Vocation : Science : Biology

Heinrich Birk (1898 – 1973) was a German viticulturist. He was head of the Geisenheim Grape Breeding Institute. Heinrich Birk studied philosophy at the University of Giessen after his initial graduation 1920–1923 in agronomy at the university of Bonn and after 1924 in addition to an initial position on the domain Steinberg, Kloster Eberbach. He received his doctorate in this subject in 1929. At this time he was already two years as clerk at the Geisenheim Research Center at the Institute of vines finishing as an assistant to Professor F. Muth. 1939 he became head of the Reichs-Rebenzuchtstation (Reichs-vine breeding station). He had to quit a year later because of his compulsory military service. 1945 Birk returned and devoted himself in postwar reconstruction.
Heinrich Birk gained reputation for the cultivation of some new grape varieties by cloning Riesling and crossing with other varieties. Birks idea was to create an early ripening wine compared to the traditional Riesling. So he directed experimental plots emerged with Arnsburger, Breidecker, Ehrenfelser, Hibernal, Osteiner, Reichensteiner, Rotberger, Schönburger and Witberger.
Some of the grape varieties bred by Heinrich Birk at the Research Institute Geisenheim : Arnsburger, Ehrenfelser, Gutenborner and Rotberger.

Sir William Duncan Paterson Stewart (born 6 June 1935) was President of the Royal Society of Edinburgh from 1999–2002 and Chairman of the Microbiological Research Authority.

Jean Paul Vuillemin (13 February 1861 – 25 September 1932 in Malzéville) was a French mycologist born in Docelles.
He studied at the University of Nancy, earning his medical doctorate in 1884. In 1892 he obtained his doctorate in sciences at the Sorbonne, and from 1895 to 1932 he was a professor of natural history at the medical faculty in Nancy.He described the genera Spinalia and Zygorhynchus. The mushroom genus Vuilleminia (Maire) is named after him.
In 1889 he employed the term "antibiotic" when describing the substance pyocyanin.In 1901 he transferred the yeast-like fungus that was named Saccharomyces hominis by Otto Busse and Saccharomyces neoformans by Francesco Sanfelice to the genus Cryptococcus due to its absence of ascospores. The French Academy of Sciences awarded him the Prix Montagne for 1902.In 1912 Vuillemin created the genus Beauveria to honor Jean Beauverie for his work the previous year on the type species - B. bassiana - transferring it from Botrytis.

Jean-Joseph Zéphirin Gerbe (21 December 1810 in Bras – 26 June 1890 in Bras) was a French naturalist. He was the first to discover the pattern of wing taxis, the absence (diastataxis) or presence (eutaxy) of the fifth secondary in birds.He was co-author of Ornithologie européenne, ou Catalogue analytique et raisonné des oiseaux observés en Europe with countryman Côme-Damien Degland (second edition, 1867). He also published a French translation of Alfred Brehm's Illustrirtes Thierleben with the title La vie des animaux illustrée : description populaire du règne animal (4 volumes).Species he described include Gerbe's vole.

Jean Baptiste Paulin Trolard (27 November 1842 in Sedan, Ardennes – 13 April 1910) was an anatomist known for his work on the anastomotic veins of the cerebral circulation. The "vein of Trolard" (the superior anastomotic vein) was named after him.He studied medicine at the Algiers Preparatory College of Medicine, afterwards working as a municipal physician in Saint Eugène, a suburb of Algiers. In 1861, he began work as an anatomy prosector at the college. From 1869 to 1910, he was a professor of anatomy at the Mustapha Pacha hospital Algiers.Known for his work against contagious diseases and epidemics, he was a proponent of free vaccinations for all indigent peoples. In 1882, he founded La Ligue de Reboisement in an effort to promote reforestation and prevent the deforestation of Algeria for the sake of creating pastureland. With Henri Soulié, he was co-founder of the Pasteur Institute of Algeria in 1894.