That certainly looks as if he did then know he had been deceived. But perhaps he only censures himself for being too much agitated by a real ghost.
TALBOYS.
That won't do.
NORTH.
But go back, my dear Talboys, to the first enacting of the Play. What could the audience have understood to be happening, without other direction of their thoughts than the terrified Macbeth's bewildered words? He never mentions Banquo's name—and recollect that nobody sitting there then knew that Banquo had been murdered. The dagger is not in point. Then the spectators heard him say, "Is this a dagger that I see before me?" And if no dagger was there, they could at once see that 'twas phantasy.
TALBOYS.
Something in that.
BULLER.
A settler.
NORTH.