DE ROSSET, Armand John, physician, born in Wilmington, N. C., 17 November 1767 ; died there, 1 April 1859. He was the son of Moses John De Rosset, of London, and Mary Ivie, a native of the West Indies. In 1784 he was matriculated at Princeton. At the close of the first session of his collegiate course, a fellowstudent, Robert Goodloe Harper, observing his rigid economy and close attention to duties, and his determination to remain at the College during vacation, for want of funds to defray the expenses of the journey home, offered to be his teacher in the studies of the next year. The offer was gladly accepted, and at the opening of the next session De Rosset was promoted to an advanced class, completing his course in three years. While at the medical College he enjoyed the friendship of Dr. Benjamin Rush, with whom he held a long correspondence, many copies, of the letters of the latter being still in the possession of the family. He was appointed by the president of the United States to be post physician, which office he held for many years. During two or more terms he served in the town government. His writings were confined to communications to medical publications, no copies of which are known to exist. A pamphlet ' De febnbus intermittentibus, a Latin thesis, delivered at his graduation, was published in 1790.

His son, Moses John De Rosset, physician, born in Wilmington, N. C., 11 January 1796; died there, 30 June 1826, was graduated at the New York medical College in 1817 or 1818. He was associated in practice with his father from 1818 until his death. His daughter, Mary Jane, married the Rev. Moses Ashley Curtis, the botanist.

His son, Armand John De Rosset, physician, born in Wilmington, 6 October 1807, attended the medical College of Charleston, South Carolina, in 1826'7, and was graduated at the medical department of the University of Pennsylvania in 1827. He practiced his profession in Wilmington from 1828 till 1837, when he engaged in mercantile affairs, which he relinquished a few years since.

His grandson, Moses John De Rosset, physician, born in Pittsboro, N. C., 4 July 1838; died in Wilmington, 1 May 1881, in youth showed remarkable aptitude for languages and mathematics. He passed three years in Geneva at the famous school of Diedrich, and spent six months in Cologne to perfect himself in German. He was graduated at the medical department of the University of New York in 1859, was appointed resident physician at Bellevue hospital, New York, and entered upon the duties in 1859. At the beginning of the civil war he entered the Confederate army as assistant surgeon, and, after serving through Stonewal1 Jackson's valley campaign, was promoted to full surgeon, and assigned to duty in Richmond. Subsequently he was detached as inspector of hospitals of the Department of Henrico.

At the close of the war he moved to Baltimore, where he was appointed adjunct professor of chemistry in the medical department of the University of Maryland. He was also professor of chemistry in the dental College in that City. He here prepared himself for practice in diseases of the eye and ear, and in 1873 removed to Wilmington, N. C., and devoted himself to this specialty, and became a contributor to the "North Carolina Medical Journal." He removed to San Antonio, Texas, on account of his health, but, finding no relief, returned to Wilmington in September 1881. During his residence in Baltimore he published a translation of Bouchardat's " Annual Abstract of Therapeutics, Materia Medica, Pharmacy, and Toxicology for 1867." His writings were chiefly contributions to medical journals, his last regular paper being communicated to the "American Journal of the Medical Sciences" for October 1878, entitled " The Muscle of Accommodation, and its Mode of Action." He devised a new and efficient form of inhaler for anaesthesia, and a new form of canule scissors for operating within the eye. He demonstrated by frozen section that after the extraction of the lens the lenticular fossa disappears, and the anterior surface of the vitreous becomes convex.