Agreements between the United States and Spain respecting air transport services, amending the agreement of December 2, 1944

[Effected by exchange of notes verbales dated at Madrid December 21, 1945, and January 15, 1946 (Department of State, Treaties and Other International Acts Series No. 2131, or 62 Stat. (pt. 3) 4078), and exchange of notes verbales dated at Madrid February 21 and March 12, 1946 (Treaties and Other International Acts Series No. 2132, or 62 Stat, (pt.3) 4081).]