Largest city of New Hampshire, and only seaport in the State, on the Piscataqua River, 3 m. from the ocean; is by rail 57 m. NE. of Boston, a handsome old town and favourite watering-place; near it is a U.S. navy-yard. 2,, On the Ohio River, in Ohio; is the centre of an extensive iron industry. 3,, Seaport and naval station on the Elizabeth River, Virginia.