Description:
(Chemist) Karl Ernst Claus, a Russian chemist and naturalist of Baltic German origin, was a prominent professor at Kazan State University and a respected member of the Russian Academy of Sciences. He is renowned for his discovery of the chemical element ruthenium, which he named after Russia. Claus also gained recognition for his innovative use of quantitative methods in botany, establishing himself as one of the early scientists to apply such approaches in the field.