CATANIA, one of the intendancies into which the island of Sicily is divided, and which comprehends the valleys of Demona and Mazza, and the whole Mount of Ætna. It is bounded on the north by Messina, on the east by the sea, on the south by Seragossa, on the west by Calatanisetta, and on the north-west by Palermo. It is divided into the three districts of Catania, Caltagironne, and Nicosia, and contains 289,406 inhabitants.