From 1872 to 1918 he was a professor; during this period, from 1887 to 1892 he was the dean of the Faculty of Mathematics and Natural Sciences.
During this period, from 1887 to 1892, he was the dean of the Faculty of Mathematics and Natural Sciences. From 1872 to 1918 he was a professor.
From 1872 to 1918 he was a professor. During this period, from 1887 to 1892, he was the dean of the Faculty of Mathematics and Natural Sciences.
From 1872 to 1918 he was a professor. During this period, from 1887 to 1892, he was the dean of the Faculty of Mathematics and Natural Sciences.