"Upon his bloody finger he doth wear A precious ring, that lightens all the hole, Which, like a taper in some monument, Doth shine upon the dead man's earthy cheeks, And shows the ragged entrails of the pit." A piece of popular superstition makes it unlucky to wear an opal ring, although this lovely stone has always been an object of peculiar admiration from the beautiful variety of colours which it displays, and in the Middle Ages was even thought to possess the united virtues of all the gems with whose distinctive colours it was emblazoned. The diamond was believed to counteract poison, a notion which prevailed to a comparatively late period; though, according to another belief, it was considered the most dangerous of poisons, and as such we find it enumerated among the poisons administered to Sir Thomas Overbury, when a prisoner in the Tower. An emerald ring was thought to insure purity of thought; and a toadstone ring was worn as an amulet to preserve new-born children and their mothers from fairies. Among the omens associated with rings, we may briefly note that to lose a ring which has been given as a pledge of affection is unlucky; as also is the breaking of a ring on the finger; while further superstitions relating to the wedding-ring have been noticed at length in our chapter on marriage. In days gone by, too, "medicated rings" were held in great repute, and were much used for the cure of diseases, instances of which we find among the remedies still in use for cramp, epilepsy, and fits. Silver seems to have been considered highly efficacious; and rings made of lead, mixed with quicksilver, were worn as charms against headaches and other complaints. Dactylomancy, or divination by rings, is not quite forgotten among eager aspirants after matrimony, one mode being to suspend a ring by a thread or hair within a glass tumbler, notice being taken as to how many times it strikes the sides of the glass without being touched. Once more, there is an old piece of folk-lore on the colours of stones in "keepsake rings":-- "Oh, green is forsaken, And yellow is forsworn, But blue is the prettiest colour that's worn." Passing from the ring to another article of dress--perhaps the most insignificant--namely, the pin, we nevertheless find it invested with all kinds of curious superstitions. Thus, it is said that on seeing a pin, one should always pick it up for the sake of good luck, as those who omit to do so run into imminent danger of being overtaken by misfortune, a notion embodied in the following rhyme:-- "See a pin and pick it up, All the day you'll have good luck; See a pin and let it lie, All the day you'll have to cry."