IOWA (1,754), one of the United States, on the right bank of the Mississippi River, with Minnesota to the N. and Missouri to the S., and the Missouri River on its western border; is well watered, very fertile, and, though liable to extremes of temperature, very healthy; agriculture flourishes, the country being an undulating plain and most of the soil being arable; cereals and root crops are raised, cattle fed; there are poultry and dairy farms; coal, gypsum, and lead are mined; manufactures include mill products, canned meats, and agricultural implements; general education in the State is advanced, State policy in this respect being liberal; Iowa was admitted to the Union, 1846; Des Moines (32) is the capital; Iowa (7) is the seat of the State University and of some flour-mills and factories.

IPHICRATES, a famous Athenian general, the son of a shoemaker, celebrated throughout Greece for his defeat of the Spartans in 392, as well as for other great military exploits, for which he was rewarded by his countrymen with almost unprecedented honours; d. 348 B.C.

IPHIGENIA, the daughter of Agamemnon and Clytemnestra; her father having killed a favourite deer belonging to Artemis in Aulis as he was setting out for Troy, the goddess was offended, and CALCHAS (q. v.), when consulted, told him she could only be appeased by the sacrifice of his daughter; this he proceeded to do, but as he was preparing to offer her up the goddess descended in a cloud, carried her off to Tauris, and made her a priestess in her temple.  The story has been dramatised by Euripides, Racine, and Geothe.

IPSUS, a small town in Phrygia, the scene of a great contest between the generals of Alexander for succession to the empire.

IPSWICH (57), a town in Suffolk, on the Orwell, 12 m. from the sea; is an old town, and has a number of interesting, as well as some old-fashioned, buildings; is well provided with churches and educational establishments, and was the birthplace of Cardinal Wolsey; manufactures agricultural implements, and exports besides these leather, oil, coke and agricultural produce.

IQUIQUE (16), important seaport in the N. of Chili; exports nitrates, iodine, and silver.

IRAK-ARABI, ancient Babylonia watered by the Euphrates and the Tigris.

IRAN, the ancient name or plateau of Asia, extending N. and S. between the Hindu Kush and the Persian Gulf, and E. and W. between the Indus and Kurdistan; inhabited by the Aryans; is the official name for Persia.

IRANIANS, the inhabitants of Iran, a people constituting an important branch of the Indo-European family, including the Persians, Medes, &c.

IRAWADI, a river, navigable throughout its whole course, formed by the union of two streams from the mountains of Thibet; flows S. through Burma 700 miles, passing Mandalay, and falling into the Bay of Bengal in a delta, on one branch of which stands Rangoon.