Found the following hamletworks.org entries referring to line 257

View Commentary Note for 257
257 Ham. Seemes Maddam, nay it is, I know not seemes,1.2.76

View Immaterial Textual Note for 257tnichanged.xml
257 Ham. Seemes Maddam, nay it is, I know not seemes,1.2.76

View Material Textual Note for 257
257 Ham. Seemes Maddam, nay it is, I know not seemes,1.2.76

View Commentary Note for 265
265 For they are actions that a man might play 1.2.84

View Commentary Note for 266
266 But I haue that within which {passes} <passeth> showe1.2.85