Aristotle's _Poetics_ (text and transl. by S. H. Butcher, London, 1895; transl. by T. Twining, London, 1812; see also Donaldson's _Theatre of the Greeks_); H. Baumgart, _Aristoteles, Lessing, u. Goethe. Über das ethische u. ästhetische Princip der Tragödie_ (Leipzig, 1877); H. A. Bulthaupt, _Dramaturgie des Schauspiels_ (4 vols., Oldenburg u. Leipzig, 1893-1902); L. Campbell, _Tragic Drama in Aeschylus, Sophocles and Shakespeare_ (London, 1904); P. Corneille, _Discours du poëme dramatique--de la tragédie--des trois unités, OEuvres_, vol. i. (Paris, 1862); W. L. Courtney, _The Idea of Tragedy in Ancient and Modern Drama_ (Westminster, 1900); Diderot, _De la poésie dramatique_. _Entretiens sur le Fils Naturel, OEuvres complètes_, vii. (Paris, 1875); J. Dryden, _Essay of Dramatic Poesy_ and other critical essays (_Essays of J. Dryden_, ed. W. P. Ker, 2 vols., Oxford, 1900); G. Freytag, _Die Technik des Dramas_ (5th ed., Leipzig, 1886); G. W. F. Hegel, _Vorlesungen über Ästhetik_, ed. H. G. Hotho, bd. 3, chap. iii. c. _Die dramatische Poesie_ (Werke, x. 3; Berlin, 1838); G. Larroumet, _Études d'histoire et de critique dramatiques_, 2 sér. (Paris, 1892-1899); G. E. Lessing, _Hamburgische Dramaturgie_. _Erlautert von F. Schroter u. R. Thiele_ (Halle, 1877); _Materialien zu Lessing's Hamburgische Dramaturgie, von W. Cosack_ (Paderborn, 1876); G. H. Lewes, _On Actors and the Art of Acting_ (London, 1875); Sir T. Martin, _Essays on the Drama_ (London, 1874); K. Mantzius, _History of Theatrical Art in Ancient and Modern Times_, transl. by L. von Cossel (London, 1903, &c.); G. Meredith, _Essay on Comedy_ (Westminster, 1897); R. Prolss, _Katechismus der Dramaturgie_ (Leipzig, 1877); H. T. Rotscher, _Die Kunst der dramatischen Darstellung_ (3 vols., Berlin, 1841-1846); _Jahrbucher fur dramatische Kunst u. Literatur_ (Berlin and Frankfort, 1848-1849); P. de Saint-Victor, _Les Deux Masques, tragédie--comédie_ (3rd ed., 3 vols., Paris, 1881, &c.); Saint-Marc Girardin, _Cours de littérature dramatique_ (7th ed., 5 vols., Paris, 1868); A. W. von Schlegel, _Lectures on Dramatic Art and Literature_ (Eng. transl., London, 1846); Sir W. Scott, _Essays on Chivalry, Romance and the Drama_ (including his article "Drama" written for the Supplement to the 4th edition of the _Ency. Brit._, and reprinted in the 5th, 6th, 7th and 8th editions); F. T. Vischer, _Ästhetik_, vol. iv. (Stuttgart, 1857). The fullest general history of the drama extant is J. L. Klein's _Geschichte des Dramas_, 13 vols. and index (Leipzig, 1865-1886). See also, for encyclopaedic information, W. Davenport Adams, _A Dictionary of the Drama_, vol. i. (London, 1904); C. M. E. Béquet, _Encyclopédie de l'art dramatique_ (Paris, 1886); A. Pougin, _Dictionnaire historique et pittoresque du théâtre et des arts qui s'y rattachent_ (Paris, 1885).