The American Society of Tropical Medicine was established March 9, 1903. It has been chartered as a perpetual corporation by the State of Pennsylvania. It is one of the component organizations of the Congress of American Physicians and Surgeons. Its purpose is to advance the knowledge of tropical diseases by encouraging original research by its members and others; collecting and recording facts ascertained by such researches, and disseminating information thereof by discussion among its members and by the publications of papers read before the Society. The affairs of the Society are administered by a Council of five, a President and a Secretary, elected by the Society. Any regular American physician or scientist interested in the study of tropical diseases is eligible for Active Membership. Any regular physician or scientist not a resident of the United States, who has contributed to the knowledge of tropical diseases is eligible for Corresponding Membership.