The two magical objects are generally also sharply distinct in their mode of use. The amulet is designed to render protection as effectively as possible against external dangers; it must be visible, for every one must see that its bearer is protected. Hence almost all amulets are worn about the neck. This was true of primitive man, and holds also of the survivals of the ancient amulets--women's necklaces, and the badges of fraternal organizations worn by men. The fact that a simple cord was used among primitive peoples and still prevails in present-day superstition, makes it probable that the original amulet was the cord itself, fastened about the neck or, less frequently, about the loins or the arm. Later, this cord was used to support the amulet proper. Even the Australians sometimes wear a piece of dried kidney suspended from a cord of bast--we may recall that the kidney is one of the important seats of the corporeal soul. The hair, teeth, and finger-nails of the dead likewise serve as amulets, all of them being parts of the body which, because of their growth, might well give rise to the idea that they, particularly, possessed soul-like and magical powers. The custom of attaching hair, or a locket containing hair, to a necklace, has survived even down to the present, though, of course, with a far-reaching change of meaning. The magical protection of earlier ages has become a memorial of a loved one who has died. But here likewise we may assume that the change was gradual, and that the present custom, therefore, represents a survival of the primitive amulet. There are other objects also that apparently came to be amulets because of their connection with soul-ideas. Of these, one of the most remarkable is the scarab of the ancient Egyptians, which likewise continues to be worn even to-day. This amulet is a coloured stone shaped like a beetle--more specifically, the scarab. This beetle, with its red wing-coverings, has approximately the form of a heart; for this reason, both it and its representation were thought to be wandering hearts. As an amulet, however, its original significance was that of a vehicle of the soul, designed to protect against external dangers.