Note 300 — NOTE ON SYMBOLS (continued 2)
Reading edition
W. Archer (Quarterly Review, ccviii. 466) suggests the possible use of a machine corresponding to the Greek ἐκκύκλημα (on which cf. A. E. Haigh, Attic Theatre3, 201), although he is thinking of it as a device for ‘thrusting’ out a set interior from the alcove, which does not seem to me necessary.