It is hereby understood and agreed that in case of changes in the tariff of either country which deprive the other of the advantage which is represented by the percentages herein agreed upon, on the actual rates of the tariffs now in force, the country so deprived of this protection reserves the right to terminate its obligations under this convention after six months’ notice to the other of its intention to arrest the operations thereof. * * * * * And it is further understood and agreed that if, at any time during the term of this convention, after the expiration of the first year, the protection herein granted to the products and manufactures of the United States on the basis of the actual rates of the tariff of the Republic of Cuba now in force, should appear to the government of the said Republic to be excessive in view of a new tariff law that may be adopted by it after this convention becomes operative, then the said Republic of Cuba may reopen negotiations with a view to securing modifications as may appear proper to both contracting parties. ARTICLE XI The present convention shall be ratified by the appropriate authorities of the respective countries, and the ratifications shall be exchanged at Washington, District of Columbia, United States of America, as soon as may be before the thirty-first day of January, 1903, and the convention shall go into effect on the tenth day after the exchange of ratifications, and shall continue in force for the term of five (5) years from date of going into effect, and from year to year thereafter until the expiration of one year from the day when either of the contracting parties shall give notice to the other of its intention to terminate the same. * * * * * This convention shall not take effect until the same shall have been approved by the Congress. In witness whereof we, the respective Plenipotentiaries, have signed the same in duplicate, in English and Spanish, and have affixed our respective seals, at Havana, Cuba, this eleventh day of December, in the year one thousand nine hundred and two. TASKER H. BLISS [SEAL.] CARLOS DE ZALDO [SEAL.] JOSÉ M. GARCIA MONTES [SEAL.] And whereas by the terms of the said Convention it is provided that the ratifications thereof should be exchanged at the City of Washington as soon as may be before the thirty-first day of January, 1903, which period was by a Supplementary Convention signed by the respective plenipotentiaries of the two countries on January 26, 1903, extended to the thirty-first day of March, 1903; And whereas the said Convention of December 11, 1902, as amended by the Senate of the United States, and the said Supplementary Convention of January 26, 1903, have been duly ratified on both parts and the ratifications of the two Governments were exchanged in the City of Washington on the thirty-first day of March, 1903;