About the middle of the seventeenth century, Cowley, misunderstanding the structure of Pindar's verse, invented another sort of Pindaric ode, which is called Irregular because, as he himself explained, "the numbers are various and irregular," and there was no formal stanzaic repetition. The lines were long or short according as the thought-rhythm demanded (or seemed to demand), and in respect to arrangement were not bound to any formal pattern. This freedom, under skilful control, may well produce felicitous results, but when not managed by poets of a strong and sure rhythmic sense—as it was not by the many Cowleyan imitators—it results merely in metrical license and amorphousness. "That for which I think this inequality of number is chiefly to be preferred," said Dr. Sprat, the first historian of the Royal Society, intending no sarcasm, "is its affinity with prose." But this argument, which is in part also that of the modern free-versifiers, is simply a confusion of two functions, the verse function and the prose function.

But before very long Cowley's invention found a true master in Dryden, whose To the Pious Memory of ... Mrs. Anne Killigrew (1686), Song for St. Cecelia's Day (1687), and Alexander's Feast (1697) are justly praised for their 'concerted music.' The example had in fact already been set by a still greater master; for Milton with his early experiments in unequal rimed lines (On Time and At a Solemn Music), his incomparable success with the irregular placing of rimes in Lycidas, and his choral effects both with and without rime in Samson Agonistes, had shown what English could do under proper guidance. Then, after Dryden, the regular Pindarics of Gray and certain of Collins' Odes helped to carry on the tradition down to Coleridge's Dejection, Monody on the Death of Chatterton, and Ode on the Departing Year, and its culmination in Wordsworth's Intimations of Immortality ode (1807). After that, both in time and in interest, come Shelley's Mont Blanc (1816) (which he himself described as "an undisciplined overflowing of the soul") and Tennyson's On the Death of the Duke of Wellington (1852) (which has at least Tennyson's almost unfailing technical dexterity). The work of Coventry Patmore in this kind of verse has not been generally approved. This is partly because of the subjects on which he wrote and partly because of his inability to compose lines of haunting melody—perhaps his deliberate avoidance of them. But in certain poems like The Azalea and The Toys the very intensity of the feeling both creates and sustains and in the end justifies the 'irregular' metre.

3. Blank Verse

Perhaps three-fourths of the greatest English poetry is in the unrimed 5-stress line called blank verse—nearly all the Elizabethan drama, Paradise Lost, some of the best of Keats and Shelley, Wordsworth's Michael, The Prelude, The Excursion (the good with the bad!), Tennyson's Princess and Idylls (notable poems of their age, though not to be ranked with 'the greatest'), and Browning's The Ring and the Book, together with most of the dramatic monologues. No other metrical form has such an interesting history; no other form has manifested so great a variety and adaptability for every kind of poetic thought and feeling. These two facts alone—its bulk and its variety—would justify a much fuller treatment than is possible here. But it will perhaps be sufficient to follow rapidly in outline the development of blank verse, with illustrations of the most significant stages, and then, in the following chapter, to devote more attention to blank verse than to rimed stanzas in the exposition of metrical harmonies and modulations.

The idea of writing unrimed verse was no doubt the most valuable result to English poetry of the academic attempts, towards the end of the sixteenth century, to write classical verse in English. It could be pointed out triumphantly that all the splendid poetry of classical antiquity—Homer and Lucretius and Virgil, Sappho and Catullus and Horace and Ovid—had been independent of rime; and whatever might be the disagreement on quantitative feet in English, it was impossible to deny that English could successfully copy this element of the great classical verse and recover, as Milton said, the ancient liberty "from the troublesome and modern bondage of riming."

The movement had already begun in Italy with Trissino's Sophonisbe, written in 1515, the first modern tragedy. It reached England in the middle of the century with the influence of the Italian Renaissance brought chiefly by Wyatt and Surrey. Surrey translated two books of the Æneid (II and IV) into blank verse (published in 1557); Sackville and Norton adopted it for the first English tragedy, Gorboduc (1565); and then Gascoigne used it in his Steele Glas (1576) for general didactic and satiric purposes. Thus the beginning was made, and it remained only for the new form to justify itself by its children. Experiments continued, with the first great achievement in Marlowe's Tamburlaine the Great.

The early examples show plainly both the influence of the parent couplet—for, as was said above, blank verse was written first as the old couplet without rime—and the syllable-counting principle: the line unit is prominent, there are comparatively few run-on lines or couplets, and some of Surrey's verse, for example, though it has the ten syllables then regarded as necessary, refuses to 'scan' according to more recent practice because the stresses are wholly irregular. On the other hand, there is often so great a regularity in coincidence of natural rhythm and metrical pattern, reinforced by some awkward wrenches of the conventional order of word and phrase, that the result is unpleasantly stiff and formal.

The Greeks' chieftains all irked with the war
Wherein they wasted had so many years,
And oft repuls'd by fatal destiny,
A huge horse made, high raised like a hill,
By the divine science of Minerva:
Of cloven fir compacted were his ribs;
For their return a feigned sacrifice:
The fame whereof so wander'd it at point.
In the dark bulk they clos'd bodies of men
Chosen by lot, and did enstuff by stealth
The hollow womb with armed soldiers.
There stands in sight an isle, high Tenedon,
Rich, and of fame, while Priam's kingdom stood;
Now but a bay, and road, unsure for ship.
Surrey, Second Book of Virgil's Æneid.

This is not so much monotonously regular as intolerably rough and unsteady.

For cares of kings, that rule as you have rul'd,
For public wealth, and not for private joy,
Do waste man's life and hasten crooked age,
With furrowed face, and with enfeebled limbs,
To draw on creeping death a swifter pace.
They two, yet young, shall bear the parted reign
With greater ease than one, now old, alone
Can wield the whole, for whom much harder is
With lessened strength the double weight to bear.
Gorboduc, Act I, sc. ii.