MICHIE, Peter Smith (my'-key), engineer, born in Breehin, Scotland, 24 March, 1839. He came to this country in early life, and was graduated at Woodward high-school, Cincinnati, in 1857, and at the United States military academy in 1863, where he stood second in his class, he was assigned to the engineer corps as 1st lieutenant, and served as assistant engineer in the operations against Charleston, South Carolina, in 1863-'4, as chief engineer of districts in the Department of the South, and as assistant and then chief engineer of the Army of the James. He was brevetted captain and major, 28 October, 1864, for services in the campaign of that year against Richmond, brigadier-general of volunteers, 1 January, 1865, "for meritorious services in 1864," and lieutenant-colonel, 9 April, 1865, for the campaign that ended in Lee's surrender. He was promoted captain, 23 November, 1865, and since 1867 has served on the staff of instruction at the United States military academy, first as assistant in the departments of engineering and chemistry, and after 14 February, 1871, as professor of natural and experimental philosophy. From June till November, 1870, he served on a commission that visited Europe to collect information on the fabrication of iron for defensive purposes. Professor Michie has been a mere-bet of the board of overseers of the Thaver school of civil engineering of Dartmouth since i871. Princeton gave him the degree of Ph.D. in 1871, and Dartmouth that of N.A. in 1873. He has published " Wave Motion, relating to Sound and Light" (New York, 1882); "Life and Letters of Emery Upton" (1885); " Analytical Mechanics" (1886); and " Hydromechanics" (West Point, 1887).