Background
Hagen was born and died in Königsberg, Prussia.
chemist lichenologist university professor
Hagen was born and died in Königsberg, Prussia.
He founded the first German chemical laboratory at the University of Königsberg, thus establishing the scientific discipline of pharmaceutical chemistry in Germany. He worked as a Professor in the field of physics, chemistry and mineralogy. Another daughter, Louise Florentine, married the physicist Franz Ernst Neumann.
German Academy of Sciences Leopoldina.