Pan American Scientific Conferences, 304. Pan American Union, 303. Pan Americanism, definition of, 292; promoted by President Wilson's Mexican policy, 309, 311; put to test in the Great War, 312-317. Pecuniary Claims, against Mexico, 196, 197; British policy in regard to, 198; attempt to collect by force from Venezuela, 249-257; Resolutions of Second Hague Conference, 259, 260; considered by International American Conferences, 302, 303. Peru, liberation of, 33-37; war with Spain, 298; war with Chile, 299, 300; severs relations with Germany, 316. Philippine Islands, ceded to United States, 135, 136. Pierce, Franklin, Cuban policy of, 99-105. Platt Amendment, text of, 138-139; treaty with Nicaragua embodying, defeated by Senate, 285, 286; applied in part to Haiti, 289. Poinsett, Joel R., 49, 53. Polk, J. K., and Mexican War, 263, 264. Porter, Horace, presents resolution to Hague Conference of 1907 on forcible collection of pecuniary claims, 259. Porto Rico, cession of, demanded by United States, 135. Quitman, John A., relations with Lopez, 93-94. Recognition, withheld from Huerta, 308. See Belligerent Rights. Reed, Walter, yellow-fever investigations, 137. Reid, Whitelaw, commissioner to negotiate peace with Spain, 135. Roosevelt, Theodore, and Cuban reciprocity, 140-142; signs canal bill, 185; denounces Colombia's rejection of Hay-Herran convention, 186; recognizes Republic of Panama, 189; on acquisition of Canal Zone, 190; creates strained relations with Colombia, 192; on Monroe Doctrine, 251; interview with Holleben on German intervention in Venezuela, 252-254; refuses to arbitrate Panama question, 268; denounces Bryan treaty with Colombia as blackmail, 275; establishes financial supervision over Dominican Republic, 276-280; Central American policy, 280, 281; attempts to purchase Danish West Indies, 290; interpretation of Monroe Doctrine, 326, 327. Root, Elihu, author of Platt Amendment, 139; attempts to settle differences with Colombia, 268-270; visits South America, 303; on Monroe Doctrine, 330, 331. Rush, Richard, minister to England, conferences with Canning on schemes of Holy Alliance, 65-67, 72, 73. Russia, claims to northwestern coast of America, 75. Sagasta, P. M., Spanish minister, Cuban policy of, 128. Salisbury, Lord, reply to Olney's dispatch on Venezuelan boundary dispute, 242; agrees to arbitration of the boundary dispute, 248. Salvador, protests against protectorate over Nicaragua, 285-287; requests official definition of Monroe Doctrine, 334. Sampson, W. T., blockades Cuba, 134. San Ildefonso, secret treaty of, 261. San Martin, Jose de, takes part in Argentine revolution, 30-32; liberates Chile, 32, 33; liberates Peru, 33-37; relations with Bolivar, 43, 44; death, 45.