He sought them in a cave upon the heath, where they, who knew by foresight of his coming, were engaged in preparing their dreadful charms by which they conjured up infernal spirits to reveal to them futurity. Their horrid ingredients were toads, bats, and serpents, the eye of a newt and the tongue of a dog, the leg of a lizard and the wing of the night-owl, the scale of a dragon, the tooth of a wolf, the maw of the ravenous salt-sea shark, the mummy of a witch, the root of the poisonous hemlock (this to have effect must be digged in the dark), the gall of a goat, and the liver of a Jew, with slips of the yew-tree that roots itself in graves, and the finger of a dead child. All these were set on to boil in a great kettle, or caldron, which, as fast as it grew too hot, was cooled with a baboon’s blood. To these they poured in the blood of a sow that had eaten her young, and they threw into the flame the grease that had sweaten from a murderer’s gibbet. By these charms they bound the infernal spirit to answer their questions.