Most populous but one of the American States, lies N. of Mason and Dixon's Line, separated by New Jersey, on the E. by the Delaware River, with Ohio on the W., New York on the N., and Lake Erie at the NW. corner. The country is hilly, being traversed by the Blue Mountains and the Alleghany ranges, with many fertile valleys between the chains, extensive forests, and much picturesque scenery. The Cumberland Valley in the W. is one of the best farming lands in New England. The Alleghany River in the W. and the two branches of the Susquehanna in the centre water the State. Pennsylvania is the greatest mining State in the Union; its iron-mines and petroleum-wells supply half the iron and most of the oil used in the country; its bituminous coal-beds in the W. are extremely rich, and the anthracite deposits of the E. are unrivalled; in manufactures, too, it ranks second among the States; these are very varied, the most valuable being iron, steel, and shipbuilding. Founded by Swedes, it passed to English settlers in 1664; the first charter was granted to William Penn in 1681. In the Revolution it took a prominent part, and was among the first States of the Union. Education is well advanced; there are 20 State colleges. The mining population includes many Irish, Hungarian, and Italian immigrants, among whom riots are frequent. Of the agriculturists many are of Dutch descent, and about two millions still speak a Low German patois known as Pennsylvanian Dutch. Harrisburg is the capital; the metropolis is Philadelphia (1,047), the second largest city in the country; while Pittsburg, Alleghany, Scranton, and Reading are among the many large towns.