His heart and Biddle broke together
On 'change.

Now let me give an instance of true fancy from Butler, the author of "Hudibras," certainly the greatest wit who ever wrote English, and whose wit is so profound, so purely the wit of thought, that we might almost rank him with the humorists, but that his genius was cramped with a contemporary, and therefore transitory, subject. Butler says of loyalty that it is

True as the dial to the sun
Although it be not shined upon.

Now what is the difference between this and the examples from Warner and Morris which I have just quoted? Simply that the comparison turning upon the word true, the mind is satisfied, because the analogy between the word as used morally and as used physically is so perfect as to leave no gap for the reasoning faculty to jolt over. But it is precisely this jolt, not so violent as to be displeasing, violent enough to discompose our thoughts with an agreeable sense of surprise, which it is the object of a pun to give us. Wit of this kind treats logic with every possible outward demonstration of respect—"keeps the word of promise to the ear, and breaks it to the sense." Dean Swift's famous question to the man carrying the hare, "Pray, sir, is that your own hare or a wig?" is perfect in its way. Here there is an absolute identity of sound with an equally absolute and therefore ludicrous disparity of meaning. Hood abounds in examples of this sort of fun—only that his analogies are of a more subtle and perplexing kind. In his elegy on the old sailor he says,

His head was turned, and so he chewed
His pigtail till he died.

This is inimitable, like all the best of Hood's puns. To the ear it is perfect, but so soon as you attempt to realize it to yourself, the mind is involved in an inextricable confusion of comical non sequiturs. And yet observe the gravity with which the forms of reason are kept up in the "and so." Like this is the peddler's recommendation of his ear-trumpet:

I don't pretend with horns of mine,
Like some in the advertising line,
To magnify sounds on such marvellous scales
That the sounds of a cod seem as large as a whale's.

There was Mrs. F. so very deaf
That she might have worn a percussion cap
And been knocked on the head without hearing it snap.
Well, I sold her a horn, and the very next day
She heard from her husband in Botany Bay.

Again, his definition of deafness:

Deaf as the dog's ears in Enfield's "Speaker."