DUBOIS, Henry Augustus, physician, born in New York City, 9 August 1808; died in New Haven, Connecticut, 13 January 1884. He was graduated at Columbia in 1827, and at the College of physicians and surgeons in 1830, after which for a time he was house physician to the New York hospital. In 1831 he visited Europe, and there pursued studies under the masters in surgery and medicine. During his stay in Paris he became a member of the Polish committee there, holding weekly meetings at the residence of either Lafayette or J. Fenimore Cooper. It was his intention to join the Polish army, but he was finally dissuaded from that purpose.

In 1834 he was one of the few Americans who followed the body of Lafayette to the grave, and was exposed in the attack made by the "red republicans" to seize the body. He returned to New York in November of that year, and entered on the active practice of his profession, becoming one of the physicians to the New York dispensary. In 1835 he married a daughter of Peter A. Jay, of the New York bar. Impaired health soon caused his removal to Ohio, where he had inherited a large tract of land, on which he laid out and in a great measure built up Newton Falls. While residing in the west he withdrew from active practice, but continued to act in consultation. In 1852 he returned to New York greatly improved in health, and became president of the Virginia cannel coal company, and later of the Peytona cannel coal company. Two years later he removed to New Haven, where he has since resided. Dr. Dubois is a member of scientific societies. Although he has published no contributions to medical science, he has largely influenced the opinions of his professional brethren, especially in reference to scarlet fever. He contended more than forty years ago that this disease is an asthenic epidemic, and not amenable to medicines until it has run its course. In 1864 he received from Yale the degree of LL.D. for his reply to the seven English essayists, which was republished in London

His son, Augustus Jay Dubois, civil engineer, born in Newton Falls, Trumbull County, Ohio, 25 April 1849, was educated at the Sheffield scientific school of Yale, where he received the degrees of Ph. B. in 1869, C. E. in 1870, and Ph.D. in 1872, after which he devoted two years to special study in mechanics at the Freiburg, Saxony, mining school. On his return to the United States he was made professor of civil and mechanical engineering in the Lehigh University, Bethlehem, Pennsylvania, holding that chair from 1874 till 1876, when he became professor of mechanical engineering in the Sheffield scientific school, succeeding in 1884 to the chair of civil engineering in that institution, made vacant by the death of Professor William A. Norton.

Professor DuBois is a member of numerous scientific societies, and has lectured on "' Science and Faith," "Science and the Supernatural," "Science and the Spiritual," and similar subjects. Besides frequent contributions to the engineering press he has published "Elements of Graphical Statics" (New York, 1875); Weyranch's "Calculations of Strength and Dimensions of Iron and Steel Construction," edited and translated (1877); " Hydraulics and Hydraulic Motors" (1877) and "Theory of Steam Engine" (1878), being two volumes of Weisbach's " Mechanics," translated and edited; Rontgen's "Principles of Thermodynamics," translated and edited (1880). "The Strains in Framed Structures" (1883); and "Tables for Bridge Engineers" (1885).