This work presents five studies that are parerga to the online edition of Euripidean scholia (EuripidesScholia.org), for which the release of a much more complete sample covering Orestes 1-500 is planned for 2018. The first chapter reviews the achievements and shortcomings of previous editions of Euripidean scholia and argues for a more comprehensive treatment of this and similar corpora of scholia and for the importance of glosses. It assesses the few surviving traces in the scholia of views attributed to philologists and commentators working from Hellenistic times to early Byzantium. The second chapter illuminates a genre of annotation termed here "teachers' scholia," prominent in many of the younger manuscripts, but also present to a small degree in the oldest witnesses. Evidence for the teaching of Ioannes Tzetzes related to Euripides is gathered more completely than previously, as is that for Maximus Planudes. The third chapter offers an edition and commentary on a miscellany of teachers' notes on Hecuba first attested in 1287 but clearly copied from an older source, and treats some other unusual notes related to Hecuba carried in Palaeologan sources. The connection of this material with middle Byzantine sources (especially Tzetzes and Eustathius) is assessed. The fourth chapter marshals the evidence for the dating of the Marcianus graecus 471 (M) in the 11th (and not the 12th) century and provides palaeographic and codicological details. The fifth chapter argues that any possibly Planudean connections to Vaticanus graecus 909 (V) are to be found only in the cursive notes added more than a generation after the codex was produced (probably ca. 1250-1280, as proposed by Nigel Wilson). The hands of the two scribes who worked in tandem on V are described, and the distribution of their work documented."--Site web de l'éditeur.