ENHALLOW, an island, in the parish of Rousay-and-Eagleshay, county of Orkney; containing 26 in- habitants. It is a low and very small islet, somewhat in the form of a heart, lying westward of the island of Rousay, from which it is separated by a reef of rocks. The Sound of Enhallow is on the south, between this and the island of Pomona: it is narrow; and as the tide is rapid, its passage can only be attempted with a fair wind and in moderate weather, it being otherwise very dangerous.