§ =158.= In narrative poetry the five-foot verse rhyming in couplets, _heroic verse_, was a favourite metre. As a close in the sense coincides with that of each couplet, this metre tends to assume an epigrammatic tone, especially since enjambement seldom occurs after the Restoration. To avoid the monotony thus occasioned, many Restoration poets linked three verses together by one and the same rhyme, whereby the regular sequence of couplets was then interrupted wherever they pleased. Sometimes such threefold rhymes (_triplets_) serve the purpose of laying a special stress on particular passages, a practice which is, moreover, to be observed as early as in some contemporaries of Shakespeare, e.g. in Donne. A somewhat freer structure than that of the heroic verse is, as a rule, exhibited by the five-foot line when employed in poems in stanza form. In this verse a considerable part is played by enjambement. This also holds good for the rhymed five-foot verse employed in dramatic poetry, which usually rhymes in couplets, though alternate rhymes are occasionally used. After Lyly's _The Maid's Metamorphosis_, entirely written in heroic verse, this metre was chiefly employed by Shakespeare and his contemporaries for prologues and epilogues. Rhymed five-foot verses frequently occur in Shakespeare's earlier dramas, e.g. in _Romeo and Juliet_, where their technical structure is found to be fairly strict. In his later dramas, on the other hand, e.g. in the Prologue and Epilogue to _Henry VIII_, the heroic verse is, on the analogy of the freer treatment of his later blank verse, also more loosely constructed. Enjambement, and the caesuras connected with it after the first and fourth accents, are often met with. § =159.= Dryden's dramatic heroic verse does not differ essentially from that of his satirical poems and translations. After Dryden returned to blank verse for dramatic writing, heroic verse ceased to be employed for this purpose. Rhymed verse, rhyming in couplets and stanzas, however, still continued to be in vogue in lyrical, satirical, didactic, and narrative poetry.