Out of his brows.

This was from the ignorance of the first editors; as is this unnecessary Alexandrine, which we owe to the players. The poet, I am persuaded, wrote,

us doth hourly grow

out of his lunes.

i.e. his madness, frenzy. THEOBALD.]

Lunacies is the reading of the folio.

I take brows to be, properly read, frows, which, I think, is a provincial word for perverse humours; which being, I suppose, not understood, was changed to lunacies. But of this I an not confident. [Steevens adopted Theobald's emendation]

III.iii.33 (262,7) of vantage] By some opportunity of secret observation.

III.iii.56 (263,9) May one be pardon'd, and retain the offence?] He that does not amend what can be amended, retains his offence. The king kept the crown from the right heir.

III.iii.66 (263,1) Yet what can it, when one cannot repent?] What can repentance do for a man that cannot be penitent, for a man who has only part of penitence, distress of conscience, without the other part, resolution of amendment.