The series of silver coins struck at Aradus in the last two centuries B.C. contains, in the letters added to the reverse type, rather more information upon the relations of the successive issues than is commonly to be derived from Greek coins: and a study of the specimens in the British Museum and Oxford collections, with the aid of casts from Berlin, Copenhagen, and Paris, has suggested that there may be a profitable field for investigation of the organization of this and the neighbouring mints. The statistics collected have therefore been recorded here as a starting-point.