Edmund William Gosse, 1911 Encyclopædia Britannica, Volume 26… (1911)
“ It is impossible, however, to break off here, since there is no rhyme to forte, which has to be supplied twice in the succeeding terzina, where, however, a fresh rhyme, trovai, is introduced, linking the whole to a still further terzina, and so on, indefinitely. The only way in which a poem in terza rima can be closed is by abandoning a rhyme, as at the end of Canto 1 of the Inferno, where no third rhyme is supplied to Pietro and dietro. Boccaccio wrote terza rima in close following of Dante, but it has not been a form very frequently adopted by Italian poets. ”
