The various books, articles, monographs, and dissertations, which have been written on the subject of the Attic theatre and dramatic performances, are numerous enough in themselves to constitute a considerable literature. It will be sufficient in the present place to mention those to which I have been principally indebted. Of writings in which the subject is treated as a whole the most important is Albert Müller’s _Lehrbuch der Griechischen Bühnenalterthümer_ (Freiburg, 1886)—a work which is conspicuous for the industry, learning, and sound judgement displayed in its compilation, and for the lucid manner in which an immense amount of information is compressed into a comparatively limited space. The exhaustive account which it contains of the bibliography of the subject is especially valuable. Another book which I have found of the greatest help is Schneider’s _Das Attische Theaterwesen_ (Weimar, 1835). It consists mainly of a citation in full of all the ancient passages which refer to performances in the theatre; and although Schneider’s own views and inferences are now mostly antiquated, and his collection of ‘Quellen’ requires to be supplemented, the work will always be most interesting and serviceable to students of the Attic drama. The description of the Greek dramatic performances in the third volume of Bergk’s _Griechische Literaturgeschichte_ (Berlin, 1884) has been exceedingly useful and suggestive; and considerable assistance has been derived from the similar account in vol. ii. pt. 2 of Bernhardy’s _Grundriss der Griechischen Litteratur_ (Halle, 1880).