London: Thomas Davison [i.e., John Murray], 1819-1821 (Cantos I-V, Volumes I-II)/John Hunt, 1823-24 (Cantos VI-XVI, Volumes III-VI). Scarce complete first edition set of Byron's great work which was widely criticized as immoral upon publication and is now considered one of the greatest poems of the Romantics; from the library of American writer Erica Jong. Volume one was produced in quarto format and the subsequent 5 volumes in octavo (Davison abandoned the quarto format after disappointing sales of the first volume), six volumes uniformly bound in full morocco with gilt titles and tooling to the spine, double gilt ruling to the front and rear panels, gilt inner dentelles, marbled endpapers, all edges gilt. With an autograph letter signed by Lady Byron bound into the first volume. Written from Moore Place, Esher, the letter reads in part, "Dear Sir, I am much obliged to you for offering to look for another young Teacher in place of the one who is engaged, but I have no difficulty in…