Duncan is cut off betimes by treason leagued with witchcraft, and Macduff is ripped untimely from his mother's womb to avenge his death. Macbeth, after the death of Banquo, wishes for his presence in extravagant terms, "To him and all we thirst," and when his ghost appears, cries out, "Avaunt and quit my sight," and being gone, he is "himself again." Macbeth resolves to get rid of Macduff, that "he may sleep in spite of thunder;" and cheers his wife on the doubtful intelligence of Banquo's taking-off with the encouragement—" Then be thou jocund: ere the bat has flown his cloistered flight; ere to black Hecate's summons the shard-born beetle has rung night's yawning peal, there shall be done—a deed of dreadful note." In Lady Macbeth's speech "Had he not resembled my father as he slept, I had done 't," there is murder and filial piety together, and in urging him to fulfil his vengeance against the defenceless king, her thoughts spare the blood neither of infants nor old age. The description of the Witches is full of the same contradictory principle; they "rejoice when good kings bleed," they are neither of the earth nor the air, but both; "they should be women, but their beards forbid it;" they take all the pains possible to lead Macbeth on to the height of his ambition, only to betray him in deeper consequence, and after
