Blank verse that has learned to tolerate such lines as the two here set in italics can only end by becoming prose. And, indeed, that was the destined development of the drama, even had the theatres never been closed under the Commonwealth. The history of blank verse reflects with curious exactness the phases of the history of the drama. When the metre was first set on the stage, in the Senecan drama, it was stiff and slow-moving; each line was monotonously accented, and divided from the next by so heavy a stress that the absence of rhyme seemed a wilful injury done to the ear. Such as it was, it suited the solemn moral platitudes that it was called upon to utter. Peele, Marlowe, and Shakespeare made the drama lyrical in theme and treatment; the measure, adapting itself to the change, became lyrical in their hands. As the drama grew in scope and power, addressing itself to a greater diversity of matter, and coming to closer grips with the realities of life, the lyrical strain was lost, and blank verse was stretched and loosened and made elastic. During the twenty years of Shakespeare's dramatic activity, from being lyrical it tended more and more to become conversational in Comedy, and in Tragedy to depend for its effects rather on the rhetorical rise and fall of the period than on the unit of the line. From the drama of Charles the First's time, when inferior workmen had carried these licenses to the verge of confusion, it is a perfectly natural transition to the heroic couplet for Tragedy and the well-bred prose of Etherege for Comedy. Blank verse had lost its character; it had to be made vertebrate to support the modish extravagances of the heroic plays; and this was done by the addition of rhyme. Comedy, on the other hand, was tending already, long before the civil troubles, to social satire and the life-like representation of contemporary character and manners, so that prose was its only effective instrument. At the time when blank verse was yielding to decay, Milton took it up, and used it neither for conversational nor for rhetorical purposes. In the interests of pure poetry and melody he tightened its joints, stiffened its texture, and one by one gave up almost all the licenses that the dramatists had used. From the first he makes a sparing use of the double ending. The redundant syllable in the middle of the line, which he sometimes allows himself in _Comus_, does not occur in _Paradise Lost_. In the later poem he adopts strict practices with regard to elision, which, with some trifling exceptions, he permits only in the case of contiguous open vowels, and of short unstressed vowels separated by a liquid consonant, in such words, for instance, as "dissolute," or "amorous." By a variety of small observances, which, when fully stated, make up a formidable code, he mended the shambling gait of the loose dramatic blank verse, and made of it a worthy epic metre.