LISMORE, one of the Hebrides, or Western Islands of Scotland, belonging to Argyleshire, situated at the mouth of Loch Linnhe, about nine miles in length, and from one to two in breadth. The surface is hilly and uneven; but the soil is fertile, and yields a sufficient quantity of grain for the support of the inhabitants; oats, barley, potatoes, and flax being the articles of crop generally cultivated. The whole island lies upon a rock of limestone, which article is exported in considerable quantities. In the lakes there are strata of marl found varying from ten to sixteen feet in depth. It was anciently the residence of the bishops of Argyle, and contained, until very recently, a Roman Catholic college for the education of the clergy of that persuasion in this part of the country. The ruins of an old castle are still to be seen, and in several places vestiges of fortified camps. The population amounted in 1831 to 1790.