(Apparatus Criticus): The examples of bits of apparatus criticus indicate that the expected language is the traditional Latin, but this is not stated explicitly, so perhaps this will be up to future editors. Various edition prefaces in the OCT series have appeared in English, and the advisers of the Teubner series have considered the matter, but that series maintains the instruction that a preface should be in Latin.[2] So far there has not been a corresponding move in printed editions toward replacing the traditional Latin style of the apparatus.
Mastronarde and Tarrant write: