2 While preparing this paper for publication, I received a special issue of the journal Linguistica e Letteratura 29.1-2 (2004), in which the procedure of rewriting texts is discussed from various angles. See esp. the contributions by L. Spina, 'Esercizi di stile: riscritture e metamorfosi testuali. Un'introduzione' (9-12), and by M. Grimaldi, 'A proposito dell'esegesi retorico-grammaticale: qualche esempio di metafrasi/riscrittura' (21-49). On the various applications of the term 'metathesis' in ancient grammar and rhetoric, see U. Schindel, 'Enargia, Metathesis, Metastasis: Figurendefinitionen bei Isidor und Quintilian', Glotta 71 (1993), 112-19 at 113. In this paper, the word 'metathesis' refers to the technique of rewriting a given text, whether in prose or poetry, in order to make a comparison between the first and second version, thereby pointing to certain virtues, faults or particularities in the style of the original. Dionysius of Halicarnassus usually refers to this technique with the verb metatí qhmi ('to change', 'to transpose', 'to place differently'), but he also uses other verbs, such as aÒ lla´ttw ('to change', 'to alter') and other compound verbs with meta-, including metakine´w ('to change', 'to change places'), metapi´ptw ('to undergo a change') and metarruqmi´zw ('to change the form'). 3 The standard work on Dionysius' critical methods is that of Bonner (1939), who has shown that Dionysius' use of these methods became increasingly sophisticated in the course of his