This research is an instrumental investigation of a theory of rhythmical performance of poetry, originally propounded speculatively in the author's Perception-Oriented Theory of Metre (1977). "Iambic pentameter" means that there is a verse unit consisting of an unstressed and a stressed syllable (in this order), and that the verse line consists of five such units. In the first 165 verse lines of Paradise Lost there are two such lines. The theory takes...