In the second place, one must remember (1) that Tragedy has everything that the Epic has (even the epic metre being admissible), together with a not inconsiderable addition in the shape of the Music (a very real factor in the pleasure of the drama) and the Spectacle. (2) That its reality of presentation is felt in the play as read, as well as in the play as acted. (3) That the tragic imitation requires less space for the attainment of its end; which is a great advantage, since the more concentrated effect is more pleasurable than one with a large admixture of time to dilute it--consider the _Oedipus_ of Sophocles, for instance, and the effect of expanding it into the number of lines of the _Iliad_. (4) That there is less unity in the imitation of the epic poets, as is proved by the fact that any one work of theirs supplies matter for several tragedies; the result being that, if they take what is really a single story, it seems curt when briefly told, and thin and waterish when on the scale of length usual with their verse. In saying that there is less unity in an epic, I mean an epic made up of a plurality of actions, in the same way as the _Iliad_ and _Odyssey_ have many such parts, each one of them in itself of some magnitude; yet the structure of the two Homeric poems is as perfect as can be, and the action in them is as nearly as possible one action. If, then, Tragedy is superior in these respects, and also besides these, in its poetic effect (since the two forms of poetry should give us, not any or every pleasure, but the very special kind we have mentioned), it is clear that, as attaining the poetic effect better than the Epic, it will be the higher form of art. So much for Tragedy and Epic poetry--for these two arts in general and their species; the number and nature of their constituent parts; the causes of success and failure in them; the Objections of the critics, and the Solutions in answer to them.