The text of Seneca's Letters, despite the attention it has received from scholars in the last fifty years, still leaves much to be desired in a large number of places. It is a field in which emendations can be proposed (and judged) with rather more security than is often the case in classical Latin prose, because Seneca was a very prolific writer, exceeded only by Cicero and Livy in the bulk of his extant work. The absence of a special lexicon for this eminent author constitutes a genuine difficulty of course, but it can be overcome in part at least by a constant reading and re-reading of his works, not excluding the dramas. The following suggestions are based on a more intense application to Seneca than Quintilian would be likely to have approved.