About Karl Ernst Claus
Karl Ernst Claus, also known as Karl Klaus or Carl Claus (Russian: Карл Ка́рлович Кла́ус, romanized: Karl Karlovich Klaus; 22 January 1796 – 24 March 1864), was a Russian chemist and naturalist. Claus was a professor at Kazan University and a member of the Russian Academy of Sciences. He was primarily known as a chemist and discoverer of the chemical element ruthenium, which he named after his homeland of Russia, but also as one of the first scientists who applied quantitative methods in botany. In 1827, Claus became involved, as an assistant of Eduard Friedrich Eversmann, in the botanical research of the steppes of the rivers Ural and Volga.
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