An island of the Mediterranean, 170 m. long and 75 m. broad, the second largest, Sicily being larger, and to the S. of Corsica; is since 1859 part of the kingdom of Italy; it has a fruitful soil, and presents a diversified surface of hill and valley; the chief export is salt, and there are extensive fisheries; the capital is Cagliari, in the S.; it is rich in mineral resources, but the exploitation of these is in a backward state.