Online Encyclopedia


Online Encyclopedia
Originally appearing in Volume V12, Page 820 of the 1911 Encyclopedia Britannica.
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RITTER VON WILHELM KARL HAIDINGER (1795-1871), Austrian mineralogist, geologist and physicist, was born at Vienna on the 5th of February 1795. His father, Karl Haidinger, contributed largely to the development of mineralogical science in the latter half of the 18th century. Having studied at the normal school of St Anne, and attended classes at the university, Wilhelm, at the age of seventeen, joined Professor F. Mohs at Gratz, and five years later accompanied the professor to Freiberg on the transfer of his labours to the mining academy of that town. In 1822 Haidinger visited France and England with Count Breunner, and, journeying northward, took up his abode in Edinburgh. He translated into English, with additions of his own, Mohs's Grundriss der Mineralogie, published at Edinburgh in three volumes under the title Treatise on Mineralogy (1825). After a tour in northern Europe, including the Scandinavian mining districts, he undertook the scientific direction of the porcelain works at Elbogen, belonging to his brothers. In 1840 he was appointed counsellor of mines (Bergrat) at Vienna in the place of Professor Mohs, a post which included the charge of the imperial cabinet of minerals. He devoted himself to the re-arrangement and enrichment of the collections, and the museum became the first in Europe. Shortly after (1843) Haidinger commenced a series of lectures on mineralogy, which was given to the world under the title Handbuch der bestimmenden Mineralogic (Vienna, 1845; tables, 1846). On the establishment of the imperial geological institute, he was chosen director (1849); and this important position he occupied for seventeen years. He was elected a member of the imperial board of agriculture and mines, and a member of the imperial academy of sciences of Vienna. He organized the society of the Freunde der Naturwissenschaften. As a physicist Haidinger ranked high, and he was one of the most active promoters of scientific progress in Austria. He was the discoverer of the interesting optical appearances which have been called after him " Haidinger's brushes." Knighted in 1865, the following year he retired to his estate at Dornbach near Vienna, where he died on the 19th of March 1871. In addition to the works already named, Haidinger published Anfangsgriinde der Mineralogie (Leipzig, 1829); Geognostische Ubersichtskarte der osterreich. Monarchic (Vienna, 1847) ; Bemerkungen fiber die Anordnung der kleinsten Theilchen in Christallen (Vienna, 1853); Interferenzlinien am Glimmer (Vienna, 1855) ; Vergleichungen von Augil and Amphibol (Vienna, 1855). He also edited the Naturwissenschaftliche Abhandlungen (Vienna, 1847) ; the Berichte fiber die Mittheilungen von Freunden der Nalurwissenschaften in Wien (Vienna, 1847—1851); and the Jahrbuch of the Vienna K. K. Geologische Reichsanstalt (185o), &c. Some of his papers will be found in the Transactions of the Royal Society of Edinburgh (vol. x.) and of the Wernerian Society (1822—1823), Edinburgh Phil. Journal, Brewster's Journal of Science, and Poggendorff's Annalen. (H. B. Wo.)
HAIDUK (also written Hayduk, Heiduc, Heyduke and He...

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