All modern editions of Horace’s Lyric contain 17 iambic pieces of his Book of Epodes, though majority of manuscripts and editions since the Late Antiquity have had 18 poems. The 18-th piece is the section of the 17-th epode, namely verses 53-81, with the answer of sorceress Canidia to Horace’s pleading (verses 1-52), which had been transmitted as a separate poem. Though three medieval manuscripts (φ, ψ, π) offer the version with 17 poems, the Epode was finally “re-unified” only in the middle of the XVI cent. The earliest edition containing this correction is the one of 1546 edited by Hermann Ulner (lat. Hermannus Figulus).