:hand, and the large pockets of his overcoat filled with papers and geological See also:instruments. Under this See also:guise, the passer-by would not easily have recognized the See also:man whom Humboldt pronounced the greatest geologist of his time. A See also:complete edition of his works was published at Berlin (1867-1885).

End of Article: BUCH, CHRISTIAN LEOPOLD VON, BARON (1774-1853)

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