Ludwig Eyrich

Ludwig Eyrich (born March 6, 1841 in Mannheim ; † June 26, 1892 ) was a German scientist , botanist and teacher . He was one of the first to deal with the problems of phylloxera in Baden .

Life

Ludwig Eyrich went to school in Mannheim. In the fall of 1857 he moved to the Polytechnic University of Karlsruhe to devote himself primarily to mathematical and physical studies. In 1859 he turned to Heidelberg , where he worked under the direction of Professors Arnold and Pagenstecher in particular with human anatomy and zootomy . In August 1863 he earned his doctorate in philosophy with the grade "summa cum laude" .

When he returned to his hometown Mannheim, he initially arranged a large part of the zoological collection of the Grand Ducal Museum. He also worked as a teacher for mathematics and natural sciences at various teaching institutions in Mannheim, which profession he later gave up. On the other hand, he administered the office of chief aichmeister of the city of Mannheim until his death .

Eyrich was one of the first to deal with the phylloxera issue in Baden . As a result of this, he was elected to the vine monitoring commission by the grand ducal government and worked in this direction for many years. From the Kgl. Appointed by the Prussian government as a commissioner, he stayed three years to observe the phylloxera herd in Linz on the Rhine .

In addition to this activity, of which numerous lectures and papers published in daily papers and agricultural journals testify, Eyrich was particularly concerned with malacozoology and entomology . Its extensive collections relating to this are owned by the Mannheim Association for Natural History and are displayed in the Grand Ducal Museum. He was particularly drawn to microscopic studies, and when looking at the microorganisms , it was the Desmidiaceae and Bacillariacee , about which the Palatinate flora has the first reports from his hand. His last work, a list of the Baden diatoms , already covered 200 species, all of which he has identified. A collection of diatom preparations left behind has passed into the possession of the University of Heidelberg . In 1880 Eyrich married Pauline (née Reader), who had two sons. Having suffered from a heart attack for some time, he died unexpectedly on June 26, 1892.

Eyrich had been a member of the German Botanical Society since 1888 , honorary member of the " Pollichia ", long-term member of the Mannheim Society for Natural History, the Malakozoological Society (since 1868), the Botanical Society for Baden and other associations. A special friendship connected him with the in Schwetzingen late naturalist Dr. Karl Friedrich Schimper , and he has more than once preserved his priority rights. Eyrich was one of the few whom this strange man honored his trust until his death. On his deathbed, Schimper gave him the manuscript of his never printed but often mentioned page position theory, which Eyrich's wife had given to Heidelberg University as a gift, following a request made by her husband during her lifetime.

source

• Reports of the German Botanical Society , from German Botanical Society, 1892.