Which part of this excerpt from william shakespeare's macbeth uses apostrophe?

macbeth:
1.mine eyes are made the fools o' the other senses,
or else worth all the rest: i see thee still;
and on thy blade and dudgeon gouts of blood,
which was not so before. there's no such thing:
it is the bloody business which informs
thus to mine eyes. now o'er the one halfworld
nature seems dead, and wicked dreams abuse

2.the curtain'd sleep; now witchcraft celebrates
pale hecate's offerings; and wither'd murder,
alarum'd by his sentinel, the wolf,
whose howl's his watch, thus with his stealthy pace,
with tarquin's ravishing strides, towards his design
moves like a ghost.

3.thou sure and firm-set earth,
hear not my steps, which way they walk, for fear
thy very stones prate of my whereabout,
and take the present horror from the time,
which now suits with it.—whiles i threat, he lives;
words to the heat of deeds too cold breath gives.

4.i go, and it is done; the bell invites me.
hear it not, duncan, for it is a knell
that summons thee to heaven or to hell.