23.9.1880 Fiez/CH - 13.10.1957 Genève/CH
Léon Collet concluded his education in 1904 at Geneva University by the submission of a PhD thesis. He then moved to Scotland to collaborate with Sir John Murray at Edinburgh University. Upon returning to Geneva two years later, he was appointed Private Lecturer. He was appointed in 1911 professor of geology at La Plata University in Argentine but returned already after five years to direct the Swiss Federal Hydrographic Service in Berne until 1918. He then was appointed professor of geology and paleontology at Geneva University and was on leave at Harvard University from 1927 to 1929 during the winter semesters. In 1929, his and the chair of geographical physics were combined, with Collet from then as director of the Institute of geographical physics. He retired from Geneva University in 1944 after having been awarded Honorary Doctor from Glasgow University in 1933.
Collet contributed particularly to topics of geology, paleontology, physical geography and to limnology. His first main work treated marine depositions in lakes, published in 1908, for which he was awarded Prix Jules Girard from the Geographical Society of Paris. A second main work followed in 1911 on the description of the High-Alps between the Arve and the Rhone Rivers, for which he was decorated with Prix Plantamour-Prévost from the Faculty of Sciences, University of Geneva. The 1925 book on Lakes compares those of Scotland with certain Swiss lakes. Collet was a Member of the Swiss Society of Natural Sciences from 1912 and there particularly contributed to its Geological Commission. He also presided over the Swiss Geological Society from 1945 to 1948.
Collet, L.W. (1908). Les dépôts marins. Doin: Paris.
Collet, L.W. (1914). Charriage des alluvions dans certains cours d'eau de la Suisse. Archives des Sciences Physiques et Naturelles Genève, Série 4 37: 529-533.
Collet, L.W., Mellet, R. (1917). Méthodes de jaugeage. Communication 10. Service des Eaux: Berne.
Collet, L.W. (1925). Les lacs. Doin: Paris.
Collet, L.W. (1926). The lakes of Scotland and of Switzerland. Geographical Journal 67(3): 193-213.
Paréjas, E. (1957). Léon-William Collet. Verhandlungen der Schweizerischen Naturforschenden Gesellschaft 137: 305-315, with bibliography. P

Hydraulicians in Europe 1800-2000 . 2013.

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  • collet — [ kɔlɛ ] n. m. • fin XIe « cou »; dimin. de col 1 ♦ (XIIIe) Vx ou loc. Partie du vêtement qui entoure le cou. ⇒ col, collerette. Un collet de dentelle. ♢ Loc. adj. COLLET MONTÉ : qui affecte l austérité, la …   Encyclopédie Universelle

  • collet — COLLET. substant. maseul. Cette partie de l habillement qui est autour du cou. Collet de pourpoint. Collet de manteau.Collet, étant mis absolument, se prend pour Cette pièce de toile qu on met autour du cou par ornement, et qui s appelle… …   Dictionnaire de l'Académie Française 1798

  • collet — Collet. s. m. Cette partie de l habit, qui est alentour du cou. Collet de pourpoint. collet de manteau. collet de robe. collet de chemise &c. Collet, estant mis absolument, Se prend pour cette piece de toile que l on met autour du cou par… …   Dictionnaire de l'Académie française

  • Collet — ist der Familienname folgender Personen: André Collet (* 1971), deutscher Ausdauerläufer Cédric Collet (* 1984), französischer Fußballspieler Clara Elizabeth Collet (1860–1948), britische Soziologin Giancarlo Collet (* 1945), katholischer… …   Deutsch Wikipedia

  • Collet — Col let, n. [F. collet, dim. fr. L. collum neck. See {Collar}.] 1. A small collar or neckband. Foxe. [1913 Webster] 2. (Mech.) A small metal ring; a small collar fastened on an arbor; as, the collet on the balance arbor of a watch; a small socket …   The Collaborative International Dictionary of English

  • collet — Collet, la partie pres du col. Prens le par le collet, et le meine en justice, Collum abstringe. Un collet, ou gorgias dequoy les femmes couvrent leurs poitrines, Strophium, Focale, Fascia, vel quid simile, quo collum obuoluitur. B. ex… …   Thresor de la langue françoyse

  • collet — 1520s, from Fr. collet little collar, dim. of col neck, from L. collum (see COLLAR (Cf. collar)) …   Etymology dictionary

  • collet — [käl′it] n. [Fr, dim. of col, the neck < L collum: see COLLAR] 1. a metal band or ring, such as is used in a watch to hold the end of a balance spring 2. a small metal band used in ring settings 3. a chuck with a conical or tapered end, for… …   English World dictionary

  • Collet — Collet. См. Цанговый патрон. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • Collet — (fr.), 1) Kragen, Krägelchen, Halskragen; 2) Reitjacke, Weste mit Ärmeln u. ohne Schößen, welche genau an den Körper anschließt u. von Kindern, Reitern u. solchen. Personen getragen wird, welchen bei ihrer Arbeit ein langer Rock hinderlich sein… …   Pierer's Universal-Lexikon

  • Collet — (franz., spr. lä), s. Kollett …   Meyers Großes Konversations-Lexikon

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