Found the following hamletworks.org entries referring to line 642-3

View Commentary Note for 642
642-3 Say why is this, wherefore, what should we doe? {Beckins.}  

View Immaterial Textual Note for 642
642 Say why is this, wherefore, what should we doe? {Beckins.} 1.4.57

View Material Textual Note for 642
642-3 Say why is this, wherefore, what should we doe? {Beckins.}