Lady Macbeth. A foolish thought, to say a sorry sight.

Macbeth. There’s one did laugh in ’s sleep,

And one cried, “Murder!” that they did wake each other;

I stood and heard them: but they did say their prayers,

And address’d them again to sleep.

Macbeth, Act ii., Sc. 2.

Stern, severe, harsh feelings have a tendency to contract the throat; hence, we get a quality that is called the Guttural. It is heard only where the passion grips the throat.

Mend, and change home,

Or by the fires of heaven, I’ll leave the foe,