What was the witches' potion in 'Macbeth'?

Poisoned entails, toad venom, fillet of a fenny snake, eye of newt, toe of frog, wool of bat, tongue of dog, adder's fork, blind worm's sting, lizards leg, owlet's wing, scale of dragon, tooth of wolf, witches' mummy, maw & gulf of shark, root of hemlock, liver of blaspheming Jew, gall of goat, slips of yew (cut under the light of the moon), nose of Turk, Tartar's lips, finger of infant (illegitimate, strangled at birth), Tiger's chaudron & baboon's blood.