5. Acquisition of Arizona, New Mexico, California, and other territory at close of Mexican War, 1848 ([282]-[283]).
6. The Gadsden purchase, 1853 ([283]).
7. Settlement of the Oregon boundary question, 1846 ([284]-[286]).
8. Purchase of Alaska from Russia, 1867 ([479]).
9. Acquisition of Tutuila in Samoan group, 1899 ([481]-[482]).
10. Annexation of Hawaii, 1898 ([484]).
11. Acquisition of Porto Rico, the Philippines, and Guam at close of Spanish War, 1898 ([493]-[494]).
12. Acquisition of Panama Canal strip, 1904 ([508]-[510]).
13. Purchase of Danish West Indies, 1917 ([593]).
14. Extension of protectorate over Haiti, Santo Domingo, and Nicaragua ([593]-[594]).