RAUCH, John Henry, physician, born in Lebanon, Pennsylvania, 4 September, 1828. He was graduated in medicine at the University of Pennsylvania in 1849. In the following year he settled in Burlington, Iowa. In 1850, on the organization of the State medical society, he was appointed to report on the "Medical and Economic Botany of Iowa," and this report was afterward published (1851). He was an active mere-her of the Iowa historical and geological institute, and made a collection of material--especially ichthyologic--from the upper Mississippi and Missouri rivers for Professor Agassiz, a description of which was published in "Silliman's Journal" (1855). In 1857 he was appointed professor of materia medica and medical botany in Rush medical college, Chicago, which chair he filled for tile next three years. In 1859 tie was one of the organizers of the Chicago college of pharmacy and filled its chair of materia medica and medical botany. During the civil war tie served as assistant medical director of the Army of Virginia, and then in Louisiana till 1864. At the close of the war he was brevetted lieutenant-colonel. On his return to Chicago, Dr. Rauch published a paper on " Intramural Interments and their Influence on Health and Epidemics" (Chicago, 1866). He aided in reorganizing the health service of the city, and in 1867 was appointed member of the newly created board of health and sanitary superintendent, which office he filled until 1873. During his incumbency the great fire of 1871 occurred, and the task of organizing and enforcing tile sanitary measures for the welfare of 11%000 houseless men, women, and children was suddenly thrown upon his department. In 1876 he was elected president of the American public health association, and delivered the annual, address on the "Sanitary Problems of Chicago" at the 1877 meeting of the association. In 1877, when the Illinois state board of health was created, Dr. Rauch was appointed one of its members, and elected its first president. He was elected secretary, to which office he has been re-elected annually ever since. In 1878-'9 the yellow-fever epidemics in the southwest engaged his attention, resulting in the formation of the sanitary council of the Mississippi valley and the establishment of the river-inspection service of the National board of health, inaugurated by Dr. Rauch in 1879. His investigations on the relation of small-pox to foreign immigration are embodied in an address before the National conference of state boards of health at St. Louis, 13 October, 1884, entitled "Practical Recommendations for the Exclusion and Prevention of Asiatic Cholera in North America" (Springfield, 1884). In 1887 he published the preliminary results of his investigations into the character of the water-supplies of Illinois. Dr. Rauch is a member of many scientific bodies and the author of monographs, chiefly in the domain of sanitary science and preventive medicine. His chief work as a writer is embodied in the reports of the Illinois state board of health in eight volumes.