As we now take up the work of this convention, which already gives sure promise of being notable among the conventions that have called together men of different nations, let us confidently assure ourselves that the great purpose which has throughout controlled in the different stages of its organization will be realized; that because the Congress has been held, the nations of the earth will find themselves drawn more closely together; that human thought will possess a more unified organization and human life a more unified expression. Following these addresses of welcome and of response came the first paper of the specific programme, designed to be introductory to the division, department, and section addresses of the week. This address, which will be found in full in its proper place, on pages 135 to 147 of this volume, was given by Dr. Simon Newcomb, President of the Congress and Chairman of the Organizing Committee, whose labors for fifteen months were thus brought to a brilliant conclusion. At the close of Dr. Newcomb's address the assembly was dismissed by a few words of President Francis, in which he placed at the disposition of the members of the Congress the courtesies and privileges of the Exposition, and expressed the hope and belief that their presence and the purpose for which they were assembled, would be the crowning glory of the Universal Exposition of 1904. On Tuesday, September 20, the seven division addresses and the twenty-four department addresses were given, all the speakers being Americans: Royce, in Normative Science; Wilson, in Historical Science; Woodward, in Physical Science; Hall, in Mental Science; Jordan, in Utilitarian Science; Lowell, in Social Regulation; and Harris, in Social Culture, treating the main divisions of science and their applications, each dwelling particularly on the scope of the great field included in his address and the unification of the work therein. The forty-eight department speakers divided the field of knowledge, one address in each department giving the fundamental conceptions and methods, the other the history and development of the work of the department during the last century.