CANNA, an island of the Hebrides, forming part of the parish of Small-Isles, in the district of Mull, county of Argyll; and containing 255 inhabitants. This island is about thirty miles distant from that of Eigg, and is computed to be four miles in length and one in breadth, containing about IQOO acres; it is partly high and rocky, but affords excellent pasture, and tolerable tillage. The harbour is accounted one of the best among the Hebrides, though difficult of approach in stormy weather, owing to the narrowness of the entrance, and the sunken rocks that he near it. On the south-east side of Canna is Sand Island, separatsd by a channel which is dry at low water.