Note 41 — Chapter VII · THE MINOR WORKS
Reading edition
In the case of the Commedia, it would seem that Dante himself took measures to guard against interpolations. As is well known, he never uses any one series of rhymes more than once in the same canto; and, from the structure of the terza rima, it is impossible to introduce any fresh matter when the canto is once completed without violating this rule. This fact alone serves to convict of forgery the unknown person who inserted eighteen lines after Hell, xxxiii. 90, in one of the Bodleian manuscripts; as to which, see Dr. Moore’s Textual Criticism.