No article of decoration has been more extensively used as a "Memento Mori" or for memorial purposes than the finger ring. The association of the ring is largely with affairs of the heart, and lovers are united with it. And since the form itself is emblematic of eternity, so by this same token of affection has the memory of departed friends been kept green. The sepulchral emblems referred to were not made use of for mediæval ornaments. But in the sixteenth century they were very frequent, especially on rings. One of the most remarkable specimens of the wonderful mastery over technical difficulties which stamps the goldsmith's work of this time is a "Memento Mori" ring of German work in the Waddesdon Bequest. Its bezel or top is in the form of a book, decorated at each corner with a diamond, emerald, sapphire, and ruby, with snakes and toads between them. In the centre is a death's head. The lid on opening discloses a recumbent figure with skull and hour-glass. On the shoulders of the ring, supporting the bezel, are figures of Adam and Eve representing The Fall and Expulsion from Eden. All the figures are enamelled in high relief, and though merely a fraction of an inch in size, are executed with extraordinary fidelity. A ring described as having belonged to Mary Stuart is in the possession of the Earl of Ilchester. Its bezel, composed of a large ruby cut in the form of a death's head and set with diamond eyes, is supported underneath by cross-bones in enamel. Woeiriot's beautiful collection of designs for rings, of the year 1561, contains a ring of this kind surmounted with a skull and cross-bones; and Gilles Légaré's _Recueil_ of a century later has an engraving of similar pattern (Pl. XL). English rings of the sixteenth century have a death's head carved in intaglio on carnelian, or sunk in the metal of the ring and sometimes filled with enamel. Around is the motto "Memento Mori," and similar expressions in Latin or in English (Pl. XXXVI, 12). A certain Agnes Hals whose will is dated 1554 bequeathed to her niece "my rynge of gold with the wepinge eie," and to her son "my rynge with the dead manes head." From the commencement of the seventeenth century Memento Mori rings begin to be worn also as memorials of the departed, and bequests of money were frequently made for their purchase. The decoration of many of the rings of this period is very curious. On some the death's head in its natural shape is beautifully formed in enamel, has small diamond eyes, and is supported on each side by skeletons bent along the hoop of the ring. The bezel of others is of crystal in the shape of a coffin, the lid of which on being removed discloses a skeleton. Widows on the death of their husbands sometimes converted their wedding rings into memorial rings. This was done by engraving outside an elongated skeleton, the bones of which were brought into prominence by a background of black enamel.