"But only moody and dull melancholy."
See Introd. p. [55]. In my Edit. only is at the end.
"And at her heels a huge infectious troop."
We should probably read his for 'her,' as kinsman is the antecedent.
"Hath scar'd thy husband from the use of his wits."
As 'his' was probably written 's, it escaped the printer's eye.