The general program will open on Monday afternoon with a joint meeting of the Sociological, the Statistical, and the Social Science Associations in the Metropolitan Building as guests of the Metropolitan Life Insurance Company, at which will be delivered the presidential addresses of the presidents of the three societies. In the evening of the same day there will be held the principal public meeting arranged by citizens as an official welcome to the associations. The meeting will be held in Carnegie Hall, and addresses will be made by Chairman Joseph H. Choate, President Taft, Governor Hughes, Mayor McClellan and Dr. Nicholas M. Butler. Tuesday morning and afternoon will be devoted to joint meetings at which will be given the presidential addresses of the Historical, the Economic, the Political Science, and the Labor Legislation Associations; these will be delivered respectively by A. B. Hart, D. R. Dewey, A. Lawrence Lowell and Henry W. Farnam. The detailed programs of the several societies contain a long list of topics to be treated by trained specialists. Only the more important can be mentioned. The Tuesday evening meeting of the Historical Association, held at the New York Historical Society Building, will be devoted to a discussion of the work of historical societies in Europe. Delegates from England, Germany, Spain, France and Holland will describe their respective national historical activities. The Wednesday morning joint session of the Historical and Political Science Associations will have as topic “British Constitutional and Political Development, with Special Reference to the Centenary of Gladstone,” and papers will be read by Ambassador Bryce, Prof. Dennis, of Wisconsin; Prof. Wrong, of Toronto; Mr. Porritt, and by Mr. Fisher, of Oxford. Thursday, December 30, will in many respects be the most valuable for the history student. Morning and afternoon there will be conferences at Columbia University upon special historical topics. In the morning the following conferences will be held: Ancient History, Prof. Westerman, of Wisconsin, chairman; Medieval History, in join session with the American Society of Church History, Prof. Emerton, of Harvard, chairman; American History, in joint session with the Mississippi Valley Historical Association, to discuss the Westward movement, Prof. Paxson, of Michigan, chairman; Conference of Archivists, Prof. Ames, of Pennsylvania, chairman. In the afternoon the conferences will be continued: Modern European History, with Prof. Robinson, of Columbia, chairman; American History, Ethnic Elements in United States History, Prof. Greene, of Illinois, chairman; Conference of State and Local Historical Societies, Prof. Sioussat, of the University of the South, chairman.