Open-door policy in China, Hay's note of September 6, 1890, 85;
Anglo-American origin of, 87; guaranteed by treaty, 284.

Oregon, joint occupation of, 107.

O'Shaughnessy, Nelson, 162.

Pacific and Far Eastern Questions, Conference on, 266-290.

Panama Canal, effect of, on naval policy, 132.

Panama Canal Zone, seizure of, 142.

Panama Congress of 1826, 153, 154.

Panama Tolls Act, 121.

Pan-American Financial Congress, 157.

Pan-American Scientific Congress, 157.