There are numerous slips of the pen, corrections in phrasing and sentence structure, dashes instead of other marks of punctuation, a large blot of ink on f.

57, one major deletion (see note 32).
[27] In the margin of _F of F--A_ Mary wrote, "Lord B's Ch'de Harold." The reference is to stanzas 71 and 72 of Canto IV.

Byron compares the rainbow on the cataract first to "Hope upon a death-bed" and finally Resembling, 'mid the torture of the scene, Love watching Madness with unalterable mien.
[28] In _F of F--A_ Mathilda "took up Ariosto & read the story of Isabella." Mary's reason for the change is not clear.

Perhaps she thought that the fate of Isabella, a tale of love and lust and death (though not of incest), was too close to what was to be Mathilda's fate.

She may have felt--and rightly--that the allusions to Lelia and to Myrrha were ample foreshadowings.