Found the following hamletworks.org entries referring to line 561

View Material Textual Note for 560
560 If it be so, as so tis put on me, {C4v}  

View Commentary Note for 561
561 And that in way of caution, I must tell you,1.3.95

View Material Textual Note for 561
561 And that in way of caution, I must tell you,1.3.95