Found the following hamletworks.org entries referring to line 605

View Commentary Note for 605
605 Hora. It is <a> nipping, and an eager ayre.1.4.2

View Immaterial Textual Note for 605
605 Hora. It is <a> nipping, and an eager ayre.1.4.2

View Material Textual Note for 605
605 Hora. It is <a> nipping, and an eager ayre.1.4.2