Obvious typographical errors were repaired, but valid and consistently used archaics spellings were retained (for example, scimetar).
There is no numbered page 201, original skips from 200 to 202 (second column of 200 numbered 201 for continuity)
[P. 10], Columbus to Ferdinand, stanza 13: "Ere this was found"; multiple other poem sources read "Ere this was known".
[P. 294], The United States and the Macedonian, stanza 6: "To Carden then, in tones so bland,"—this line was missing in the original text, but was verified in other poem sources.
[P. 354], The Death of Harrison, end of stanza 4: The last two lines of this stanza, verified in other poem sources, were missing from the original text, which closed the stanza with—"On!—on with his ashes!—HE LEFT BUT HIS PLOUGH!"