Book 3
1.61
In these epistles his heading was Welfare, as that of Epicurus was A Good Life, and that of Cleon All Joy. They comprise: one to Aristodemus, two to Archytas, four to Dionysius, one to Hermias, Erastus and Coriscus, one each to Leodamas, Dion and Perdiccas, and two to Dion’s friends. This is the division adopted by Thrasylus and some others.
1.61
Some, including Aristophanes the grammarian, arrange the dialogues arbitrarily in trilogies.
