We agree, then, to call by the name of poetry that form of art which uses rhythm to attain its ends, just as we call by the name of flying that motion which certain animals attain by the use of wings; that the feelings roused by poetry can be roused by unrhythmic order of words, and that rhythmic order of words is often deplorably bad art, or "unpoetic," have as little to do with the case as the fact that a greyhound speeding over the grass gives the spectator quite the exhilaration and sense of lightness and grace which is roused by the flight of a bird, and the fact that an awkward fowl makes itself ridiculous in trying to fly, have to do with the general proposition that flying is a matter of wings.... As a matter of fact, all writers on poetry take rhythm for granted until some one asks why it is necessary; whereupon considerable discussion, and the protest signed by a respectable minority, but a minority after all, that rhythm is not an essential condition of the poetic art. This discussion, as every one knows, has been lively and at times bitter. A patient and comprehensive review of it in a fairly impartial spirit has led to the conclusion, first, that no test save rhythm has been proposed which can be put to real use, even in theory, not to mention the long reaches of a historical and comparative study; secondly, that all defenders of the poem in prose are more or less contradictory and inconsistent, making confusion between theory and practice; and thirdly, that advocates of a rhythmic test, even in abstract definition, seem to have the better of the argument....