So much for the bare _vehicle_ of verse, but the poet himself, as Doctor Holmes says in his review of "Exotics," is a medium, a clairvoyant. "The will is first called in requisition to exclude interfering outward impressions and alien trains of thought. After a certain time the second state or adjustment of the poet's double consciousness (for he has two states, just as the somnambulists have) sets up its own automatic movement, with its special trains of ideas and feelings in the thinking and emotional centres. As soon as the fine frenzy, or _quasi_ trance-state, is fairly established, the consciousness watches the torrent of thoughts and arrests the ones wanted, singly with their fitting expression, or in groups of fortunate sequences which he cannot better by after treatment. As the poetical vocabulary is limited, and its plasticity lends itself only to certain moulds, the mind works under great difficulty, at least until it has acquired by practice such handling of language that every possibility of rhythm or rhyme offers itself actually or potentially to the clairvoyant perception simultaneously with the thought it is to embody. Thus poetical composition is the most intense, the most exciting, and therefore the most exhausting of mental exercises. It is exciting because its mental states are a series of revelations and surprises; intense on account of the double strain upon the attention. The poet is not the same man who seated himself an hour ago at his desk with the dust-cart and the gutter, or the duck-pond and the hay-stack, and the barnyard fowls beneath his window. He is in the forest with the song-birds; he is on the mountain-top with the eagles. He sat down in rusty broadcloth, he is arrayed in the imperial purple of his singing robes. Let him alone, now, if you are wise, for you might as well have pushed the arm that was finishing the smile of a Madonna, or laid a veil before a train that had a queen on board, as thrust your untimely question on this half-cataleptic child of the Muse, who hardly knows whether he is in the body or out of the body. And do not wonder if, when the fit is over, he is in some respects like one who is recovering after an excess of the baser stimulants." As a writer of humorous poetry, it is safe to say that Oliver Wendell Holmes is without a peer. _The Height of the Ridiculous_, _The September Gale_, _The Hot Season_, _The Deacon's Master-piece_, _Nux Postcoenatica_, _The Stethoscope Song_, how many a "cobweb" have they shaken from the tired brain! And where in the whole range of humorous literature will you find a more delightful morsel than the "_Parting Word_," that follows?-- I must leave thee, lady sweet! Months shall waste before we meet; Winds are fair and sails are spread, Anchors leave their ocean bed; Ere this shining day grows dark, Skies shall guide my shoreless bark; Through thy tears, O lady mine, Read thy lover's parting line.