H. N. Brailsford is a prominent English traveler, correspondent, and essayist, and one of the most illuminating writers on world-problems. His books include “The War of Steel and Gold,” “Shelley, Godwin and their Circle.” Nicholas Murray Butler is President of Columbia University, Acting Director of the Division of Intercourse and Education of the Carnegie Endowment for International Peace and Chairman of the American Association for International Conciliation. Charles Roden Buxton is a prominent English Liberal, and member of the Union for Democratic Control. John Bates Clark is Director of the Division of Economics and History of the Carnegie Endowment for International Peace and Professor of Political Economy at Columbia University. Bernhard Dernburg is the German ex-Minister of Colonies, who spent some time in America at the beginning of the war as semi-official spokesman for German opinion. Charles W. Eliot is President Emeritus of Harvard University, and a leader in the peace movement. Rudolf Eucken is one of the most widely-known of living German philosophers. He visited America in 1913. G. Lowes Dickinson of Cambridge University, England, is author of “Letters of a Chinese Official,” “Justice and Liberty,” “A Modern Symposium,” etc. Franklin H. Giddings is Professor of Sociology at Columbia University. John A. Hobson is one of the best-known English economists, the author of “The Rise of Modern Capitalism,” “The Science of Wealth,” “The Industrial System,” “Towards International Government,” etc. Hamilton Holt is managing editor of _The Independent_. Paul U. Kellogg is an editor of the _Survey_ in New York. Walter Lippmann is one of the most brilliant of the younger American publicists, an editor of the _New Republic_, and author of “A Preface to Politics,” “Drift and Mastery,” and “The Stakes of Diplomacy.” A. Lawrence Lowell is President of Harvard University. Romain Rolland is the author of “Jean-Christophe.” His attitude on the war has forced his exile from France to Geneva. His eloquent book “Above the Battle” expresses the emotion of a cosmopolitan soul confronted with the madness of a world-war. Prof. L. Quidde was one of the leading German pacifists before the war. A. A. Tenney is assistant Professor of Sociology at Columbia University. Arnold J. Toynbee is the son-in-law of Prof. Gilbert Murray, and the author of “Nationality and the War,” and “Greek Policy Since 1882.” He is one of the most brilliant students of problems of nationality. Lillian Wald is head-worker at the Henry Street Settlement in New York City. William English Walling is a prominent American Socialist, editor of the _New Review_, and author of “Socialists and the War,” etc. Alfred E. Zimmern is in the English Education service, and is author of “The Greek Commonwealth.” PREFACE