Note 23 — Chapter II

In reference to this imaginary charm, Sir Thomas Browne observes, in his "Vulgar Errors." "What natural effects can reasonably be expected, when, to prevent the Ephialtes, or Nightmare, we hang a hollow stone in our stables?" Grose also states, "that a stone with a hole in it, hung at the bed's head, will prevent the nightmare, and is therefore called a hag-stone." The belief in this charm still lingers in some districts, and maintains, like the horse-shoe affixed to the barn-door, a feeble stand against the superstition-destroying "march of intellect."