In one of the latest revises stanza x. was added to the First Canto. The last four lines of stanza xi. first appeared in the Seventh Edition.
The Second Canto suffered no alteration except the substitution of lines 1131-1133 for two lines which were expunged.
Larger additions were made to the Third Canto. Lines 1299-1375, or stanza v. (included in a revise dated January 6, 1814), stanzas xvii. and xxiii., numbering respectively 77, 32, and 16 lines, and the two last lines of stanza x., 127 lines in all, represent the difference between the text as it now stands and the original MS.
In a note to Byron's Poetical Works, 1832, ix. 257, it is stated that the Corsair was begun on the 18th and finished on the 31st of December, 1813. In the Introduction to the Corsair prefixed to the Library Edition, the poem is said to have been composed in ten days, "at the rate of 200 lines a day." The first page of the MS. is dated "27th of December, 1813," and the last page "December 31, 1813, January 1, 1814." It is probable that the composition of the first draft was begun on the 18th and finished on the 27th of December, and that the work of transcription occupied the last five days of the month. Stanza v. of Canto III. reached the publisher on the 6th, and stanzas xvii. and xxiii. on the 11th and 12th of January, 1814.
The First Edition amounted to 1859 lines (the numeration, owing to the inclusion of broken lines, is given as 1863), and falls short of the existing text by the last four lines of stanza xi. It contains the first dedication to Moore, and numbers 100 pages. To the Second Edition, which numbers 108 pages, the following poems were appended:—
To a Lady Weeping.
From the Turkish.
Sonnet to Genevra ("Thine eyes' blue tenderness," etc.).
Sonnet to Genevra ("Thy cheek is pale with thought," etc.).
Inscription on the Monument of a Newfoundland Dog.