MAY, Isle of, a small island at the mouth of the Frith of Forth, in Scotland, about a mile and a half in circumference, and seven miles from the coast of Fife, almost opposite to the rock called the Bass. It formerly belonged to the priory of Pittenweem, and was dedicated to St. Adrian, supposed to have been martyred in this place by the Danes; and hither, in ancient times, barren women used to come and worship at his shrine, in hopes of being cured of their sterility. It was here that the French squadron, having the Chevalier de St. George on board, anchored in the year 1708, when the vigilance of Sir George Byng obliged him to relinquish his design, and bear away for Dunkirk. The shores all round the island abound with fish, and the cliffs with water fowl.