a province of Sicily, bounded north by the province of Palermo, east by Catania, south by Syracuse and the Mediterranean, west by Girgenti. It is divided into three districts,—viz., Caltanissetta, Piazza, and Terranova,—and has an area of about 1200 square miles, and a population (1851) of 180,791. The soil of the pro- vince is somewhat hilly, but well watered and fertile.

the capital of the above province, situated in an extensive and fertile plain near the right bank of the Talo, 62 miles S.E. of Palermo. It is well-built, and con- tains several handsome edifices. It is defended by a castle, and is the seat of judicial courts. In the neighbourhood, at Terra Pillata, are several springs emitting hydrogen gas, and also extensive sulphur-works. Pop. about 16,000.