The fundamentals in a scientific study of international relations by Stephen P. Duggan.- International relations in the ancient world by Professor Michael I. Rostovtseff.- Mediieval diplomacy by Prof. Carlton J.H. Hayes.- Development of diplomacy in modern times by Hon. James Brown Scott.- Economic factors in international relations by Professor James Lawrence Laughlin.- Specific agencies for the proper conduct of international relations, by John Bassett Moore.- The evolution of international private law by Hon. Esteban Gil Borges.- Latin America as a factor in international relations by Hon. Leo S. Rowe.- The Far East as a factor in international developments by Hon. Paul S. Reinsch.- The United States as a factor in the development of international relations by Professor Edwin M. Borchard 26