Botany; and Benjamin Bush, a year later, was given the Chair of Chemistry. The commencement of this institution occurred in 1768, when the degree of M.B. was given to seventeen graduates. In 1779 political reasons led to the abolition of the College of Philadelphia, the University of Pennsylvania taking its place. Ten years later the former institution was restored, and in 1791 the two institutions were united. The present Medical Department of the University of Pennsylvania is, therefore, the legitimate continuation of the first medical school in America. [Illustration: 0301] The Medical Department of King's College, New York, now Columbia College, was organized in 1767, by Clossey, an Irishman; Middleton, a Scotchman; James Smith, a graduate of Leyden; Tenant, an alumnus of Princeton College; and Bard, who was by far the most eminent of the group, a Philadelphian by birth, who had studied under the best masters in England. The Medical Department of Harvard University was organized in 1783. Most prominent in connection with it was Dr. John Warren, the first teacher of anatomy and surgery, and the founder of a family of eminent medical men, whose descendant, Dr. J. Collins Warren, is to-day an occupant of the chair of surgery in the same school. The Medical Department of Dartmouth College was organized in 1798 by Dr. Nathan Smith,--a man of great energy and unusual versatility. While these medical colleges were developing their strength the medical profession were not idle, and institutions and libraries sprang up in various places. The Pennsylvania Hospital, for instance, founded in 1762, is to be credited with the oldest medical library in this country, many{283} of its volumes having been selected especially for it by Louis, of Paris, and the famous Lettsom, of London. It now contains nearly fifteen thousand volumes. The library of the New York Hospital, not quite so large, was founded in 1776; that of the College of Physicians, in Philadelphia, in 1788. The profession of New Jersey organized the State Medical Society in 1765. In 1781 was founded the Massachusetts Medical Society. In 1787 arose the College of Physicians of Philadelphia.