With 1831, however, began a third and more successful period in the history of St. John's. In that year the Rev. Hector Humphreys, then only thirty-four years of age, was chosen president. He was a native of Connecticut and a graduate of Yale College in 1818, and was called to St. John's from the professorship of Ancient Languages at Washington (Trinity) College in his native State. The effect of his energy and devotion was soon recognized, and, largely through his efforts, was passed the compromise of 1832. The curriculum was enlarged, the instruction made more thorough, and classes were yearly graduated, with but six exceptions, until his death in 1857. His energy was very great, his learning wide and accurate. In 1834, after travelling about the State in the interests of the college, he succeeded in raising about $11,000, which were used in the erection of a second building for the college, which most appropriately has since been called by his name. During his administration, the professors' houses were also built, as was Pinkney Hall, a third building for the use of the college. Dr. Humphreys also secured cabinets and philosophical apparatus for the college and gave instruction in Political Economy, Latin and Greek, Chemistry, Geology, Natural Philosophy, Astronomy, Composition, Elocution, Evidences of Christianity, Moral and Intellectual Philosophy, Rhetoric, and Logic. Verily, an encyclopaedic man of vast industry! Only four years after Dr. Humphreys' death the War of the Rebellion broke out, and St. John's, unlike the temple of Janus, closed its doors at the rumors of war. The buildings were used as an hospital, and not until 1866 was the college again reopened with the well-known educator, Henry Barnard, at its head. In less than a year he resigned to become the first United States Commissioner of Education, and neither he nor his successor, Dr. James C. Welling, who was principal until 1870, was able to graduate a class. Since the beginning of the administration of the next principal, James M. Garnett, LL. D., the succession of classes has been unbroken and the college has steadily advanced in reputation and usefulness. Dr. Garnett made the English department especially excellent and, after ten years faithful service, resigned in 1880. The Rev. J.D. Leavitt, his successor, made a departure from the old classic curriculum and organized a department of Mechanical Engineering. After he resigned Prof. W.H. Hopkins acted as principal for a time and introduced military discipline, having secured the detail of an officer from the United States Army as instructor in Military Tactics.