Johann Nepomuk Von Fuchs, a German chemist, born at Mattenzell, May 15, 1774, died in Munich, March 5, 1850. He was professor of mineralogy and chemistry at Landshut and subsequently in Munich, where he was also appointed keeper of the mineralogical collections, and held other important functions in connection with scientific departments. He made various chemical discoveries and researches, and was especially distinguished for his invention of soluble glass and its application to stereochromy, as explained in his Bereitung, Eigenschaften und Nutzanwendung des Was-serglases (1857). Among his most valuable contributions to mineralogy is his Naturgeschichte des Mineralreichs, included in his Gesammelte Schriften (1856). His life has been written by Kobell (1856).