Hoffman, Ernest Karlovich

(1801 - 1871). Initial education in Dorpat school, higher education - in Dorpat (now University Yuryev). In 1823, Mr.. took part, as a geologist, a voyage around the world on the sloop "Enterprise" under the command of Captain Kotzebue, which lasted 3 years. The most important scientific results of this trip were published by Hoffmann in 1829. in Berlin, in the article "Geognostische Beobachtungen auf einer Reise um die Welt in den Jabren 1823 - 26". In 1828, Mr.. been engaged in research of the Southern Urals and along with Gelmersenom published in Berlin "Geognostische Untersuchung der Sud-Uralgebirges" (1831). In 1833 - 36 years Hoffman read in Tartu University lectures on geology and mineralogy, and where he also received a master's degree for "Geognosticheskoe description of a trip to Abo" (Dorpat, 1837). In 1837, Mr.. passed a professor at the University of St. Vladimir in Kiev, . where he remained for five years, . making during that time several research trips to Kiev, . Podolsk, . Hit and Tauride province and printed manual oriktognozii, . "Overall oriktognoziya, . or teaching about the signs of minerals "(Kiev, . 1840); "Anakys der Sodalit aus dem Ilmengebirge" ( "Pogg,
. Ann. ", 1839) and" Geognostische Beschreibung der sudlichen Krimm "(" Bull. de l'Acad "., 1840). In 1843, Mr.. went to Eastern Siberia to investigate the gold placers; report about this trip ( "Reise nach dem Goldwachen Ostsibiriens") was published them in 1847, Mr.. In 1844, Mr.. Hoffman produced a study on the River Kemi in Finland, the results of which are: "Geognostische Beschreibung der Umgegend von Kemi und Torneo" published in "Leonards Jahrb. fur Miner. "In 1845, Mr.. Hoffman was appointed Professor of Mineralogy, St. Petersburg University and held this position until 1863. In 1847, 1848 and 1850 he led an expedition, sent Geographic Society to study the Northern Urals. The results of this expedition, described in the book "Pai-Khoi, or the Northern Urals, brought Hoffmann great Konstantinovo medal from the Geographical Society. Then, in the course of 7 years from 1853 - 1859, he visited every summer, the average Urals, these studies served as the material for the major work of Hoffmann - geological maps of state-owned villas of the Ural mountain districts. Maps accompanied by a detailed geological description of the investigated localities, typed in "Mining Journal (1865 - 1868), and then in 1870. released a book entitled, "Materialien zur Anfertigung geologischer Karten der Kaiserlichen Bergwerks Distrikte des Ural-Gebirges". In addition to these works, Hoffman is printed: "Ueber die Entdeckung edler Metalle in Russland und deren Ausbeute" (St. Petersburg, 1846), "A Guide to mineralogy for high schools (St. Petersburg, 1853) and" On the hypsometric relations Ural Mountains "(St. Petersburg ., 1860). Leaving, the deranged health, university, Hoffman remained before 1865. Director of the Imperial Mineralogical Society, but then moved to Dorpat, where he died.