MITSCHERLICH, Eilhard, German chemist: h. Neuende, near Jever, Ol denburg, 7 Jan. 1794; d. Schonberg, near Ber lin, 28 Aug. 1863. He was the son of a clergy man and nephew of the celebrated scholar, Christophe Wilhelm Mitscherlich (1760-1854). Going to Heidelberg in 1811, he devoted him self to philology and more particularly to Per sian. In 1813 he went to Paris, hoping to ob tain permission to join the embassy which Na poleon I was about to send to Persia. Political changes ended this plan and Mitscherlich then determined to study medicine in order to have the privileges accorded to physicians traveling in the East. He went to GOttingen to study medicine, and while there published a book on 'Persian History,' compiled from manuscripts in the university library. It was printed in Persian and Latin (1814). While studying medicine in Gottingen, his attention was at tracted to geology, chemistry and physics, and in 1818 he went to Berlin to work in the lab oratory of H. F. Link (1767-1851). His re
searches led to the discovery of the law of Isomorphism (1819). Berzelius invited him to Stockholm (MO), whence he returned in 1822 to fill the chair of chemistry in Berlin. One of his earliest discoveries in Berlin was that of the double crystalline form of sulphur, one of the first observed cases of dimorphism. His investigations regarding the production of arti ficial minerals and his memoir on benzine and the formation of ether were also important. His principal work is (Lehrbuch der (2 vols., 1829-1835, 4th ed., 1840-48). After his death his notes were published in the 'Me moirs) of the Berlin Academy (1868). Con sult Rose, Mitscherlich' (Berlin 1864) and (Erinnerungen an Eilhard Mitscher lich' (1894).