The Panama Congress was without practical results and it was more than half a century before the scheme for international cooeperation on the part of American states was again taken up. In 1881 Secretary Blaine issued an invitation to the American republics to hold a conference at Washington, but the continuance of the war between Chile and Peru caused an indefinite postponement of the proposed conference. Toward the close of President Cleveland's first administration the invitation was renewed and the First International Conference of American States convened at Washington in 1890. It happened that when the Conference met Mr. Blaine was again Secretary of State and presided over its opening sessions. The most notable achievement of this Conference was the establishment of the Bureau of American Republics, now known as the Pan-American Union. The Second International Conference of American States, held in the City of Mexico in 1901, arranged for all American states to become parties to the Hague Convention of 1899 for the pacific settlement of international disputes and drafted a treaty for the compulsory arbitration, as between American states, of pecuniary claims. The Third Conference, held at Rio Janeiro in 1906, extended the above treaty for another period of five years and proposed that the subject of pecuniary claims be considered at the second Hague Conference. Added significance was given to the Rio Conference by the presence of Secretary Root who, although not a delegate, made it the occasion of a special mission to South America. The series of notable addresses which he delivered on this mission gave a new impetus to the Pan-American movement. The Fourth Conference, held at Buenos Ayres in 1910, was occupied largely with routine matters. It extended the pecuniary claims convention for an indefinite period. The conferences above referred to were political or diplomatic in character. There have been held two Pan-American Scientific Congresses in which the United States participated, one at Chile in 1908 and one at Washington, December, 1915, to January, 1916. A very important Pan-American Financial Congress was held at Washington in May, 1915. These congresses have accomplished a great deal in the way of promoting friendly feeling as well as the advancement of science and commerce among the republics of the Western Hemisphere. The American Institute of International Law, organized at Washington in October, 1912, is a body which is likely to have great influence in promoting the peace and welfare of this hemisphere. The Institute is composed of five representatives from the national society of international law in each of the twenty-one American republics. At a session held in the city of Washington, January 6, 1916, the Institute adopted a Declaration of the Rights and Duties of Nations. This declaration, designed to give a solid legal basis to the new Pan-Americanism, was as follows: