anapestic foot is inserted to correspond to the nature of the monster
described. No doubt irregularities sometimes occur by oversight or from
lack of skill; but with our greater poets, whose thought and emotion
instinctively assume the proper metrical form, the irregularities are
motived.

+51. Rhyme.+ _Rhyme_, or as it is more correctly spelled _rime_, is a
similarity of sound between words or syllables. Identity of sound, as
_heir_, _air_, _site_, _sight_, is not rhyme. It usually occurs between
words at the end of a verse, and serves to lend both beauty and emphasis
to poetry. The order in which rhymes occur is various. They may be found
in succeeding lines; as,--

"The tear down childhood's cheek that flows
Is like the dewdrop on the rose;
When next the summer breeze comes by,
And shakes the bush, the flower is dry."

They may occur in alternate lines; as,--

"The sun has long been set;
The stars are out by twos and threes;
The little birds are piping yet
Among the bushes and the trees."

Or the rhymes may occur at longer intervals; as,--

"I envy not in any _moods_
The captive void of noble rage,
The linnet born within the cage,
That never knew the summer _woods_."

In _double rhyme_ the correspondence of sound extends to two syllables,
and in _triple rhyme_ to three. A _double rhyme_, as _pleasure_,
_measure_, is also called _feminine_, while single rhymes are called
_masculine_. The following illustrates both _double_, or _feminine_, and
_masculine_ rhymes:

"'Tis the hour when happy faces
Smile around the taper's light;
Who will fill our vacant places?
Who will sing our songs to-night?"

The following from Hood illustrates _triple rhyme_:

"Take her up _tenderly_,
Lift her with care;
Fashioned so _slenderly_,
Young and so fair."

_Triple rhyme_ is usually employed only in a light, satirical, or
mocking vein. Byron uses it frequently in his frivolous or reckless
moods; for example,--

"O world that was and is! What is _cosmogony_?
Some people have accused me of _misanthropy_,
And yet I know no more than the _mahogany_
That forms this desk of what they mean; _lycanthropy_
I comprehend; for, without transformation
Men become wolves on any slight occasion."

_Middle rhyme_ is that which exists between the middle and final w