Of course, our evidence is far from being as complete as we could wish, and must therefore be supplemented at many points by conjecture pure and simple; but this fact does not justify us in throwing all our data overboard and in beginning _de novo_. In this matter we have been too prone to follow a practice which the late Professor Verrall characterized, in a different connection, as follows: “We are perhaps too apt, in speculations of this kind, to help a theory by the convenient hypothesis of a wondrous simpleton, who did the mangling, blundering, or whatever it is that we require.”[15] Now, whatever may be true in other cases, Aristotle at least was no “simpleton,” competent only to mangle his sources of information; and furthermore, apart from certain ethnographic parallels which are of only secondary importance after all,[16] our fund of knowledge in this field is in no wise comparable with his. In fact, except for the extant plays our information is almost confined to what we derive, directly or indirectly, from him. Since this is so, what can be more absurd than to reject his conclusions and have recourse to unhampered conjecture? But if we are to hold fast to Aristotle, one precaution is necessary—we must be sure that we do not make him say more or less than he does say. He wrote for a very different audience from that which now reads his words and with a very different purpose from that to which his book is now put. And these factors often render him enigmatical. This resulted also from his frequently assuming a familiarity with things which now cannot always be taken for granted. As Professor Bywater expressed it: “It is clear from Aristotle’s confession of ignorance as to comedy that he knows more of the history of tragedy than he actually tells us, and that he is not aware of there being any serious lacuna in it.”[17] Thus, Aristotle says that tragedy was “improvisational by origin” and, more specifically, was derived “from the leaders of the dithyramb.”[18] Though this expression unhappily is somewhat lacking in precision, the main item, that the dithyramb is the parent of tragedy, emerges from any interpretation. Ridgeway may proceed to dissociate the dithyramb from Dionysus and to derive it from ceremonies at the tombs of heroes if he choose; however unwarranted, that is at least logical. But to ignore this statement of Aristotle’s and to seek, as many do, to trace tragedy back to δρώμενα (“ritual acts”) of various kinds by another line of development transgresses good philological practice.