Impressment becomes a _casus belli_, ii. 116–118; not expressly mentioned as such by Pinkney, 18; or in the annual message, 125; treated by House Committee of Foreign Relations, 134, 135; mentioned by Grundy, 139; by Madison’s war-message, 222; only obstacle to peace, 430–432, 450–452; extent of, 451, 452. Impressments, i. 74, 292, 351, 352. India, career of Marquess Wellesley in, i. 266. Indiana Territory, population in 1810, i. 289; created in 1800, ii. 68; its dispute about the introduction of slavery, 75; adopts second grade of territorial government, 76. Indians in 1810, i. 318; in the Northwest, ii. 69; their condition described by Governor Harrison, 69; trespasses on their territory, 70; effects of intoxication upon, 71, 72; murders committed upon, 72, 73; Jefferson’s policy toward, 73–75; Harrison’s treaties with, in 1804 and 1805, 75; Tecumthe and the Prophet, 78; Jefferson’s refusal to recognize them as a confederated body, 79; establishment at Tippecanoe Creek, 79–81; their hostility to cessions of land, 82, 87; their land-cession of Sept. 30, 1809, 83, 84; their outbreak imminent in 1810, 85; outbreak delayed by British influence, 85; their interview with Harrison, Aug. 12, 1810, 86–88; government wishes peace with, 89; of the Six Nations in Upper Canada, wish to remain neutral, 319; their employment in war by the British, 320; murders by, 393, 394. Infantry, Fourth Regiment of, ordered to Indiana July, 1811, ii. 92, 93; arrives, 94; part of the expedition to Tippecanoe, 96; losses in the battle, 104; its share in the battle, 107; ordered to Detroit, 110; marches to Detroit, 298; at the battle of Maguaga, 325. Invisibles, the, i. 363. Jackson, Francis James, his reputation, i. 96; appointed British minister to the United States, 97; his instructions, 99–105; sails for America, 105; Gallatin’s expectations from, 111, 117; arrives at Washington, 115, 116; his impressions, 117–120; his negotiation, 120–132; rupture with, 132; his anger, 154, 155; his complaints, 156; his reception in Baltimore and New York, 157; discussed before Congress, 176, 178, 179, 182; his letters from New York and Boston, 212–218; returns to England, 219; his treatment by Wellesley, 218, 219, 269, 271, 272; his influence with the British government, ii. 13; his account of Pinkney’s “inamicable leave,” 20; his opinion of Augustus J. Foster, 22; his death, 22. Jackson, Mrs. F. J., i. 115, 157. “Java,” British frigate, her action with the “Constitution,” ii. 385, 386.