Pichon, Louis André, French _chargé d’affaires_, remonstrates with Leclerc and is superseded, i. 408; ii. 268; complains to Talleyrand of the attitude of the United States, i. 437, 439; observes Jefferson’s close relations with Thornton, ii. 354; invited by Jefferson to meet Merry at dinner, 369. Pickering, Judge John, impeachment of, ii. 143 _et seq._; trial of, 153 _et seq._; irregularity of trial, 158. Pickering, Timothy, senator from Massachusetts, i. 88; ii. 110; quarrels with Yrujo, i. 425; on the admission of Louisiana to the Union, ii. 105 _et seq._, 160; his letter to George Cabot on the impending dangers, 161, 164; receives Cabot’s reply, 166 _et seq._; letter of, to Rufus King on Burr’s candidacy for the governorship, 179, 390, 391; votes for Adams’s resolution, iii. 151; willing to let the ship run aground, 210; silent about the “Chesapeake” affair, iv. 29; his party in the Senate, 146; praises Monroe, 129, 167; won by Rose, 184 _et seq._; cultivated by Rose, 232; exerts himself to form a coalition with the British ministry, 234; his letter to Governor Sullivan, 237 _et seq._; effect in England of his letter to his constituents, 333; declares Jefferson a tool of Napoleon, 347, 442; reports Jefferson’s language about the embargo, 359, 442; his triumph, 401, 409; described by John Adams, 402; maintains relations with Rose, 460; his toast at Jackson’s dinner, v. 217; his speech on the occupation of West Florida, 321, 322; loses his seat in the Senate, vi. 116; his attempt to call a State convention in 1812, 402; favors disunion, viii. 4, 5; urges a New England Convention in January, 1814, 5–7; exhorts Governor Strong to seize the national revenues, 223, 224; acquiesces in British demands, 288; suggests doubts of George Cabot’s earnestness, 290, 291; approves the report of the Hartford Convention, 300, 301; considers the Union dissolved, 300, 309; member of the Fourteenth Congress, ix. 107; on the power of internal improvement, 149. Pierce, John, killed by a shot from the “Leander,” iii. 199, 211. Pigot, H., captain of British frigate “Orpheus,” reports number of Creek warriors, vii. 258. Pike, Zebulon Montgomery, lieutenant of First Infantry, explores the sources of the Mississippi, iii. 213; and of the Arkansas and Red rivers, 214, 223; brigadier-general, vii. 152; captures York, 154; killed, 155. Pilkington, A., lieutenant-colonel commanding British expedition to Moose Island, viii. 94. “Pilot,” British newspaper, on the American frigates, vii. 16.