Treaties and other international acts series. 1847. Weather stations, cooperative program in Cuba, agreement between United States and Cuba, amending and extending agreement of July 17 and Aug. 2, 1944, effected by exchange of notes dated Habana Aug. 21, 1947 and Jan. 27, 1948; entered into force Jan. 27, 1948, effective retroactively July 1, 1947.